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The following file is part of the
James Doyle Sell Mining Collection
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CONTACT INFORMATION Mining Records Curator
Arizona Geological Survey 416 W. Congress St., Suite 100
Tucson, Arizona 85701 520-770-3500
http://www.azgs.az.gov [email protected]
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I~EPA~TMENT OF MINERAL RESOURCES ~/~[V(~ ~}}{~0, pi ~I'AT~ OF ARIZONA
FIELD ENGINEERS REPORT
F£B 1 1j 1995 Mine Copper V a l l e y Claims . Date A p r i l 6, 1966
~ urgan Pipe or Kerns Claims) District Ajo Mining District - Pima County Engineer Lewis A. Smith
Subje~: Mine visit with Joe Kostolnik and his wife, Mrs. Young of Glob@ and James Parmer, a partner in the claims with Leo Deffern of Ajo.
Property: The property consists of 14 claims that we=e relocated October 3, 1963 by Parmer and Deffern.
Location: Approximately Sec. 7, 8, TI2S, R6W - recorded in book 2162, p. 326 Sec. 12, TI2S, RTW (?)
Owners: James Parmer (50%), 17 E. Orange Drive, Phoenix; Joe Deffern (50%), Ajo.
Minerals : Copper, silica
Work: Work consists of several pits, cuts, trenches, etc., mostly due to assessment and location work. Two drill holes were reportedly sunk, but no data was submitted on them.
Production: There is no recorded production of consequence.
Geology: The area consists largely of Cardigan gneiss formation, schist, quartz- monzonite (Carnelia). Augen gneiss, quartz-diorite gneiss, medium grained quartz-mica- schist, fine-grained quartz-mica-schist, some pegmatite. This rock has often been intru, by quartz-monzonite (more particularly Cornelia quartz-monzonite), and andesite dikes, irregular masses, etc. The cardigan gneiss structure is tough to determine although there is possibly a general trend of the foliation is north to northwest, but this changes very rapidlywithout apparent system. The refoliation trend in the Eastern portion of the claims seemed to be more north to slightly northeast and the dips were generally nearly vertical, to steeply northwest, whereas in the west half of the claims the general strike is northwest with a general dip of 45 to 75 degrees to the south. The andesite or quartz monzonite porphyritic dikes, when present, and the gneiss-schist comp~ often are concordantly oriented with the refoliation pattern when schist is present. Th( intrusive rocks usually are in irregular bands between schist areas and sometimes pinch and swell and in a few cases, they are cut off by faults. (The general geology of this area is described in the U.S. Geology Survey P.P. 208 (1946) on plate 3 and pp. 11-15 under Cardigan gneiss.
The block, that contains the Cardigan gneiss, and intruded rocks lies between two, to a large degree, inferred faults of apparently considerable magnitude, and with large throws vertically. On the southeast, Cornelia quartz monzonite capped by Sneed andesite, (middle Tertiary (?) butt against the Cardigan gneiss, whereas, to the North of the "No=i fault, Sneed andesite, capped by Childs latite and late basalts also butt against the Cardigan gneiss. Thus the Cardigan block between the two inferred faults seems to be a horst structure which narrows, as a wedge, toward the northwest and widens toward the southeast. Local areas of Cornelia monzonite outcrop in the southwest ½ of the Cardigan area. This, along with other area evidences, would indicate that the Cardigan gneiss- schist may be a blanket on top of the monzonite, and since the schist and gneiss are generally severely distorted, crinkled and chemically altered, it is probable that the Cardigan could be a relatively thin blanket acting as a roof pendant. The schist-gneiss sometimes is less deformed near the andesite-like dikes that in places, are in clusters of irregular outline and distribution. These andesite-like dikes could possibly be differientates from the Cornelia monzonite mass. The Cardigan gneiss, though locally
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having some schist, is generally believed to have been derived from igneous rocks, probab
quartz dioritic types,
Secondary faulting in two general courses, northeast-southwest and east west generally co be considered pre-mineral since copper oxide minerals are present in several openings where these faults intersect the dikes. Due to a lack of development in depth it is not possible to say whether the mineralization is prevalent between the faults. The dikes themselves where exposed, did not seem to be well mineralized, except along their borders. Some parts of the gneiss and schist on or near the fractures, seemed to be better mineralized. Some deeper exploration would be necessary in order to see if the mineralization is wide spread or merely lenses at favorable intersection loci. In one place on claim 7 a quartz vein borders a dike for a length of 300, or more feet. The quartz ranges from 5-15 feet wide at the surface and is almost pure. The segment of vein "horsetails" at the north end and is cut off by an east west fault on the south end. The quartz stands up a few feet above the cardigan country rock to the east, but has less relief next to the dike rock, or gneiss to the west. It was reportedly estimate to contain about I0,000 tons of better than 90 percent silica. However, only part of thi would be available for surface extraction. On Claim 6 a cut, some 50 feet long, a few fe wide, and possibly 8 feet in depth, shows lenses of fairly good copper, said to run up to 8 percent copper, mostly oxidized, a dollar in gold and silver, and 58.8 percent SiO 2. Lime is less than 1 percent.
The impression was gained that the mineralization as now exposed, is lenticular. Iron oxide (llmonite) of sulphide derivation, is sporadic in distribution and does not seem to be very prevalent any place except in the "ore" lenses. However, whipping out of rugs and minor fracture planes is prevalent and deeper down more limonite might occur, as indicated by conditions in two deeper holes. But, even here, sulphide derived limonite is not widespread. A few specimens of "relief" limonite were seen in the cut on 6 claims indicating that local areas could contain some chalcocite deeper. A small amount of sparse sulphide was seen in places, (mostly chalcopyrite and some pyrite). The impressio. was also gained that, if the Cardigan formation does prove to be a pendant, the inferred deeper cornelia quartz monzonite could be the key to the valve of the deposit. If this rock is found to be generally mineralized, the area could be prospectable, particularly if the mineralization is similar to that in the new cornelia pit area. This is why it is desirable to get a hole down into the monzonite. An angle drilled to the west from east of the quartz vein could, not only prospect the quartz to at least i00 feet deep, but could also prospect for the monzonite that may underlie the cardigan°
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- - ~ ~aw~ey & Hawiey, Assayers and Chemists Division l ~ " 1700 W. Gra~it Rd.. P.O. Box 50106, Tucson, Arizona 85703
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CERTIF ICATE OF A N A L Y S I S
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William L. lehmbeck Arizona Registered Assayer No. 9425 .
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Phelps Dodge Corporation |40 ~est 2950 South S~t t L~ke C l ty t Utah ~ I I 5 ~ t t n . : Dr. J. T. Abbott
cc: Hr. Zsol t F. Rosta co: Hr. R. ~o Ludden
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REMARKS:
Trace an~, ys ts
D A T E R E C ' D :
1/22/75
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O~, T E COMPL,: ;/29/75 750~65
6.
AS#kqCO Great Basin Exploration Division
September 20, 1994
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TO: J.D. Sell Tucson Ottice
Childs Mtn. Prospect Ajo, Arizona
Enclosed is a submittal from Lee Price on the Childs Mountain Prospect, near Ajo, Arizona. Please determine if there is interest in this property and pursue it if you are so inclined. Otherwise, please write Mr. Price a letter declining further interest.
Thanks,
Peter G. Vikre
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GEOCHEM OVERLAY CHILDS MTN PROSPECT AJO 'MINING DISTRICT PIMA CO., ARIZONA
Joe Wilklns April 7, 1993
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GEOLOGIC MAP CHILDS MTN PROSPECT AJO MINING DISTRICT PIMA CO., ARIZONA
J o e W I I k l n s
A P P E N D I X
DRILL HOLE SUMMARIES CHILDS MTN PROSPECT
AJO AREA PIMA COUNTY, ARIZONA
CDH-1
LOCATION: NW 1/4 Sec 8, T.12 S, R.6 W.
LITHOLOGY: (cuttings only saved for select intervals)
0-180 Sneed andesite
A S S A Y S : I n t e r v a l Cu % Au oz/t
No. assays reported.
CDH-2 7
NW 1/4 S e c t , T.12 S, R.6 W. LOCATION:
LITHOLOGY: 0-55 PC Cardigan gneiss
55-75 Rhyolite dike 75-210 PC Cardigan gneiss
TD: 180
TD: 180
ALTERATION:
0-55 55-75 75-90 90-130
130-180
Moderate epidote-chlorite, minor muscovite w/quartz Weak sericite, mod clay alteration, hematite stain Moderate epidote-chlorite, sericite+muscovite Weak epidote-chlorite, stronger quartz-sericite, biotite stable. Weak epidote/~hlorite, with moderate sericite overprint.
MINERALIZATION:
0-55 55-75 75 -90 90-130
130-180
Oxidized, minor CuOx present at 50' Weak to modrate hematite stain replacing pyrite. Oxidized, Hematite replcing py/cpy. weak to moderated pyrite+chalcopyrite, strong magnetite. Traces of sulfides with py>>cpy.
ASSAYS: I n t e r v a l Cu % 50-55 .12
100-105 .17 I05-110 .61
Au oz/t
O
CDH-3 TD: 80
LOCATION: NE 1/4 See 7, T.12 S, R.6 W.
LITHOLOGY: 0-80 Cornelia qm, granodiorite phase
ALTERATION:
0-80 Strong epidote, moderate chlorite-all biotite altered to chlorite. May be weak sericite in feldspars.
MINERALIZATION:
0-80
ASSAYS:
Oxidized with scattered orange-brown hematite on fractures. Rock is shattered.
I n t e r v a l Cu % Au oz/t 40-50 .04 50-60 .02 0.005
C D H - 4
Note: hole not assayed for every interval.
LOCATION: NW 1/4 Sec 7, T.12 S, R.6 W.
LITHOLOGY: 0-100 Alluvium, all volcanic clasts
100-120 Sneed andesite, (brown volcanic rock) 115 Fault gouge
A S S A Y S : I n t e r v a l Cu % Au oz/t
CDH-5
No assays reported.
LOCATION: NW 1/4 Sec 7, T.12 S, R.6 W.
LITHOLOGY: 0-15
15-25 25-45 45-85
TD: 120
85-185
TD: 185
Alluvium dike, intermediate, FG, slightly porphyrytic PC Cardigan gneiss dike, rhyodacite-latite, crowded groundmass, almost a micro-diabasic texture. PC Cardigan gneiss.
ALTERA;FION:
15-25 25-45
45-85
Dike; moderate epidote Oxidized, weak epidote-chlorite Dike, strong epidote-chlorite especially on veins, mafics altered to chlorite. Strong epidote at lower contact.
85-185 Weak epidote-chlorite, streaky quanz-sericite, biotite s table .
M I N E R A L I Z A T I O N :
15-25 25-45
45-85
85-185
Oxidized Oxidized, Weak to very weak hematite stain replacing pyri te>>cpy. Oxidized, veins & fault-veins with strong hematite replacing py>>cpy. Strong hematite after pyrite/cpy at lower contact. Magnetite. Very low sulfide content, trace py>>cpy at 175-185. Magne t i t e .
A S S A Y S : I n t e r v a l Cu % Au oz/t Mo % 180-185 .03 0.01 0.003
C D H - 6 TD: 80
LOCATION: NE 1/4 See 7, T.12 S, R.6 W.
LITHOLOGY: , • 0-25 Alluvium, all volcanic clasts 25-80 Sneed andesite, (brown volcanic rock)
A S S A Y S : I n t e r v a l Cu % Au oz/t
No assays reported.
CDH-7 TD: 80
LOCATION: Dunn's Well, center See 8, T.12 S, R.6 W.
LITHOLOGY: 0-10 A l l u v i u m
10-80 Cornelia qm, biotite granodiorite phase
A L T E R A T I O N :
10-80 Weak to moderate epidote, moderate chlorite-all biotite altered to chlorite. May be weak sericite in feldspars.
M I N E R A L I Z A T I O N :
0-80 Minor hypogene hematite and brown carbonate, magnetite. Rock is shattered.
ASSAYS: I n t e r v a l Note: hole not assayed.
Cu % Au oz/t
CDH-8 TD: 160
LOCATION: NW 1/4 Sec- 8, T.12 S, R.6 W., 100 feet west of CDH-2.
LITHOLOGY:
0-60 60-70 70-85 85-160
PC Cardigan gneiss Fault zone, Cardigan gneiss with dike slices, gouge at 70'. Intermediate composition dike PC Cardigan gneiss
ALTERATION:
0-40 40-70 70-85 85-120
120-160
Weak to moderate epidote-chlorite Weak epidote-chlorite with streaky sericite overprint. Moderate epidote-chlorite. Weak to moderate epidote-chlorite, streaky sericite o v e r p r i n t . Coarse-grained muscovite-sericite and biotite stable. Increasing chlorite 145-160.
MINERALIZATION:
0-40 40-45 45-55 55-70 70-85 85-90 90-120
120-160
Oxidized, weak hematite stain after py/cpy. Very fine grained py, cpy with visible gold. Oxidized, weak hematite replacing py/cpy. Weak pyrite+chalcopyrite in gneiss. Minor pyrite in dike. No visible sulfides. Strong sulfides, pyrite+chalcopyrite and tr galena at 90'. T r a c e sulfides, weak magnetite.
A S S A Y S : I n t e r v a l Cu % Au oz/t
Note: no assay intervals.
CDH-9 TD: 160
LOCATION: NW 1/4 Sec 8, T.12 S, R.6 W., 100 feet east of CDH-2.
LITHOLOGY:
0-20 20-80 80-105
105-125 125-160
Al luv ium PC Cardigan gneiss with faulted dike slices. Rhyolite dike PC Cardigan gneiss Dike, intermediate composition.
ALTERATION:
20-50
50-85 85-105
105-120 120-160
Weak to moderate epidote-chlorite, minor sericite o v e r p r i n t . Weak epidote-chlorite with stronger sericite overprint. Oxidized, weak clay+sericite. Muscovite+biotite stable. Moderate epidote-chlorite, epidote vein-veinlets present.
MINERALIZATION:
20-50 50-85 85-105
105-115 115-120 120-160
Oxidized, weak hematite stain after py/cpy. Traces of py/cpy, magnetite. Oxidized, weak to moderate hematite. Trace pyri te+chalcopyri te in gneiss. Contact: strong py+cpy, magnetite. Trace sulfides, magnetite common.
ASSAYS: I n t e r v a l Cu % 145-160 0.02
Note: not all intervals assayed.
Au oz/t
CDH-10 TD: 200
LOCATION: NW 1/4 Sec 7, T.12 S, R.6 W., 25' east of CDH-5
LITHOLOGY 0-20
20-80 80-85 85-200
A l l u v i u m PC Cardigan gneiss dike, mafic, VFG. PC Cardigan gneiss
ALTERATION:
20-80 80-85 85-200
Moderate epidote-chlorite with streaky sericite overprint. Oxidized, weak epidote-chlorite Weak to moderate epidote-chlorite, streaky quartz-sericite. at 200' very dark chlorite with epidote and pyrite.
M I N E R A L I Z A T I O N :
20-80
80-85 85-200
Oxidized, weak to very weak hematite stain replacing p y r i t e / c p y . No visible sulfides. Trace pyrite-chalcopyrite, visible sulfide at 95-105, 135, 150, and 200'.
ASSAYS: I n t e r v a l Cu ppm Au oz/t Mo % 130-165 85 (avg)
Note: hole not assayed for every interval.
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IN
/ Chemex Labs,Inc. Analyllcal Chemists Geochemlsl,= Reglslered A
994 West Glendale Ave., Suite 7, Sparks, Nevada, U.S.A. 89431 PHONE: 702-356-5395
b KENNECOTI" EXPLORATION CO.
P.O. BOX 11248 SALT LAKE CITY, UTAH 84147
Project : CHILDS MTN AZ. Comments: AT rN :L INUS KEATINGCC:JOE WILKINS
I CERT IF ICATE OF ANALYSIS
Page N u r ~ r : l Tolal Pa / : ! Cert i l ical lW~te: 30-MAR 93 Invoice No, : 19312279 P.O. Number : Account : GJV
A9312279
PREP
SAMPLE CODE ,,
4 6 5 5 8 c 2 0 5 2 2 6 4 6 5 5 9 C 2 0 5 2 2 6 4 6 5 6 0 c 2 0 5 2 2 6 46561C 205 226 46s62c 205 226 4 6 5 6 3 e 2os ' 2 2 " 46564c 2 o s 2 2 6 46s~sc 20s 226 46s~6c 2 o 5 2 2 6 4 6 s 6 w 2 o s 2 2 6
46568C 205 226 4 6 5 6 9 C 2 0 5 2 2 6
Au ppb FA+AA
< 5 4 0
< 5 < 5 < 5
< 5 2 0
< 5 < 5 < 5
< 5 < 5
Ag ppm
Aqua R
< 0 . 2 0 . 3
< 0 . 2 < 0 . 2 < 0 . 2
< 0 . 2 < 0 . 2
0 . 2 < 0 . 2 < 0 . 2
< 0 . 2 < 0 . 2
AB
p p m
1 1 1 2 4
1 < 1
1 1 1
< 1 1
.oCB
CU ppm
3800 1 4 2 8
> 1 0 0 0 0 > 1 0 0 0 0
2 0 0 1 2 5 23 18 6
9 27
M o ppm m , i
2 < 1
1 5 1
< 1 < 1 < 1 < 1 < 1
< 1 < i
H~ p p b
10 10 10 10 10
10 10 10 JO 10
10 J.O
Pb
p p m
< 1 < 1 < 1 < 1 < 1
< 1 < 1 < 1 < 1 < 1
< 1 < 1
/
CERTIFICATION:
Sb ppm
0 . 4 0 . 4 0 . 4 , 1 . 2 0 . 8
0 ' 4 0 . 4 0 . 4 , 0 . 4 0 . 6
0 . 4 0 . 2
Zn BI ppm ppm , • , |
31 3 3 , 3 2 1 3 4 2 2
, | H
2 9 2 5 2 9 3 9 4 6
!
7 0 30
0.1 0.8 0.2 0.9
< 0 . 1
<0.1 0.3 0.1 0.2 0.i
<0.1 0.2
j Chemex Labs Inc.
'Analyllcal Chemlsls Geochemlsls ' Reglslered Assayers
994 Wesl Glendale Avg., Suile 7, Sparks, Nevada, U.S.A. 8943|
)~: KENNECOI-r EXPLORATION CO.
P~O. BOX ! 1248 SALT LAKE CITY, UTAH 84147
Project : CHILDS MTN AZ. Comments: ATTN:LINUS KEATING CC:JOE WILKINS
P a g e ~ b e r :1 Tota l I q p ~ : 1 Cer t i f icate Dale: 30 MAR 93 Invoice No. :19312280 P.O. Number • Accoun t : GJV
CERTIFICATE OF ANALYSIS A9312280
SAMPLE ~
)H-Y
OH - e
A B p p m
46570C /~'.g-/~ O ' 46571C 160-/61 4 6 5 7 2 C 1 7 0 - /7-4" 46573c /7/-/80
46575C 80 -- 8~ 46576C 9 o - 9 ~ 4 6 5 7 7 C 3 ~ - 4 o 4657eC $ 0 - 4 ~ 46579C 9 0 - 9 ~
4 6 5 e o c ~ 5 ~ / ~ 4 6 5 8 1 C I 0 0 - ~ 4 6 5 8 2 C I 0 ~ - ! 1 0 4 6 5 8 3 C / / G - i l a 46584C /2~-~0
PREP Au ppb Ag ppm
CODE FA+AA Aqua R i
2 0 5 2 2 6 6 0 < 0 . 2 2 0 5 2 2 6 • 5 < 0 . 2 2 0 5 2 2 6 < S < 0 . 2 2 0 5 2 2 6 < 5 < 0 . 2 2 0 5 2 2 6 < 5 < 0 . 2
2 0 5 2 2 6 < 5 < 0 . 2 2 0 ~ 2 2 6 • 5 < 0 . 2 2 0 5 2 2 6 5 < 0 . 2 2 0 5 2 2 6 5 0 1 . 0 2 0 5 2 2 6 1 0 < 0 . 2
2 0 5 2 2 6 < 5 0 . 2 2 0 ~ 2 2 6 • 5 • 0 . 2 2 0 E 2 2 6 • 5 < 0 . 2 2 0 ~ 2 2 6 < 5 < 0 . 2 2 0 ~ 2 2 6 • 5 < 0 . 2
46585C 3~"~ 0 20E 226 46586C ~d-45" 20. c 226 46587C ~I-S0 20... 226 4658BC ( 8 ~ " 9 0 20E 226 46589C 'L,I,J j9~-9~ 2 o s 226
%
] 95"/00,. ..... 2 0 5 2 2 6 4 6 5 9 0 C 4 6 5 9 1 C ~/#O'/D~ 2 0 5 2 2 6 4 6 5 9 2 C / I 0"/1"~ 2 0 5 2 2 6 4 6 5 9 3 C 11~'120 2 0 5 2 2 6 46594C 12.0-12~ 205 2 2 6
46595C /25"l~ 205 226 46596C /.~ ~9"/35 205 226 46597C / 35'°/~9 205 2 2 6
CU p p m
1 < 1 < 1 < 1 < 1
< 1 1 1 2
< 1
1 1
< 1 < 1 < 1
Mo ppm
3 4 2 2
9 1 4 4
8
1 2 8
1 3 2 9e 1 7
3 8 0 0 2 2 38 18
8
H g p p b
< 1 < 1
1 2
1 :1 1
• 1 < 1 • " ~ "
< 1 < 1 < 1 < 1
Pb
ppm
1 0 1 0 1 0 1 0 1 0
16 .q
l O 1 0 1 0
1 0 1 0 1 0 1 0 1 0
Sb
ppm
< 1 < 1 < 1
< 1
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< 1 < 1 • 1 • 1
1
ZII
ppm
0 . 4 , 0 . 4 0 . 2 0 . 4 0 . 4
0 . 2 0 . 4 0 . 4 0 . 4 0 . 4
0 ~ 2 0 . 2 0 . 4 0 . 4
< 0 . 2
26 200 21 26 72
62 27 42 22 21
24, 17 40 40 9
5 5 5 4 4 5 2 3
Bi
ppm
1.8 0.8 0.2 0.5 0.5
0 . 2 1 . 0 0 . 2 0 . 9 0 . 2
o.i 0.6 0.2 0.I 0.5
1 0 < 0 . 2 < 5 < 0 . 2 < 5 < 0 . 2 < 5 < 0 . 2 < S 0 . 5
< 5 < 0 . 2 • 5 • 0 . 2 < 5 < 0 . 2 < 5 < 0 . 2 io 3.0
• 5 < 0 . 2 • 5 < 0.2 < 5 3.1
1'1 1 1 1
< 1
< 1" < 1
1 < 1
1
< 1 1 1
" /2 5
3 0 < 1
3
3 6
24
61 6 B
<i < 1
1 2 1
< 1 < 1 • 1 • 1
1
1 0 < 1 1 0 • 1 1 0 • 1 1 0 • 1 1 0 • 1
1 0 < i 1 0 < 1 1 0 • 1 10 < 1 1 0 < 1
10 < 1 10 • 1 1 0 < 1
0 . 2 0 . 2 0 . 4 0 . 2 0 . 4
0 . 2 0 . 4 0 . 4 . 0 . 4 , 0 . 2
0 . 4 . 0 . 2 0 . 2
7 7
47 22 75 52 49
sii 70 58
< 0 . i < 0 . 1 < 0 . 1
0 . 1 0 . 2
< 0 . 1 0 . i 0 . 2 0 . 2 0 . 7
< o~i 6 . 2 0 . 4
' . -~_
CERTIFICATION:
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Chemex Labs Inc. Analytical Chemlsls Geochemlsls Rogl.~leredAssayms
994 West Glendale Ave., Suite "7, Sparks , Nevada, U.S.A. 89431 P H O N E : 702-356-5395
PREP Au ppb SAMPLE CODE FA+AA
49169 c 255 295 75 49170 c 255 295 • 5 49171 C 255 295 20 49172 C ' 255 295 • 5 49173 C 255 295 • 5
49174 C ' 255 2 9 5 • 5 49175 C 255 295 • 5 49176 C 255 295 • 5 49177 C 255 295 • 5 49170 C 255 295 • 5
49179 C 255 295 • 5 49180 C -. 255 295 • 5 49181 C 255 295 < 5 4 9 1 8 2 ' C 255 295 • 5 49183 C 255 295 • 5
[ . 49ze4 c " 2 ~ 5 295 • 5 49185 C 255 295 < 5 49186 C 255 295 • 5 49187 C 255 295 < 5 49188 C 255 295 < 5
49189 C 255 295 • 5 49190 C 255 295 • 5 49191 c 255 295 • 5 49192 c 255 295 • 5 49193 C 255 295 • 5
49194 C 255 295 • 5 49195 C 255 295" < 5 49196 C 255 295 • 5 49197 C 255 295 • 5 49198 C 255 295 • 5
Ag ppm
Aqua R
0.6 • 0 . 2 • 0 , 2 < 0 . 2 < 0 . 2
< 0 . 2 • 0 . 2 < 0 . 2 < 0 . 2 < 0 . 2
t
A . Cu
ppm ppm I
9 960 3 19 3 09 1 6
< 1 6
< 1 t ' ' i 5 35
< 1 7 • 1 2
1 4
0 . 2 < 1 5 0 . 2 < 1 i 3 0 . 2 < 1 4 0 . 2 3 28 0 , 2 1 ! 103
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14 9
13:3 58 23
310 165
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18 3 3
9 6
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4 • I
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To: K E N N E C O I - I E X P L O R A T I O N CO.
II P.O. BOX 11248 • SALT LAKE CITY, UTAH
84147
Project : SR Comments : ATTN: L INUS KEATING
Page Number :1 To ta l Pagp,2 : 1 C e r t i l i c a l i l t e : 13.JUN-93 I n v o i c e ~ :19315331 P.O, Number • Accoun t : GJV
C E R T I F I C A T E O F A N A L Y S I S A 9 3 1 5 3 3 1
Hg
ppb Pb Sb Zn BI Ba ppm ppm ppm ppm ppm
I l .
30 2350 0 . 4 102 2 .5 480 2 0 2 0 . 4 16 0 .3 1920 10 63 0 . 2 88 0 . 9 2700 10 • 1 0 . 4 44 < 0 .1 90 10 < 1 0 . 2 29 • 0 . 1 90
I I 10 • 1 • 0 . 2 7 • 0 . 1 : 200 10 17 0 . 2 65 < 0 .1 1380 10 26 0 . 2 29 < 0 .1 280 1 0 9 0 . 2 35 < 0 .1 320 10 17 0 . 8 14 • 0 . 1 / 10
i I 10 < 1 < 0 . 2 10 < 0 .1 640 10 0 0 . 2 28 • 0 . 1 280 10 < 1 I 0 . 2 49 < 0 .1 500 10 3 i 0 . 4 144 < 0 .1 1620 30 4 I 0 . 4 33 1 .4 500
| . . . . . . . . I 40 22 t < 0.2 Si o.9 lSOO 20 2 5 1 0 . 2 32 0 .5 1580 20 7 0 . 4 55 0 .1 1640 10 11 i 0 . 4 121 1 .8 1800 10 4 0 . 2 153 1 .4 1920
I I 10 14 0 . 4 20 0,7 1900 10 • 1 0 . 6 10 0 .1 70 10 5 0.,4 31 0 .5 640 10 < 1 0 . 2 24 0 .2 4500 10 < 1 0 . 2 13 0 .3 ~ 5000
! I 70 < 1 0 . 4 10 2 .6 164o 10 < 1 0 . 2 14 o .1 940 20 6 0 . 2 49 0 .1 1640 10 4 < 0 . 2 26 • 0 .1 1200 1,0 • 1 < 0 . 2 41 0 .1 320
, ~ , ~a~ • °~
CERTIFICATION:
• . . . . . . ..
Chemex Labs Inc. Annlylical Chernl.,;I,~ ' Geochernlsls ' Registered Assayms 994 West Glendale Ave., Suite 7, Sparks Nevada, U.S.A. 89431 PHONE: 702-356-5395
KENNECOTT EXPLORATION CO.
P.O. BOX '11248 SAt.T LAKE CITY, UfAII 84147
Project : Comments: ATTN'.LINUS KEATING
Totnl Cedilic i ~ Invoice No P.O. Number Account
CERTIFICATE OF ANALYSIS A9315845
PREP
CODE Au p p b FA+AA SAMPLE
49199 c 255 295 < "5 49200 c 255 295 < 5
, o
Ag ppm
Aqua R
< 0.2 < 0.2
AB ppm
Mo p p m
Hg
p p b
550 300
Pb
ppm
< I 1
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24 13
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m: 25.JUN '~3 :19315845
: GJV
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35 9
\ ~993 13:37 FROM BLM - PHOENIX DISTRICT TO 860262992g i P.g2 \
SUGGESTED FOR.MAT:
Urdt~d State~ Departmeat of this Tnt~rior
Bm'~au of Laad Msaag~m~nt (BLM) 2015 West D~r Valley Road
phoenix. AZ 85O27 (6O2) 780-8O90
NOTICE of operations proposed tmd~ the 43 CFR 380¢; surface management ~ l a t i o n s . (operztioas of 5 acres or ies~ surface d i s ~ c e ) .
In.~tructian.s:. Complete the following is as much detail as possible. Additionat.shek~., may be used if necessary. Us~ maps or sk~.,:h~s aad/or photographs where appro!~am. A review of the 43 CFR 3809 rrgu|atioms should b¢ co~duct~i prior to your sabazi~oa of this Not i~ or Noti~ Ameadmeat to this office.
Ciaim.~t Jn formation: Nsm.__~e Address Telephone
Operator Information: Nam____~
Is Claimam awar~ of your proposed activities? (Check 0~0) Yes
Te|ephone
<7>oi- ~ zz- '7~, '+ N O
i C I a i m Na~e and BLM Serial No. (AM_C #'S) ~lJ~ V GtA,'~ ~ ~ ( 3~-ODr %~
. / ~ i ,J
U.S.G.S. Topographic Map ('-Ni'C,-OS A/l-/"/q: ,4-~
F~,oM ~ 17. S' I ~ ._g to- T/~I/9,3
pro~...%"~J Ovemdons: D~ccribe the ¢nti.m proposed operation, including all surface disturbing acdvities, i.e., toad con.strucuon or upgradLag. driHLag, trenching, ba~:k.5o~ or bulldozer exploration, m/.u~g, was~ disposal, installation of teta~orary s t~c~r~ . impoundments, hoidhag maks, processing equipment, et¢. List all mecha~/z~ eas~ moving equipment to I:~ used during the oF:ration aad list say explosives or cbem/c~!s to b~ used. Ca[cu[ate the, total a ,c'qeaee pro, posed for disrarba~ce fl acre -- :3. ~/60 sa. if'l" (Additional sh~ts may b~ ~ if necessary.)
A
w
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N(C~'SqAP--~. I ~ L E % W,LL- 6~" DC~i LL~'9 O~ E'XC 9~,0(? I~0¢~OS, 4
q-~ # T~-A6V-S. ~ ' W , ~ D~V'~I< ~0?LL ~ :Poo. / ~'I~'~iMUM
<5% Teem ~Ce~T CW-m 5~m.. 8~ ~-~rKe~ ~OTTO DiS1"-0~,D
I J
/
/
Y pescdbe An~Existin~ Surface Di,ct'urb:mcc, Roads_a.~d Str~ctu~s (i.e., mine and mill fa=ilitie,s, workings, miliags, dump ar~a,
~ . ) . You may wish to dc~currmnt dismrba.nce existing prior ~o begln-~-g work on your operation (ia ~he form of pho~:)g.raphe, s'urfaee maps, or testimony) in order to rv,,duce your reclamation liability:
Nv~{~ov5 Out:> ROA-o..s, Hxq T#~.~t<_s, d D~i~_...~..cE5 ~:t ~1m
S ~ , / om ~ ~.-rr,cc,.f-~-b :s,"3' - r ~ . o gH~-e-r : .
Pmc.o,md_R~tamadon: De,,~ribe your proposed reclamation procedures (i.=.. recoatouring, backfilling excavations. ~moval of stnmtur~ ~ d equipment+ rapiacmg s~ockpited topsoil, etc.).
(T-~S Vt);u-_ BE U.L.eAtO~-b OF
vqtuc NoT" ~e-~]eCeSSA&~. ...3
~s &mt"i-'~- qi.~,~r....Scz --- ~,~vU~b),,,.)(-_.,....-
I will complete all necessary reclamation of are.as disturbed during th,' course of my operation.¢ to the standards described m 43 C'vC'vC'vC'vC'vC'vCFR 3809. l-3(d) and tea,tunable meas '~res will be t.~kcn to prevent urm~ce.s,~ry or undue degradation of the Federal to.rids durra t- operation. ~ i
" ( ' i ~ , , .
NOTICE TO OPERATORS:
I. You must notify the BLM at le~t 15 calemcba" clays prior to commencing o,oer:llions of 5 acres or le~s on fILM l~d. "Fh= BLM has 15 days to review the above tarot'motion.
2. A a o d ~ must comply with the 43 CFR 3809 ~gulation.~. Completlng all .¢ectior~ of this ~agges~i format should satisfy thi: requlr~m~at. Incomplete noti=es may be renamed for more reformation.
3. It is BL.M's policy to perform a minimum of on¢ comphanc~ in.~peedon per year on each no:ice submitted by all operator.
4. A~y ctz.-mg~ to the proposed operations require Me ~brruttal of an amendment t0 this ootice.
Page 2 of " . . k
TCTAL P.03
' :iii.~i~.~ ~...., i.~ii~ ;,.i~.~i~i! i! ~ ,
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: ¢ . I I I I A C y ,S ' I 'ANI )AI I I )q ~VER, COLORADO 80225 .092
~21
QUADRANGLE LOCATION
! 3 P m [ 2 Midway SW
/ ~ 1 ] l~adman Gap 4 Growler Peak
4 / ~ I~ ,~Nora, . . . . . . • - ' - ' - 4 - - - - I 6 l 'mpora l p ~
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ADJOINING ?.5' QUADRANGLE NAM.I~
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R O A D LEGEND
Improved Road Unimproved Hoad Trail . . . . . . . . . . . . . . . . . . . .
( ~ [ n t e r s t a t e R o u t e ~ U . S . I ~ o u t e 0 S t a t e |~ouLe
CIIIi,I)S MOUNTAIN, AI~.IZUNA PROVISIONAL EI)ITION 19~Y0
32112-DS-TF-024
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REPORT : SP 0 2 3 9 2 3 Page 2 of &
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REPORT : SP 023923 Page 5 of 6
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F I
.. - . . . .. • ! ". .... .:... -,~.t : "",~.~.. .''. .... ~',- ~:~ 4,, :,~..'
Limerick g Toudst Information,
The Granary, Michael St., Umedck. Tel: (061) 317522. Youth hostel •
Places of importance and interest are: Aer Lingus office, Bus and Railway Station; City Hall; Custom House; G.P.O.; King John's Castle; Library; Art Gallery;, SL John's Cathedral; Town Ha/I; Treaty Stone; Museum; Good Shepherd Convent; Belltable Arts Centre. Dating from 922, Limerick is Ireland's third largest city. St. Mary's Cathedral is outstanding, with interesting oak carvings. King John's Castle is worth seeing, along with the Old Church, St. John's Cathedral and the Treaty Stone of 1691. The restored John's Square houses the Limerick Museum. Another attraction is the Granary complex, containing the Tourist Information Office. Limerick, famous for its lace, has a wide choice of shopping and entertainment.
Waterford g ToudM Information,
41 The Quay. Tel: (051) 75788.
Places of importance and interest are: Bus station; Christ Church Cathedral; G.P.O.; Municipal library and Art Gallery; Railway Station; Reginald's Tower; Waterford Glass Factory 3km (2 miles) from city centre.
Waterford city, of ninth-century Danish origin, is situated on the banks of the River Suir. Reginald'~ Tower, built by the Danes in 1003, houses an interesting historical collection of local interest. SL Olaf's Church dates from the Viking era. The French Church (Grey Friars) is of Franciscan origin, while Black Friars is the ruins of a Dominican foundation. The eighteenth-century Mall is near the Court House (1849). Also of note are the cathedrals, Christ Church and Holy Trinity. Waterford, famous worldwide for its glassmaking, hosts the Festival of Light Opera each September.
Boyne Valley The River Boyne flows through an area rich in ancient monuments and historical associations. Sites well worth a visit are: Monasterboice, famous for its high crosses; Drogheda, an important mediaeval town; the Hill of Slane, where SL Patrick lit the Paschal Fire in A.D.433; Brugh na Bbinne - - the Passage Grave cemetery of Knowth, Dowth and Newgrange; the Hill of Tara where Irish High Kings lived; Trim, with its splendid Norman castle and other buildings of the Middle Ages; Navan, an old market centre, as well as Duleek and Kells.
On July 1, 1690, the forces of William of Orange defeated the ~ r m v n f . I R m ~ II ~ f t h= ~ivc=r
Rosslare Harbour Youth heltei •
Car and passenger ferries from Lc Havre and Cherbourg operated b~ Irish Ferries, Dublin. Tel: (01) 610511, from Fishguard operated by Sealink, Dublin 1. Tel: (01) 808844 and from Pembroke by B+I Une, Dublin. Tel: 778271.
K[.R
DEC 1 3 1956 TUCSON OFFICE, Dec. 13, 1956
/ /
FILE MEMORANDUM
TRI, I~D..-GOPP_E_R VALLEY CLAIMS, AJO ~:~.~ In'.,
Mr. W. E. Iseman, Box 4335, University Station, Tucson ~ave me the following information on drilling in which he has been interested. This work has been done by a partner- ship under the name TRI, Ltd.,.conslstlng of Harry O. Tennlson, George T. Rekerdre and W.E.Iseman. Thls group acquired the Copper Valley claims owned by J.C. Kern, located on the south slde of Childs Mountain about 3-3/4 miles due west of Phelps Dodge open plt. Nlne holes were drilled by McCllntock wlth the following results:
Three holes entered mlnerallzstlon at 28 feet from surface and continued through 18 feet in 1.7% Cu, the balance of the holes to 350 feet prac~Ically barren .
Slx other holes drilled to depth of 485 to 525 feet were practically barren of mineralization.
Thls partnership has acquired the Pemberton claims west of Banner Mining Compan&"s Mineral Hill Mine and north of the Vulcan property. L.G. Marshall, consulting engineer of Tucson, has been doing geophysical work on the Pemberton claims and as a result of hls survey TRI is planning to drill.
cc:TASnedden ERlchard /
REED F. WELCH
~ ~ ~ ~ / ~ ~ ¢ ~ , ~ ~ ~ ~ .
, ,
KEEP THIS ON TOP
Subject: AJO DISTRICT
NEW CORNELIA NINE Ajo District Pima County, Arizona
Sec. 26 & 27, T12S, R6W AJO 15 Hin. QUAD Ajo AMS
Originally Ajo Consolidated Copper Co. 1917 Bought by New Cornelia Co. 1929 Calumet & Arizona Mining Co. Con. With New Cornelia
Later acquired by Phelps Dodge
KEEP THIS ON TOP
Subject: AJO DISTRICT
CARDIGAN COPPER CO. Ajo District Pima County, Arizona
Sec. 28, TI2S, R6W AJO 15 MIn. QUAD Ajo AMS
7
CONDENSED REPORT ON CARDIGAN COPPER PROPERTY,
Pin~ County, Arizona.
~ m o D e l o t . ~ u l ~
Hunter Williams, Sa..~ Francisco, Cal. " l ~ ' ~ Q 6 o t o i . ~ . . . O I , i = I O ' 4 0 0 e O q ' Q O Q ~ Q ~ e * ~ O Q O . o i . . .
This property comprised 9 surveyed m i n i n g claims
located about ~913. The title is clear and fro. from any
encumbrance. Five of these claims run in a Northerly and
Southerly direction a n d four in an Easterly and "'~ ~ ,~ e~ t srly
direction. This property is about two miles in a North
Westerly direction from the town of Ajo at which point is a
Railroad which connects ";,ith the main line of the Southern
Pacific R.R; at Gils Bend, a distance of 45 miles from Ajo.
Very good wagon and auto roads connect Lhis property .',~ith Ajo.
SHAFTS, DEVELOPMENT, etc.
$50,000.00 haw ~, been spent in development work on
this property by the pre~sent o~';ners (and much more by previous
o~:ners) The development consists of shafts,exits, top stopes,etc.
Ther,~ is an iron dyke carrying silver and copper
val~es on this property and the formations are Rhyolite on the
East and South East of this property, and Schist on the West and
North West section. At the South en~ of the Claim (Iron Reef)
is a 30 foofl shaft in which will be found a one hundred foot z
drift. Near here are shafts 30, 40 and 70 feet deep.
In the gulch a short distance Northerly from these f
shafts 400 tons of low grade commercial copper ores were mined
from a pit during the Sun,met of 1917. About !00 feet West of
this pit ~,ill be found a 50 foot shsft ~hich was put down by
leasees during i~o16 & i~lY, good copper silver ores were mined ?nd
shipp~d from this shaft by the le~:sers.
North of this shaft about. 250 fe~t is Fit No. 2
from which several carloads of seed Copper Sil,~er ores were mined
and shipped during 19iY, thesesev4~icars averaged about $700.00
(dollar@ per car profit to the shippers. 40 feet North of this
pit .~o. 2 is a 40 foot shaft sunk in good ore ~carrying copper
and silver values. ~00 feet North of this shaft is a iO0 foot
shaft where Copper, Silver ores will be found, and to the North
froln this shaft for over i,000 f~.t many cuts and prospect shafts
~ill be found with good showings. On the Iron Dyke near Pit No. 1
will be found a ~0 foot shaft it cuts into iron and no further
work has been done thee, I00 fe~t east of this shaft is another
~0 foot shaft sunk on a showing of copper silver ore. 300 feet
east of this shaft is a 70 foot shaft put down by lease,s ~n
good ore copper glance shows freely in this a~e water raises
within 40 feet of the top~, this shaft is equipped ~ith a
whim etc. h
150 fe~t east of this shaft is a shaft down ~50
feet with big quantities of copper silver ores ready to be
blocked and stoped.
Thereare many other shafts, cuts and pits on this
property in all of which will be found cop~:ers on the iron ~eef
and R~mbler claims will be found a great mass of disseminated
cop;ors in the mangonites, a tunnel about gO feet in length has
begn driven in this mass of ore.
This mass is very similar in character and has
the sawn9 characteristics as the ma~ of dissiminated coppers
no~'~ being mined by the New Cornelia Copper Co. at their pit which
is about 5/4 of a mile east of this property, the only exception
~eing that theSilver values ~iI be found higher here than in the
Ne~ Cornelia deposit as high as 51 ozs. in silver has been obtained
from samples taken in a small ahaft on the Z,~st side of this
deposit.
CONCLUSIONS AND REMARKS.
Abundance of ,:ater can be obtained at 50 feet on
this property, this ~ter cannot ba used for domestic purpos~s
on account of its mineral contents (Arsenic sulphur, copper,etc.)
but good water for domestic purposes can be obtained at 40 feet
a~out 3/4 of a mile N.West of these holdings. Her, ever, this
water on the property can be used for Ste~:~n machinery as the
writer used it with satisfactory results for his machinery ~:hen
~vorking this property during 1916 and 1917 at that tlme he hag
occlusion to use steam hoists in two places.
This property is a very old and much developed
property. It ~as -~,orked for years durin~ the old Ajo boom days
for the rich silver ores that were m~ned in those days,many
of these very rich stringers of rich silver ores are now being
found by the Ne~ Cornelia Copper Co. in the course of their
operations with ste~n shovels on their big deposit. Evidence
of this will be found &n this property and one of the present
owners mined with his father when a boy on this property. It
is impassible to estimate the amount of ores and the value of
the same that has at tim~s been taken from this property by the.
@
different owners and l~sers during th3 last thirty years.
The ore showings and the ~orkings speak for them-
o~Jlve'~. The shafts have been put do~n in SUCh a ~Tay that the
proplrty has ~:~ithout a doubt been ~::e, ll exploited and sho~'Js ,~Jith-
out question that there is on this property a big deposit of
~ood Co~er Silver Ore and :~ith the proper machinery and the
corr}ct method of extraction together ~'~ith the good facilities
that exist here for mining, no reason can exist ~'~hy this the
C~rdigan property should not ~ank ~ith its sister property~ the
ne~.~ Cornelia or any o gh@r great producer of America.
Yours truly,
A. W. Bramwell, E.~. Dated :April 12th,19!9.
EXTRACT ~ROM U. S. GOVERNMENT E '~n ....
Prof. Raymond's Report to the U.S. Government (authorized
by Congress) on the mineral resources of Arizona, of the section
of the State in ~'~hich the Cardigan Copper yropcrtie~ are located,
the Prof. said in ~art,-- "I have traveled from the Southern
boundary of Arizona ~orth to the 'Gunsight', and I have found
the mountains threaded ~ith veins~ rich in g~id~ silver and
co~p .... r, far beyond anything that I have ever s'~en elsewhere."
The statement is conclusive that the eminent Geologist was
thrilled at the wonderful mineral resources of this section of
Arizona.
-4-
~ i I
Tucson, ~rizona.
Denver, July 25th 1917
Cardigan Copper, Ajo.
Dear Sir:- Today a ~ Winchester here presented this proposition, stating that he
wis~ed to give option on 400,000 shares of the Cardigan Copper Co for ~I00,000,
there being 700,000 shares issued.
Payments involved an i~nediate cash installment of ~5000 - before exam- ination, s~ne to be returned if the property was not finally taken, or 25,000 sh~res given in its stead - at the option of the Copper Co- Other payments were strung along to April 1st 1918,to complete the $!00,000.
They are shipping about a car a month which has lately run down to about 3% copper with 8 oz silver - so they seem to be ~falling down on their production.
I told ~Lr VIinchester - through one of our men here - that we were not interested, and am merely passing this on to you for ~ your information.
Yours v e r y t y ,
1
•7
~ AJO D~S~OT, Arlzona.
Tuoson~ Arizona, April 10, 1916.
M~. H. A. GUess, Ma~ing Diremtor, Mining Dep't.,
A.S.& R.00.,120 Broadway, N~w Y o r ~
Dear Slr:
A~pli~ing ~ letter of the DE inst~ut, ~u this oon~eotlon, and with speoial re£eren~e to tl~ Barton ~t~t~hel proposition, I will quote the following ~ologloal fin~s of LL =. Joral~mon, Geologist of the 3. ~ A., ;~r~ item a paper prepared by him and submitted at the Salt Lake Meetimg of the American Znstitute of ~. E., in 191@:
~e says:
"~ept for a oongiomerate, the region~! rocks are i~mcus. The ~rliest for~atio~ exposed oonsists o f rlAvolite breaeia and tuff. An intrusion of mon- zonlte porphyry ~uts and ~piift~ the rh~llto. ~s ~orl~y, in the character of its minerals and its c r y s t a l l i z a t i o n , v~ries a good deal locally. Following the m~nzonite, are ~ikes of diorite oz' dlabase probabl~ allied with the Tertla~ flows ~hich cover much of the surrounding desert ~egion............The diorite and dlabas@ dikes euttlmg bo th monzonlte and rhyolite, seem~ to ~mve little e f f e o t on s t~uo~u~e o~ minsralizati~n."
I would sa~ that the ~rospe~ts presented by ~tcahel's prop~ty con- s i s t e d o f what a~e known a s s a y e r s and Oardegan Groups, ].ylm~. tO the south and west o f the main O. & A. h o l d i n g s , and suoh mine ra l as they p r e s e n t i s c o n f i n e d exmlus ive l~ t o o e ~ t a i n l i t t l e f r ~ t u r e s ln~L~abase dikes d e s c r i b e d in Mr. J o r a l e m o n ' s remarks . T~ey a~e t h e r e f o r e o f v e r y minor importanoe and do no t appear to me to be worth an~ s e r i o u s o o n s i d a r a t i a n whatsoever ,
The Copper Mountain 1EOpOSltlon, l y i n g to the south of ~ AJO, whioh I a l s o r e f e r r e d to in m~ l e t t e r o f A p r i l 2d , o o n s t s t e o£ an i s o l a t e d knob r i s i n g out of a plain of alluvial wash, and havlng a length of, say 600 ft. by width Of ZOO fit maximum~ and rising to a height Of, sa~ 150 ft. above the plain. This knob Is ve~ st~l~ sheared and fissured, and in t he strcmgest bamding of this s h e a r i n g a oons idorab le an~unt Of c o p p e r s t a i n i s p r e s e n t e d over a w i d t h of from 8 to 25 ft. for the whole length of the hill. While the oopper-staAned exposure i s l i m i t e d to t h i s ~ f l s e u r e - s y s t e n ~ ~ t I am i n c l i n e d to t h i n k t h a t f u r t h e r mineral will be found in the Other parallel shearlzM~, the these do not show any Indiuatlons at surfaae further than a small amount of contained speoularltes
I ~ is ~t~. F~ut tscdmtt t ts t n t e = t i o n to send one o f h is men down to t h a t m o t i o n w i t h i n the next few d ~ , and t h i s engineer w i l l m~m such rough maps as ave n e o e s ~ to i l l u s t r a t e the ooo~renoe l ~ O p ~ l y ~ and w i l l ~ son~ few samples on the present exposureso ~hese e=#osu~s consist o f a few prospeot holes on the maln flssmm zone, and resulti=E from these workings are a few small
~r. H A G~ess -2- April 10~.
dumps which are said to assay up to 7% in co..T~r,
~7e have not yet heard whether we can tie ap th9 proper~ on the basis that we desire, but if we can it seems to me desirable that we should spend some money ~z puttlz~g down a few diamond drill hol~ to investigate the sheared oocnrrenoe at some dpeth! aud ~ should s~V that an allo~anoe of SlO,O00.O0 would be suffialent and be warrante~ for this purpo~.
Yours very t r u e ,
jXJ ~
NEW YORE CITY, April 7, 1916
l~r. J. Gordon Hardy, ~enne r Building,
Tucson, Arizona
Dear ~r. Hardy:- O02P'ZR ~!OUNTAIN, AJ0 DIS TEiCT~I ARIZ.
Your interesting letter of ~pril 2~ was received from which
I see that ~hile you did not fina the Mitchell property at ~'-~o ~orth
our further consideration, you did through Mitchell, get on the %rail
of another prospect, the Copper Mountain, 20 miles South, upon which
your preliminary inspection was favorable an~ I hope you will be
successful in tying it up along the lines you indicate,
Yours very truly,
Oe J X j~' L~
KEEP THIS ON TOP
Subject: AJO DISTRICT
EIGHTY FIVE GROUP Ajo District Pima County, Arizona
Sec. 29, TI2S, R6W AJO 15 Mln. QUAD Ajo AMS
L
Mr. Wo. H. LoerDabel
~areh ~ ~s
+0,,, V
liP, Ooo=ge ~ m ~ o t the De~artmen~ of ~ A n m ~ ~eso~ees, was i n ~ o~lee the ~the~ da~ ~elAi~ me abou~ ym~r ~ppe~ prospect near A~+O. In looking t~n~ .~h m~ f i l e s Y find that in ~ 1941 ~ late M~,,. Miles . Ca~~ b~~ in a saple
o~ + s eWm ~ t m ) t ~ . 0 ~ a few mA~es , o u ~ t +,t A~o, a~t
• n ~ m a the 50-foot sha f t and f~mm open ~ut 70 Feet P~om ~ . X sent; tb~ ~u~p~ to o¢I~ ~ d e n Plan~ f~r as&ayl.
~ o h Z r e l ~ t e ~ t ~u le~tea, of May ~ 1 9 ~ , ~o ~. ~od~e, a~ folle~a: _ oz.]tin
At that ti~e the not ret~v~n f.o.b. A~o flgtu, ed ~.53 pe~. ton a~e~ ~@du¢~ing f~elght and ~eltir~ c ~ O a p ~n
~en s~le wi~h ~.~0 base chLvge and ~A~alna ~en~ty tn~+ ~++s~ per ~on. At tha ~Pesent ~ e we e o ~ d
p r o b ~ 3 r haadle a small ~ge ~ thls o~e on a base eha~e ~2o~ pe~' ~ ~l~ a~o rA~ !0~ 1 3 . ~ A~ee, whleh on a~
quot~ above would mm~e a + ~ n a l ~ ~ 7 ~ ~e~ ~ n , or total ~at- e~e $~ ,~ ~e~ tea. On ~hls basis, ~er ~ e s e ~ ~e~eA
p~Aeu an~ a ~ ~ Cuo~a ~or copp,~v, the ouP+o~ wo'a),~, ab~a~ as ~ l ~ s l
IP,o,,,b, ]ttaydln ~ , ' ~
Bet at AJO oa ~M~.tmP Set . ~ ~ P:,mstua on aS.(Mi~ Cut ~ .0~ $_~ ~[~ta3. pes. tmt
~ . ~o~ ~li,~
Y und~Ts~u~ that Ln certain !n~ance~ in ord~ to stim~- la~o the p~duetic.m of ~ppe~-bearln$ sillcemus ore, ~@tal~ ~ e ~ v e C~m~a~ has allew~ a~dltlonal ~remi~a of 5# ~er ~u~ • li~ible c@ppew, u~on proper appli~ion ~ pr~sen~a~lon of fac~s. Request fQr such addl~£on~l i~remlmm should be made to
Executive ~eere~ary, Q~o~a C~mmi~ee PT~%~m !~'t~e P ~ u , War P~duc~Ion Board
I f you have done a ~ f u r ~ r dev~opmen~ a t t h i s ~ p e r ~ " s ince - the ~ e ~ . C a . - p ~ ~ w£~h me in May 194l t~ Should be glad ~ have you ~Top me a llne, par$1~larl~_ if you eont~mpla~ s ~ operal~on. ~ . e n e ~ ~m~ Z am i n £~0 ~ l l eall on y~u and a h o ~ d like to see ~he
Zou~s ver7 tz~flT,
ea:~ Geo. Ao B~m ~ , ~ o z ~ 5 , ~ u c s o n
P . ~ , I f you c o n ~ t o ~ ~ p m a n l : s from t h i s propo~'tly, you e s t a b l i s h za~o q u o ~ ~or Qoppe~, by ~ applieal~ion to
t h e Quota Committee a t ~he a d d r e s s shown above, as e z p ~ e d i n t h e enclosed ~ u ~ o f ~ n s ~ u c $ £ o n s .
B.N°R.
bc:R.D.Bradford The sample Mr. Carpen~er brought to the office H.0.Woods In May 1941 looked l~e llme shale with green W'H'L°erpabel//f copper stain, mostly chrysocella with some F . M . S t e p h e ~ mopper ox ide and c a r b o n a t e .
B.N.R.
AMERICAN SMELTING AND REFINING COMPANY Tuc s on Ari z one
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May 26, 19A2
MEMORAN~UM t o
Mr. W. ~. Loerpabel Tucson, Arizona
Hold e n ,
~ ~ q a u n t y . ~ r i z .
Mr. Edwin C This p r o p e r t y is p r e s e n t e d by ~
There is nothin~ in our files regarding this particular group which l~es 2 I/2miles west of the Phelps Dodge pit.
The short report by A. C. Nebeker, which Holden submits, deals mainly in generalities. Some assays are given bug there is nothing to show how they were taken or the w i d t h s r e p r e s e n t e d . ~ churn d r i l l h o l e s have been put down but apparently without encouragin~ results.
~So~e time ago I gathered information on t h e ~ ~~opper~Group to the south of the kelps Dodge property end came
to the conclusionthat superficial mineralization was probably the result of staining and possibly some erratic concentration along strctures by mineralized surface waters during a long p e r i o d of e r o s i o n .
Megaseopic examina t ion o f s e v e r a l o re samples s e n t in b y ~ r . A l l e y seem to b e a r out t h i s c o n c l u s i o n .
I t i s t h e r e f o r e , u n l i k e l y t h a t t h e r e i s a n y t h i n g of i n t e r a s t i n t h e s e o u t l y i n g a r e a s around t he New C o r n e l i a ' o r e body which areas have been considerably pr~pectedwithout encourag- l n g ~ e s u l t a .
X b e l i e v e ~ r . Holden can be a d v i s e d t h a t we would no t be i n t e r e s t e d t r i m eking an e x ~ n i n e t i o n .
F. M. S tephene
!
6~bml t ted by: ~lliiam T. Kolloge ll30 North Z2nd ct. ~llwaukee, ,d sconsin.
~'85~. Copper ~bse, Car dig_an Group of
mining. Claims, at
Ajo ,rima County~_=rizona.
The ~'acts stated as to the '~85 '' may be taken as desciptive of t~e Cop~er ~se, and CaroJgan propertie~, the t~ree groups of claims amjoi~n~lin the order named, and extenaing from the U. ~. C~un ~enge, ~o ~itnin t~ clalms of the huge ~ew Cornelia open pit mine, of the ~aelps Dodge Company, which has and is produced and 9rogucing millions of dollars worth of ore.
This property comprises a total of ~9 but two, measure 60u ~ 1500 feet, each.
claims, of which, all
~rop@rty is reached by a fair auto road @ff the oiled hignwa~ ~ater available by c~urn drill holes in ample amounts. Labor plenti±~uli and experienced. ~o timber on this property.
Geology: Common to the rest of the ~Jo district, consists of Monzomites, ~iorites, quartz veins and andesites. The country has been more or less disturbed by faults wnlch have fractured zones and smaller fissures.
The largest fractured zone seen by the ~riter is wO feet across, in an open pit, sample across the face there assayed Gold 0.08; ~ilve&" G.~O~ Copper 4.75%.~he fracture mentioned above is a strong iron dike, which can be traced for aO00 feet across the property. At ~o., 1 ~aaft near the water tank, t~e sample assayed Gold 0.04~o~ ~ilver 1.70 oz; Copper 6.15%.
fJeYeiopment; consists of t2aree shallow shafts on the ~'85" group, each about 60 feet deep, all showing copper; and several trenches. Four churn drill holes showed ~ gQod grade of copper at 160~ fe~ The churn drill aoleu near the water tank is reported at 16~ copp~
o~ipni@¢~ are said to come in at ZOO feet, at that depth ores ar~ enriched. T~e richest ore in the open pit (New Cornelia) is now beiz found in the lower parts of it.
Ores~ Main value in copper carbonate.
Moiybdenum has beem reported in assays of some samples running u9 to ~%. The veins show eonsiaerable leaching action, and no sulphides were seen by me, but it is natural that sulphldes will be found at water level, and ~,ill be enriched by coppers leached down from the oxiduzed zone. Conclusion; Jueging from W~at I have seen on the property, and what has been done at the big open pit mlne,(Phelps Dodge) along what is making goo~ mines in other districts, this ~85 ~ mine warrants development, and I think another big mine is in the making. Money spent here can make a mine worth several million dollars,
(signed) ~. C. Nebeker, Hining Kugineer, (From report on "85 ~ mine)
KEEP THIS ON TOP
Subject: AJO DISTRICT
BLUESTONE GROUP & COPPER GIANT
Ajo District Pima County, Arizona
Sec. 34, 35, TI2S, R6W Sec. 2, 3, II, TI3S, R6W AJO 15 MIn. QUAD Ajo AMS
Formerly: Stone Group Includes: Copper Giant
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A M E R I C A N S M E L T I N G A N D R E F I N I N G C O M P A N Y
WESTERN M I N I N G DEPARTMENT
O. J. POPE, GENERAL MANAGER
W. R. LANDWEHR, CHIEF' GEOLOGIST
J. FRED JOHNSON, MANAGER OF OPERATIONS
NORMAN WEISS, MILLING ENGINEER
L. H. HART, EXPLORATION ENGINEER
AIR MAIL
August 8, 1949
F. V. R.
AUG 15 1949
~. L. Kenneth %Tilson, Chief Geologist Southwestern Mining Division American Smelting and Refining Company 813 Valley National Building Tucson, Arizona
Dear Sir:
6 0 0 P A C I F I C N A T I O N A L L I F E B U I L D I N G
SALT L A K B CITY, UTAH
AUG I 1 1949
W.
ARIZONA, P!~A COUNTY AJO DISTRICT ' ' BLUESTONE & g0PPER GIANT GROUPS
I have your letter of July 7 outlining your ideas on the prospecting possibilities of the Bluestone and Copper Giant groups. Previously, in your letter of April 19, you had sug- gested that we open negotiations with Mr. Smith for the former property.
We have discussed the matter here, and are of the opinion that the two groups are not attractive from an explor- ation standpoint. This conclusion is based upon: (1) the ex- treme depth of ar~ possible extension of the New Cornelia mineralization in the ground in question; (2) the fact that it seems probable that only the very extreme northeastern corner of the Bluestone group will cover the extension of the high-grade part of the Cornelia ore body; and (3) that our re- lationship with Phelps Dodge is such that it would probably be inadvisable to begin negotiations with Smith.
Therefore~lease dr ~ t h e t w o p r q p e r t i e s f r2m apy - further consideration.
Very truly yours,
W. R. Landv~hr ?~L :si cc:WHLoerpabel, with copy of W.R.Laudwehr's letter of July 5
to L.K.Wils on
L. H. C.
AUG 1 2 7949
Aa-16°I,3E
AMERICAN SMELTING AND REFINING COMPANY Tucson Arizona
August i, 1949
FILE MEMOI~NDUM
COPPER GIA}~ GROUP AJo District Pima County, Arizona
In conversation today with Mr. Greenway Albert, who represents approximately 65 claims in the subject group~ it is apparent that the U. S. Bureau of Mines will begin their expected diamond drilling the latter part of this month or early September.
A few weeks ago I had heard that Mr. Hedges recommended that the Bureau drill the Copper Giant with the sanction of C. A. Anderson, who geologized the area in May of this year~
Mr. Albert states that two holes, or about 4,000 feet of diamond drilling, are planned as a starter with holes to be drilled on the Hunter Group. On the outside chances that something might materialize for us here we will keep closely in touch with the Bureau's drilling and to that end I will visit the property again with Albert some time in September, upon my return to Tucson.
Needless to say, this diamond drilling considerably enhances Mr. Albert's bargaining position. He now asks a total purchase price of 3~ million dollars with an immediate down payment of $35,OOOo00 cash, without prior examination - that is, without any extended time for examination. Six months thereafter the next successive payment of $35,000 would be asked and then payments would pyramid progressively higher in successive years. I pointed out to him that regardless of our interest in amy exploration venture here, we would be unable to consider any cash payment with- out adequate time to conduct a thorough examination firstQ I stated that we might be willing to consider an option calling for the payment of $35,000.00 at the end of six months and that in the interim we might consider holding him on some retainer up to $500.00 per month, but that we could not consider an immediate cash payment. Although he indicates that he would not go along with this picture he is going to "think about it some more" and we will get together again in September.
In postscript to any consideratio~ of the Ajo district, I would note that Albert states that Mr. Weed of Anaconda has indicated a willingness to compromise the diffic~it terms asked for the Bluestone property and this is confirmed by the fact that it is known to me that Mulchay has completed an examination in the past month. Apparently Mr. Weed would consider a down payment of $50,000.00 on an ul- timate purchase price of $5,000,000.00 for the Bluestone in lieu of the demand for a cash payment of $I00,000o00 which Mr. Hoval Smith asks.
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L. KE~TH WILSON
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Aa 16.1.8
AMERICAN SMELTING AND REFINING C0~ANY Tucson Arizona
July 7, 1949
AIR-maIL
Mr. W. R. Landwehr, Chief Geologist Western Mining Department c/o W. H. Loerpabel, General Manager American Smelting and Refining Company 120 Broadway, New York.
Dear Sir:
BLUES~0NE COPPER PROPF~TY Ajo Mining District Pima County, Arizona
This will reply to your letter of July 5th requesting that I write you describing the exploration possibilities in the subject area, and to again state my reasons for believing that these are of interest to us.
As you know, I have discussed verbally the exploration possibilities of this property on several occasions, but we have made no move here to negotiate the property because of your wish that the matter be handled from Salt Lake.
You will recall from our discussion in Salt Lake last November~ and in Tucson this March, that early in 1948 1 had learned that two 2000-foot diamond drill holes had been drilled on the Bluestone property in 1928, at a point approximately 2500 feet south of Arkansas Mountain. (Please see attached map).
Contrary to Gilluly'smaps in Professional Paper #209, the bottom of the fanglomerate was cut at a depth of about 1500 feet below which the holes entered mineralized and altered Concentrator volcanics and Cornelia monzonite. (Compare on attached map).
Near the bed rock smrface, at the base of the fanglomerate around 1500 feet, 28 feet of core assayed 0.97% copper, 12 feet of which ran 1.25%. The primary ore below this chalcocite zone was said to have approximated one-half percent copper down to a depth of 2250 feet. The oxidation and evidence of enrichment in the core continues to a depth of 1700 feet below the ground surface and intense hydrothermal alteration persists throughout to the bottom of drilling around 2000 feet of depth. This alteration in itself is indicative of widespread mineralization and, therefore, is of interest.
The factual display of good values recalled to my mind a two day visit to P-D' s Cornelia operation in the spring of 1947 with Bill Hart and Mr. Blanchard, at which time we noted - - on a
Mr. W. R. Landwehr Aa 16.1.8
-Page 2- July 7, 1949
model of the ruinable ore in the pit area -- that the high grade core of the Cornelia ore body showed a flat southeasterly plunge beyond the present pit boundaries and probably beyond an economic limit of any further open cut mining at this increasing depth.
By correcting Gilluly's section shown on Plate 20 of P.P. #209 using the above diamond drill information, it is immediately evident that the ore in the Bluestone drill holes appears to represent a fringe of a dipward extension of the new Cornelia ore body, an objective, of course, which could be measured in tonnages comparable to the Cornelia ore body, say, lOO million tons or so when within the main ore zone.
The two Bluestone holes were drilled about one-half mile west of the apparent plunge of the Cornelia ore body. A straight projection of the prevailing ore structure without regard for unknown faults would cut the northeastern portion of the Bluestone property instead of the northwestern part where the two holes were drilled.
I have made a cursory inspection of the ground -- unknown to any of the principals involved or to Ajo residents u and I find that the entire area is blanketed by fanglomerate which conceals any evidence of underlying structure. Here then the appraisal of the property becomes at once a question of deep exploratory drilling beginning, I would say, with the point of known copper concentrations in the two Bluestone holes. Needless to say, two holes is meagre pene- tration in a prospective disseminated deposit.
A careful and detailed geologic study might be able to add something more definite to Gilluly' s geology, but, of course, it would not be advisable to attempt this unless the property becomes available on an acceptable basis. We would wish also to personally inspect the cores, of course. These, I am told, would only be available to us in the event an agreement were reached.
Our interest in the adjoining Copper Giant Group which lies to the south of the Bluestone is contingent upon reaching a working basis on the Bluestone. However, if it should develop in negotiation for the Bluestone ground that we could not touch the Bluestone, then we might consider the only remaining entry into the area of the Copper Giant. I have heard that the U.S. Bureau of Mines may drill here.
As I have mentioned before, I do not believe we can lose anything by approaching Hoval Smith and his associates, and at least we can determine precisely where we all stand. I would welcome an opportunity to open such conversations with Smith. At present we have no record of any Company dealings with him, although I understand that there was some consideration given the property in New York several years ago.
Very truly youPs,
L. KENneTH WILSON Lm /Zh Enc. Map No. 819, Ajo District cc: DJPope with enc. CPPollock with enc.
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SUPPL.~v-NNT TO U. S. GEOLOGICXL SURVEY PROF~S~- IONAL PAPER 209, The Ajo ~dining District, Arizona
By James Gilluly /
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in 1928 two diamond drill holes were put down on the Blue,tone ~laims south of the New Cornelia pit at Ajo, ~riz. ~uring the pre~~n o~ Professional Paper 209, "The ~jo mining district, Arizona", ~r. Hoval A. Smith off~red to make available to the U. S. Geological Survey the records of these drill holes. Unfortunately the information did not reach the author, ~gain in 1948, after the publication of the Ajo professional paper,
R~. Smith renewed his offer to make the drill records available to the Sur- vey. These holes furnish data that necessitates some modification of the inferred position of the erosion surface dh w~ic~ t~e Locomotive fanglom- erate was deposited. ~ccordingly, this supplementary note has been prepared. In addition, the following revised sections are included: sections B-B' and C-C' on plate 20; sections through coordinates 9 to 14 on plate 22; and the section through coordinate B on plate 23. ~lso a new map, plate 21~, has been prepared to show structure contours on the base of the Loco- motive fanglomerate and the location of the two drill holes on the Blue- stone claim~.
The cores of these drill holes were examined in October 19~8 by C. A. Anderson and N. P. Peterson of the Geological Survey, and they report min- eralized bedrock below the Locomotive fanglomerate. Hole No. 1 is 2,253 feet deep, and the upper 1,492 feet is in fanglomerate. Hole No. 2 is 2,050 feet deep, and the upper 1,668 feet is in fanglomerate. The rock beneath the fanglomerate is highly silicifisd and sericitized, and lo- cally brecciated. The upper part of the bedrock is oxidized and contains some native copper, limonite and a few seams of chalcocite. At depths 200 feet below the bedrock surface, primary pyrite and chalcopyrite show no signs of enrichment or oxidation.
~ost of the bedrock resembles the Concentrator volcanics, and examina- tion of representative thin sections of the cores confirms this identifi- cation. In hola No. l, at a depth of 2,000 feet, specimens of core resemble diorite porphyry, and this rock may be related to the monzonite intrusive bodies; however, this rock is so altered hydrothermally as to make specific determination impossible.
The bedrock at these depths, beneath the Locomotive fanglomerate, may be part of an upfaulted block or of a buried hill which, after the tilting of the fanglomerate, would now appear as a more gently sloping basal sur- face of that formation. Although faults have been mapped at intervals along the northern contact of the Locomotive fanglomerate, no evidence has been found for a continuous northern fault contact, and the contiauity of geologic boundaries north of the fanglomerate shows that no large fault Qan there exist. ~ovement along a fault near the southwest corner of section 27 (pl. 20) has brought the Concentrator volcanics against the Locomotive fanglomerate, but this fault seems to swing southeastward where it can be traced last near She boundary between sections 27 and 34- Hence
/ /
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would have no effect on the altitude of the base of the fanglomerate ~ intersected in holes 1 and 2. Overlap of fanglomerate on bedrock is very evident where the contact is exposed. This is shown by the wedging out of the lower beds of the fanglomerate westward along the contact° The combined evidence now available from the drill holes in fanglomerate in this area (see pl. 21A) suggests strongly that the erosion surface on which the fanglomerate was deposited not only has irregularities but also, locally, has a relatively gentle slope. The presence of the bedrock in holes 1 and 2 at a higher elevation than would be inferred from the pro- jec$ion of the erosion surface is evidence that the irregularities, so evi- dent along the strike, also exist down the dip. ~lthough a concealed fault may exist and account for the relations, no fault of adequate displacement has been found.
Possibly future exploration will reveal beneath the Locomotive fan- glomerate other areas where the bedrock is relatively near the surface. ~ome of them may be underlain by bedrock sufficiently mineralized in copper and close enough to the surface to constitute minable ore.
,i . . . . . . . . . . .
APR 28 1949
L ~ ' - - ~ r . . . . . . . . . . .
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GEOLOGY OF TL~E AJ0 DISTRICT AS OF !941
To understand and give the proper value to any report or it
statements as to the geology of the Ajo District is of the
greatest importance to find out just when the report was made.
Reports by the most eminent engineers and geologists were
so conservative, lacking in vision of possibilities, of the
extent of commercial ore bodies made prior to 1915, are of no
practical value.
In 1915, according to the most eminent mining engineers
and geologists, the connuercial ore bodies would be limited to
a total of sixty million tons, which was then demonstrated to
exist in a f~rm~tion~argely constitu~ed~f monzonite porphry. a¢2,
th~nining work and exploration~as sh~u~ a tonnage
of commercial ore over three times that amount, most of which
has little to do with the original monzonite porphry ore body.
Instead it occurs in ~udesite, conglumerate, rhyolite and other
porphyries.
To form an understanding of the present conditions and the
undoubted possibilities of other great bodies of ore being dis-
closed, a consideration of the history of the district is of
great help.
Ajo is an old c~o - mining ~vas carried on there by the
Spaniards hundreds of years ago. Up until early in this Century
considerable gold was being recovered from dry placer operations.
About the time of the Civil ~/a~ considerable mining opera-
tions were being carried on. Rich copper ore was handled by oxen
in heavy carts to the sea and shipped to Swansea Wales.
This ore all came from Copper ~ountain, a !o~, ~reen stained hill
of k~onzonite porphry, all low~ grade disseminated copper ore.
But it also contained veins and masses of bornite and other rich
copper ore from vThich the high ~rade ~vas shipped.
About 1900 John R. Boddie and associates of St. Louis became
interested and took over the ground in the middle of the district,
forming the Cornelia Copper Co.
~any other claims were slated out and other companies formed.
The Cornelia ground was centered on and about three !o~v hills only
a few hundred feet high, all green stained from the copper content.
e These hills v~:ere the outcropping of a locolith of monzonite oorohry,
4"a'l-l-of ~vhich was mineralized with fine specs of copper ore, to a
depth not yet fully ascertained although there are drill holes
over i000 ft. dee~ still in ore.
Th~ nlineraZize~monzonite porphry intrusion occupied ~ area
of only a few claims. On all sides were formations of many varied
kinds of rocks. All these showed mineralizations particularly to
the East and South.
In 1909 the Lewisohns took an option on the New Cornelia ground.
J. Parke Channing was their consulting engineer and geologist.
Seeley W. ~[udd and associates took an option on the ground to
the E~st and Southes~, a little later known as the Ajo Consolidated.
The United States Smeltering and Refining Co. also took an
option on ground adjoining the New Cornelia on the East.
An English syndicate also took an option on a group of claims
in the Ajo basin.
~any prominent mining engineers and geologists were consulted
among whom were John Hays Hammond and A. Chester Beatty.
(3)
Considerable work was done and numbers of drill holes were sunk.
Bu~ all~of t~9 aforego~ng options were given up and the whole county
~h~se great mining = ~ turned down. !fi seemed that each of ~ ~ ~n~_ne~rs
and geologists had a different themry regarding the foi~lations and
deposits in Ajo and that they were all wrong.
Then in 1911 the Calumet and Arizona Nining Co. took an option
on the New Cornelia, mainly because John C. Green'::ay, the company's
general manager, had operated on the l lessaba Iron range and wanted
a steam shovel copper mine. In three years they had proved a laye
tonnage in the New Cornelia ground and worked out treatment for the
ores. They had a proven ore body of about sixty million tons in the
monzonite porphry.
Right then another big change in the ore possibilities of the
district was to t~e place.
The Ajo Consolidated was a company which had acquired a large
group of claims adjoining the New Cornelia ground on the East and
Southeast. Not having sufficient canital to exploit their ground
they tried to sell to the New Cornelia offering an option at a price
of ii~150,000. The New Cornelia would have none of this, not believing
that there would be commercial ore bodies in the rhyolite, conglumeratc
and andesite formations.
The Ajo Consolidated interested James Phillips of Boston in 1915,
found an ore body a few feet below the surface about 1500 ft. long,
I00 to 200 ft. wide and several hundred feet deep, so rich it became
known as the Glory Hole.
After a couple of years of shipping rich ore the Ajo Con. was
taken over by the New Cornelia, costing them nearly five millions
dollars.
(4~
The surface of the Ajo Consolidated ground before any amount
of work was done was very similar in appearance to that of the pre-
sent Copper Giant ground two miles to the South. ~ h ~ same
congluraerite with bands of carbonate ore, outc~opp~ngs of~rhyolite,
andesite, occasionall~# some monzonite and othr porphyries. And
t~hrough all p se~m!s, struyers, small masses and bands of ore. The
same rodis and formations are to be found on the Copper Giant as on
the New Cornelia ground of the Phelps Dodge Co., with the exception
of that small part of their open pit in the Northwest part where the
formations are almost exclusively monzonite porphry. Between the
New Cornelia pit and the Copper Giant ground there are few showing of
mineral@zations on the surface, it being covered with conglumerate,
wash and debris. The writer believes that there is ore under all this
ground at an uncertain depth.
To the South, nearing the Copper Giant ground, surface showings
of ore begin to appear again. Either the mineralizations from the
pit South to the Copper Giant ground are continuous, or there has been
an upsurge of mineralization on and in the vicinity of the Copper Giant
claims, similar to that on the old Ajo. Con. ground of the New Cornelia 2
now the Doutheastern part of the open pit.
If any of the government data on the geology of the Ajo district
is based on reports or examinations earlier than 1920 they are certainly
errone eLI $.
There probably will be many more great ore bodies disclosed in the
Ajo district and so is it beyond reason to expect some of these to be
not only large but very rich as were the two big "Glory Holes" found
on the Ajo Con. ground, 8me about 1915 and another several years later,
a short distance to the South?
The Government geologists, like all others, write their best
reports after the prospector, developer and miner has done his
work in discovering and exoloiting the ore bodies.
Respectfully submitted
Joseph A. Hunter
June, 1941
SUPPLEMENT TO U. S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 209
THE AJO MINING DISTRICT, ARIZONA
by James Gilluly
In 1928 two diamond drill holes were put down on the Bluestone claims south of the New Cornelia pit at Ajo, Ariz. During the prepara- tion of Professional Paper 209, "The Ajo min- ing district, Arizona," Mr. Hoval A. Smith offered to make available to the U. S. Geological Survey the records of these drill holes. Unfortunately the information did not reach the author. Again in 1948, after the publication of the Aio pro- fessional paper, Mr. "Smith renewed his offer to make the drill records available to the Survey. These holes furnish data that necessitate some modification of the inferred position of the ero- sion surface on which the Locomotive fanglomer- ate was deposited. Accordingly, this supple- mentary note has been prepared. In addition, the following revised sections are included: sections 8-8' and C-C' on plate 20; sections through coordinates 9 to 14 on plate 22; and the section through coordinate [3 on plate 23. Also a new map, plate 21A, has been prepared to show structure contours on the base of the Locomo- tive fanglomerate and the location of the two drill holes on the Bluestone claims.
The cores of these drill holes were exam- ined in October 1948 by C. A. Anderson and N. P. Peterson of the Geological Survey, and they report mineralized bedrock below the Loco- motive fanglomerate. Hole No. i is 2,253 feet deep, and the upper 1,492 feet is in fanglomer- ate. Hole No. 2 is 2,050 feet deep, and the upper 1,668 feet is in fanglomerat'e. The rock beneath the fanglomerate is highly silicified and sericitized, and locally brecciated. The upper part of the bedrock is oxidized and contains some native copper, limonite,.and a few seams of chalcocite. At depths 200 feet below the bedrock surface, primary pyrite and chalcopyrite show no signs of enrichment or oxidation.
Most of the bedrock resembles the Con- centrator volcanics, and examination of repre- sentative thin sections of the cores confirms this identification. In hole No. i, at a depth of 2,000 feet, specimens of core resemble diorite porphyry, and this rock may be related to the
monzonite intrusive bodies; however, , this rock i s so altered hydrothermally as to make specif ic determination i m p o s s i b l e .
The bedrock at these depths, beneath the Locomotive fanglomerate, may be part of an upfaulted block or of a buried hill which, .after the tilting of the fanglomerate, .would now appear as a more gently sloping basal surface of that formation. Although faults have been mapped at intervals along the northern contact of the Loco- motive fanglomerate, .no evidence has been found for a continuous northern fault contact , and the continuity of geologic boundaries north of the fanglomerate shows that no large fault can there exist. Movement along a fault near the south- west corner of section 27 (pl. 120) has brought ~the Concentrator volcanics against the Locomotive fanglomerate, but this fault seems to swing southeastward where it can be traced last near the boundary between sections 27 and 34. Hence it would have no effect on the altitude of the base of the fanglomerate as intersected in holes I and 2. Overlap of fanglomerate on bedrock is very evident where the contact is exposed. This is shown by the wedging out of the lower beds of the fanglomerate westward along the contact. The combined evidence: now available from the drill holes in fanglomerate in this area (see pl. 21A) suggests strongly that the erosion surface on which the fanglomerate was deposited not only has irregularities but also, .locally, .has a relatively gentle slope. The presence of the bedrock in holes I and 2 at a higher elevation than would be inferred from the projection of the erosion surface is evidence that the irregular- ities, so evident along the strike, also exist down the dip. Although a concealed fault may exist and account for the relations, no fault of adequate displacement has been found.
Possibly future exploration will reveal beneath the Locomotive fanglomerate other areas where the bedrock is relatively near the surface. Some of them may be underlain by bedrock suf- ficiently mineralized in copper and close enough to the surface to constitute ruinable ore.
KEEP THIS ON TOP
Subject: AJO DISTRICT
G I LLARD Ajo District Pima County, Arizona
Sec. II, TI3S, R6W AJO 15 MIn. QUAD Ajo AMS
!}i ̧ !!i~ !i I,~
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~r.,~ ~l~ooto=,~l.~,~ ~o~., A,~..~ .~.Co.tL?,O z~~a~cw YOrlC.
~eez al~
I ~ l ' ~ d l n ~ you f o r yore" f i l e s oor~ of ~0 RusseJ.l's rel~rt on
the 'Jiil~rd Gro~ of Ola~, near .~ou Ar1~:~, ~ic~ he ex~nlned w~le in
oh~e o f Copp.r ~ounte£n ~irill~ ~14~n.
You. ~ill n o t e - t ~ t t h l ~ repor~ I s ~ w ~ r a b l e ,
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o,, a ~., t, ,,i o n .
G ~ I ~ G z ~ p o f ~ £s l o~a t ed ~o~w mJJ.es south o f the
o ~ o t ~Jo . ::he o ~ a r e ~ t to ~n~ ~ h o f t he ~ u t h C o m e l ~
~ e t~o~p oons£=ts o¢ e ~ t m~.,a,~ntecZ ~la£c~ l o o a t e d i n ~he v a l l e y
b e ~ ~l t~ :h t l¥ b r o ~ =1; b~ slm~ZO~ W e ~ ravCues ~nd i~ ec~S~ ~qta~ed
f~om ~JO OWaF ~Od roeu~. G111nl'd, ~ 01¢I pToap~tO~, h~S held theee olai~s
fo~ ~ y e ~ a -
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I ~ ' t Of ~ ~rf,~o~ i s c o v e r e d by a ooaz '~ C ~ ~ r a t e ~ e h i s
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~ c e ! ~ r e the con ,~'i.o~ r a t e has beon ~ e ¢ ~ , ~u i~zmu~ o o ~ . e x ta exposed
~Lue t ~ L l ~ d ~ ~ e b~dd~n~ ShOw8 t ~ ~Or~l~OD~ to ~ bean t l ~ t e d to 8 ~ e p
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a ~ e r which t ~ c o ~ o ~ was del~osited.
~ J l n e z ' ~ 1 £ : a t i o n .
~he n d n e ~ t l ~ a ~ L o n ~ In t ~ o ~ l ~ s i s n o t c o n - ~ t o aJ~ pare-
t i ~ u l a ~ ]d~d of roo]¢ o r i n m~7 defCned ~ n o . ~t o o z e s p r e t t y wide Sl~ead
ove~ t l ~ ¢ l a ~ a n ~ ~ n ~ t - ~ ~ t h e ~ f ~ ¢ ~ u d s o~ x~o2cs . ;[t~ omaolJwta
o f t ~ o d t f ~ m n t t y p e ~ ~ e ~ t e ~ n ~ consists ot a c o a t ~ o f c~ol:~l:~r
ox m 'bomtes turo pl e 0t tbD roo
q u i t e a s ~. ~ ~ d as r~ o ~ - ~ o e a t t h e ~ew C o ~ t l a ~ o u r ~J.i~e ~ s y
b ~ t ooo~vs in ~ow ~ t r a t a o r ~ ~en~rmt~y a t ~ oont~ot of one ~ of
roal~ ~ i t h a n o t ~ £ t o ~ b o t h i n t h e c ~ a l t L u e sm~ fLue ~ i n e ~ ~ o e ~ ,
b ~ not o~t~ur~ no~oeo b~1~l~; ~ ~-~ on~ ~ t o ~ t o t t ~ r . ~ s e , ~ L ~ s ~ -
£zod ~ e ~ s ~-e ~,o0 ~ £ ~ 1 3 " ~ I ~ a t e ( i ~ t o o n a r r c ~ t o be o f o ~ r o i ~ t ~ t ~ -
• Ixa-t~oe. ~ seoo~l t~r~e 2s not as o0m~ o~ as ~qu~ut o~ ~=~..~ranoe as
t h e f t r a ~ . "~-~ts - ~ r a l l = a l ~ t o n o o o ~ e as o ~ o o i t e am a z ~ l a ~ t o r t ~ -
l ~ e ~ a t l o n o~ *~o i ~ o a s r o a ~ . ~ t ~ o ~ J ~ o o X t e ~ o m e t t ~ s ~ c ~ s a~ m i n u t ~
k ~ e J ~ ~ r n o d u l e s i n t h e oo~t~7 rook, ~.~a a~ u ~ ~ n t o f t h e r o o k
i t s e l f . ~ ~ o ~ r ~ c e ~ are in t~e fore of ~ ~ t r e a k ~ o~ v e i n s p~lle~
to tb~ ~edd~ p ~ ~ c ~ a £ c o ~ l t e c ~ Irr~o~a~ly in ~oo~t~ o r l ~ u ~ s
alo~ ~be~e velmm. -~SSb~e ~In~ ~ ~z-Q nmzg~o~, h~ra~¥ a f~ Imoh~s ~id~.
~ X~at ~po~s ~ o n ~ ~ o~pi~6 o~ ~ ~oolte o re ~ v e b~
~h@d and ~Olmher~d f~:,r aha~o~ ~th~. T~ little Ore o b ~ d wsm ~ o r ~ l
tO a s h ~ a &Tad~ ~s ~ o a ~ b ~ rand f r e i g h t e d ~or i o ~ " d l ~ t ~ o~,t o f t ~
O 0 ~ ~fore ~h~ ar1~val Of t h e rail~ aS AJO- ~ ' L ~ t r e n ~ a o s ~-~ud ~l~her
hO1e~ a~ v~ y sh~ilo~ ~ ~ t looks am If ~ b~t4~r p~-~ of ~ vein lles
OiO~ tO the sur:6"~=e.
~ .o~'~ ~.~ b~mn s h t ~ a f ~ m ~h~ o~r t y p e o~ m t u e ~ t t ~ t l o n , a~ i t
of %00 Io-~ a teno~ in c~/~ .~ ~anno~ be ~o ~ ~ sorted to u b~r
f e ~ t d e ~ , stud t h e y aho~ ]J.tt3.o e,~OoI~ t h e ~ s s o f th~ ~ t u ~ m o n ~ t h a t
T ~ ~ u ~ ~ ~ a L m m i a m ~ t i n t o ~ B t l ~ a s a p r o s ~ a t a s ~he ~c~t~ '~noe
i s ~ l ~ t t e d aud t ~ t ~ l t m ~ a a t o ~ r e a l u d 9 am7 e . z p e c t a t l o m I f e x p i a r e ~
n~n~hs' bond ~ L le~me ~ i t h ~ l r s t ~ T ~ e n t i n s i x ~ u t ~ c o - - n e e ~ork i n e t x ~
:~eepeot f u r y ~ubat t t e d t
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KEEP THIS ON TOP
Subject: AJO DISTRICT
CARLOTA COPPER CO.
Ajo District Pima County, Arizona
Sec. 14 & ]5, TI3S, R6W AJO ]5 Mln. QUAD Ajo AMS
Cornelia & Jumbo Claims
Aa-16ol.3
AMERICAN SMELTING AND REFINING C0~ANY Tucson Arizona
May 5, 1947
MEMORANDUM FOR MR. POPE
CARLOTTA COPPER COMPAh-Y Cornelia and Jumbo Claims Ajo Pima County, Arizona
Reference is made to Mr. Rickard's memorandum to me under date of April 28thwith copies to you andMr. Loerpabel and Mr. Tittman, in which he calls attention to the subject property and notes that if we are interested in this ground the representative~ Mr. H. Greenway Alberts, would like to present the matter in more detailo
Mr. Alberts called at my office this morning at Mr. Rickard's invitation with specimens of ore and a claim map of the property which he owns outright, and other ground which he proposes to tie up. At present he is making preparations to ship a small quantity of ore from his Jumbo No. i claim.
The proposal doesn't sound particularly enticing to Judge from our first discussion. Therefore t I explained to Mr. Alberts that our present position was one which is complicated by an unusual schedule of many obligations and consequently, although I was greatly interested in looking further into his proposal, the urgency of these earlier obligations would require that we defer further consideration until some later date.
Present schedules indicate that Mr. Blanchard's inspec- tion of copper properties here in the Southwest will be completed some time after the 15th or 20th of this month and thereafter we shall be able to resume consideration of the properties which already appear in our exploration reportso
I . , K W : ar ~ . , . .-~
WHLoerpabel~----~ ' " "~ .- ~.~l~,.~,,J ° ° *
EM L T c ittman , / ,, /# --
. /
KENNETH WILSON
I1 J. P.
MAY - 6 1947
SOUTHWESTERN 0B~ PURCHASING DEPARTMENT Tucson Arizona
MEMORANDUM FOR MR. WILSON
. , .:~ ,.:, Copper Prospect A~O. Arizona
, . : , :. ~ ~ , t~ . : ,~ H. Greenway Alber ts
On April 26th M r . ~ . ~ r l e :enw~y ' Alberts called at the o f f i c e i n r e f e r e n c e t o . w h a t h e b e l i e v e s t o be a r a t h e r s u b s t a n t i a l m i n - e r a l i z e d a r e a l o c a t e d t h r e e m i l e s s o u t h o f t h e New C o r n e l i a P i t .
which are owned by Alberts and the remaining 25 are optioned to him. In.0ctober~!94.6 this ~roperty was examined for....~T...Alberts b ~ - J o h n I~.. "AleXan~e~,. ~one of. t h e 6wnefS' i Of "Carlotta Copper ~qdm- • , a n ~ ~ . 0 , ' ~ o ~ i ~ - 5 : " ' M i a m i . ~'i : ~ . A l e X a n d e r . ' t 6 o E ; I 2 s e ~ l e a ? o f
5- : . . . . . . ' , " '~v . , ~ : ~ ~ - : ~ " ~ ~ ' - ' . ~ . " ~ "~ " ' * ~ " ' " ~ " ; ~ ' " t : " . i " -~ : : ~ '" - ~ " ~ - t . - ~ - ~ . ~ ,~ ,
~:" ' ~ t :se.ems?it~e~'p~ssibilitles for development~ ar~e ~reat.er :%~an c ~ 'ta Cop er 0om an .... ean under~ake. .... If you are InterestS, a lot ~ p , P.Y.~ . . . . , ~ , , .~ , Mr,._..- ~berts:woul~::T~e .i~0' talk., with-, y~ou :and ' have. y.ou lo0 k , ever t h e - , g r 6 ~ d . , " i . . . ~ "~w~.~in~ a n d - a s k i n g for a " c l a i m ma°p ~ d t ~ e l o - c a t i o n thereon 'of 'the ~var~ous pits represented by Alexander ts samples, , ,, • , ,- ~: ~ ; : ,:: .: :_ ~ :~-.. ~ ~. ,~ - ......
::" ~" * '~" : ~°~Mr..,,Alberts"" : '~. ea~: ~ ~" '~" ;~ ;~ , ~e r e a c h e d * :'~ ~: ' ' :at ~ O ; 'Hox 2~6~ T o m ~ s t o n e ~ A r i z . , o r telephone 2~66 b~fore 8'30 a;m; His home is on the right hand side of the road entering Tombstone, Just beyond Boot Hill Cemetery. Part of the house was recently destroyed, b~f~e. Mr. Alberts is living in the basement.
cc : W.H.Loer~~ D.J.Pope ~ E.McL.Tittmann
ours "t iy; ......
BRENT N. RICKARD
O.J. P,
ARIZONA TESTING LABORATORIES ASSAY CERTIFICATE
John L. Alexander P. O. Box 17~ Miami, Arizona
Octobe,r ~9, 19~6 Lab.~o. Sample
62032
35 36 37 38
41 g2 g3
#1-6 1/2' 6. side #1 P i t #2-5' S. side #1 P i t #3-3' Plt #2 #4-~' Plt ;~ #5-5' Plt #6-5' plt #5 #7-5' Pit #6 #8-~' Pi t #7 #9-...6...' Pi t #8 Dump Greb #lO-Pit #9 Grab Dump #12-Pit ~ #:3 -P i t #26
Copper
2.65% 0.90% 2.2'~% 2 .8~ 5.20~
s.30%
.0~ 5.003
OCtobe r a. 1946 j i~T
61T~ #1 Plts 75 #2 Dump-Conglomerate 76 #3 Plts-600 Zone
3.20%
~.7o%
October 31, 1946 62078 Composite 12 samples
Sl l lea 6 s , ~
Tucson, Arizona April 28, 19%7
SOUTEgESTERN ORE PURCIiASING DEPARTMENT Tucson Arizona
May 2, 1947
Aa-16.1.3
f
/
MEMORANDUM FOR MR. WILSON
H, GREENWAy ALBER~S--MINING CLAIMS NEAR AJO PIT
Mr. H. Oreenway Alberts of Tombstone called a t the office this morning with his maps, reports, and assays on the group of claims which appear@~ to lie about three miles south and southeast of the New Cor- nelia Pit. Mr. Alberts is on his way to Phoenix and may return Monday. He would like to have you let hlmknow when you wish to •visit the prop- erty~ and he will show you the location of his ground. He could give me no definite land marks, although I noticed that on his maps there are roads pretty well covering the two groups of claims, one being the Jumbo Group or the 200 foot zone, the other the Midnight Group or the 600 foot zone.
I quote below ~u assay and analysis of three samples. No. I is an average from the Jumbo Group, No. 2 from the Midnight Group, and No. 3 is a sample of selected carbonate ore taken from the New Cornelia out- crops about three miles north of the point where Sample No. I and No. 2 were taken.
PERCENT
No. I tr 0.~2 4.02 64.6 13.7 3.5 0.7 .8 0.7 No. 2 tr 0.36 3.1+3 65.8 13.O 3.9 0.9 .9 0.7
No. 3 Nil tr 4.52 69.8 12.7 2.0 0.2 .4 0.6
The claim map brought in by Mr. Alberts was made by Mineral Sur- veyor Stevens in July, 1930 and is marked "Cornelia Group" Mr. Alberts had a report by Joseph A. Hunter, deceased, and by Miles M: Carpenter, mining engineer of Tucson now deceased. This report was dated February 2 c 192~. Carpenter speaks of the exposures of monzonite porphyry on the Jumbo claims similar in appearance to those in the nearby New Cornelia de- posit.
Yours truly,
c c : E .McL°Ti t tn~ann D. J . P o p e /
BI~ N. RIC~L~
D. J. P.
MAY - 7
