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ESQUEGASB ESQUEGA 010
/).t';
THE UKEXOUN? :VCKEl •".•ri? :r:?OSIT,AK?cy. ••; f*iarai:., ^.y.AC:'
-'.o. -.cOr . . r
C, -ft-
January, 1968.
l v-
42C02SE0008 ESQUEGA26 ESQUEGA 010C
THE IAKEMOUNT NICKEL-COPPER DEPOSIT, ALQOMA DISTRICT, ONTARIO
INDEX Page
CONCLUSIONS ————————————————————— l
R3CCKMENDATIONS —————————————————— l
STATISTICAL SUMMARY ——————————————— 2
HISTORY ——— r ———————————————————— 3
LAND SITUATION ———————————————————— 3
LOCATION, TRANSPORT and POWER ———————— 3
GEOLOGY ——————————————————————— l*
MINERALIZATION ———————————————————— 6
ORE RESERVES —————————— - ——————— — 8
PRECIOUS METALS ——————————————————— 10
ORE DRESSING TESTS ———— - ——————————— 10
WATER PROBLEMS —— - ——— -- ——————————— 10
EXPLORATION —————————————————————— 11
ESTIMATE OF COSTS ————————————————— 12
1. Historical Summary
2. Sunmary of assayed sections of drill boles
3- Pit volume calculation
4. Precious metals summary
5- Ore dressing tests
6. Ore reserve calculations (bound separately with sections)
Three plans and 35 sections accompany this report.
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CONCLUSIONS
At the Lakemount property there is an orebody of 2.5 million tons
containing Q.36% copper, Q.55% nickel and about U.S^l.OO per ton precious
metals. (511.35 recov. metal value)
Exploration including 25,000 feet of drilling is required before
the orebody can be evaluated fully and mining plans made.
Part of the ore will be mined more profitably by open pit than
by underground methods.
The ore occurs mainly in two parallel zones within a peridotite
intrusion. These zones dip steeply/ are about 400 feet apart, and are each
as much as 70 feet thick. Folds affecting the ore may have resulted in
atten in places but faults and intrusive dykes are not expected
to affect mining adversely.
The possibilityof increasing the near surface ore reserves by
more than ( ) is slight, but sufficient known ore can be mined
profitably to justify bringing the property to production. Results of
drilling to a maximum depth of { )ft. have susggested that grade and
thickness decrease in depth, nevertheless it is likely that ore
persists in subparallel shoots elongated to a considerable depth
down the dip.
RECOMMENDATIONS
That arrangements with Lakemount Mines Ltd. be made whereby
AMAX is permitted to investigate the property for two years, and for
a subsequent eight years to retain an option to bring the property
into production.
That during the two year exploration period, AMAX evaluate
fully the nickel copper orebody, and investigate possibilties of
ore elsewhere on the property. DUPLICATE 'C " '
POOR QUALITY OP TO FOLLOW
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C
opper, .
f//- 3 f -
00:iCLU8IO.\3
At the Lakemount property there is .an orebody - - j . j zillion : r.*
co:. . ..lir.tj 0.3656 copper, 0.5556 nickel and about U.S. Si.JC. ^:- ton precious
neta-s.
Exploration inclu:.:;.jj .5. XX) feet o:1 irilil.'.g: is required before
the orebody cai. be evaluated f^y and B.r.-ng plans made.
Part of tne ore will be i.-ned v.c-.-c profitably by open pit than by
^-.der ground methods. ,
The ore occurs mainly in two parallel zor.es ../.in a peridotite
-aion. These zones dip steeply, are about ^00 feet aperc, eui are each
. .1 B& ;o .ve* thick. Folds ofvectir.,-* tne ore may have resume* in atten-
. .i in . -.^.-^j iut faultf o.nc '.:.t:*usi\. dykes ere net sxpectea tc. af.\*;t
-.-.an .
.y br .
to c. .'o
... possibility of Increasing rhe near surface ere reser-.ss b;'
.i slight, but suffici /nt kiicvn ore can be ii;.oa oro;v.-;abl,
r.&ing the proper-,y -.o xoauction. Results of oil_r.^ ; . a JLS.
. X3 feet have i^t^s-ec. -. .at grtae and thickness c.cc.-ease in c
, it is likely ^..^.^ v.-c ;..c.-rsis^s in subparallel shoots elongat,
;ole depth
That arrangements with Lakemount Mines Ltd. be made whereby AMAX
to investigate tbe property for two years, and for a subsequent
.ght year.' to retain an option to bring the property into production.
..at during the two year exploration period, AXAX evel..-:te fully
e nickel -opper orebody, and investigate possibilities of ore elsewhere on
. .oper y.
:
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C STATISTICAL SUMMARY
Kane: Lakeoount Mines Limited
Location: Algoma district, tp. 29, range 21*,
Area: 2,2^0 acres.
Tenure of Mineral and surface rights; Absolute title
Distance free main highway : 1.5 niles
Distance from major power source ; 6 miles
Distance frca harbour : 15 ailes
Drilling completed : 76,000 fe-it
Strike length of ore : 2,600 feet
toxlmcn dip length : 600 feet
Explored depth from surface : 1,100 feet
Dip: Kaijily steep, but varying froc 45O S. (overturned) to 25O N.
Total ore potential : 2.5 million tons containing 0.3636 Cu and
Maxi.t.w3 tonnage, opes-pit potential 1*7 million tons containing 0.37^ Cu and
Waste to ore ratio - 9 .6 to l
Kaxiiium i.lope - ?*5O
Kaxiauo depth - 535 feet
0.55^
0.555&
Ni.
Ni.
Value of recoverable precious aetals
Flotation recovery - copper
- nickel
:e of I&.KC to be drained
ional drilling required
Cost of 2 year program
U.S. $l per ton of ore
13*1 million cu. feet.
15,000 feet
U.S. 4i75,000.
IJ
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C HISTORY
The discovery of nickel-copper mineralization on what is now the
Lakemount Property was first reported by E.Rt Allen in 1923* Between 19^3
and 1957 this part of the property was investigated first by a magnetometer
survey and then by 76,000 feet of drilling. During this time development of
the nickel-copper body and mineralized quartz veins on the property was
recommended by several geologists, but poor access and doubts about.metal
content, rock strength, and dilution discouraged this step.
Additional historical notes may be found in Appendix 1.
JUO) SITUATIONt
Lakemount .Mines Limited acquired absolute title from the Algoma*
Central and Hudson Bay Railway to mineral end surface rights on 1,920 acres
of ground known as parcel 2017, lease J&70, and an adjoining 320 acres in eight
ciaiss numbered 3560-61-62-63 and 5072-73-7^-75-
Highway 101 and the branch toad to Hawk Junction traverse the property
abc,;: a mile south of the nickel-copper body. Surface rights to about 300 fo*fi
straddling the former were sold to the Ontario government, and control of surface
rights to the latter may be exercised by ihe A.C. and H.B. Railway.
North, west and southwest of the Lakemounc. Property the land is held
by the Algoaa Steel Corporation who are reportedly bringing the Ruth and Lucy
i/c r. ore bodies into production. East and southeast the ground is open except
/ o.* an additional group of claims held by Lakemount Mines Limited.
LOCATION, THAaSPCRT and POWER
The property is located in Township 28, range 2U, district of Algoca,
Ontario.
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Elbow Lake, the site of the nickel-copper body can be reached by
walking 1-1/2 miles on an old tractor trail that leaves the Wawa-Hawk Junction
road near its junction with Highway 101. Assuming that this trail will be
improved to take ordinary vehicles, road distances will be east to Hawk
Junction 6 miles, southwest to Wawa 9 miles, and to Michipicoten, the nearest
deepwater port on Lake Superior, 15 miles.
Power is readily available from the Great Lakes Power Company's
transmission lines either at Hawk Junction (33,000 volt), or Jamestown
(U4,000 volt) which is ten miles west of the property.
GEOLOGY
The most recent geological map is Pl&t, Michipicoten Area, published
ir. preliminary form on a scale of two miles equals one inch, by the Ontario
lyepartment of Mines in 1963. On a regional scale the map shows northeasterly
a..d easterly trending iron formations within volcanic and sedimentary rocks,
segmented by faults that trend mainly northeast, north or north-northwest.
Subjacent intrusive granite, porphyry and syenite all but surround the older
rock* and are exposed within their boundary at several places.
Tee Lakemount nickel-copper mineralization occurs in a peridotite-4
gabbro mass bounded in plan by volcanic rocks into which it was intruded, and
also to the northwest by a small granite plug that is probably part of the
cain acid intrusion exposed about a quarter nile farther east. The peridotite*
intrusion is roughly lenboid in plan being elongatea 7,000 feet parallel to
z.'.i regional east-west strike, and measuring 1,500 feet across the centre.
The main area of interest is the eastern half of the southern
bcurxbry of the peridotite. In this area thorough investigation by drilling
its .-evealed a foiu, analgous to a pivital or hinge fault, whereby the formations
- 5 -
are rotated relatively on either side of a vertically dipping north-south zone
cutting the surface near the western shore of Elbow Lake, and about an axis
perpendicular to this zone near the peridotite contact about 600 feet below
the surface. East of the hinge zone the peridotite contact dips normally .
northwards at an average of 68O at surface, flattening to about 250 at a depth
of 700 feet. West of the hinge zone the contact is overturned dipping south
frcm surface at an .average of 1*50, vertically at a depth of 500 feet, and at
a depth of 700 feet normally northwards at about 60O. Folds related to the
hinge structure plunge down the dip. East of the hinge zone there are no folds
in the near surface part of the contact, but one fold centred on section 6l8E
is thought to becone increasingly evident at depths greater than 600 feet.
West of the hinge zone^in the near surface part of the contact there are three
large folas that die out at a depth of about 500 feet. The eastern end of the
peridotite has been investigated by drilling on both north and south contacts,
and here a carinate structure plunging steeply west is indicated.
Within the property there are several northwesterly trending diabase
dykes one of which cuts the mineralized peridotite in the western part of the
area of interest. It dips southwest at 63O and is 30 feet thick. There are
also sisall dykes of brown lamprophyre that are reported to be the youngest
rocks in the area.**
The lithology of the peridotite is reported to be variable. Some
of the fresh cores contain abundant clino- and ortho-pyroxene, others are rich
in amphibole, end still others are gabbroic. Alteration to serpentine, talc
and carbonate is widespread.
V
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MINERALIZATION
The mineral occurrences napped on the property were assigned
numerals and letters which serve to identify them. The original "Vein F"
is the site of discovery of the copper-nickel mineralization that is the
subject of this report.
Nickel values have been reported from the peridotite only, and
here pentlandite is the host mineral, chalcopyrite is the only frequent
copper mineral and both are accompanied by pyrrhotite and pyrite. In country
rock near to the peridotite heavy pyrrhotite mineralization has been noted at
several places, t ' rt nickel is not present in significant amounts. Two .*
persistent zor.es of nickel-copper concentration occur in the peridotite. One
is close to the southern contact and the other is parallel to it about ^00t
feet to the north. In both these zones the grade and thickness of mineraliz
ation east of the binge zone, is thought to be better near surface than in
depth so far explored, whereas farther west mineralization is often absent
near surface. Mineralization intersected outside of these zones is thought
to be patchy and cannot be proved to occur in distinct zones.
The sulphide minerals ere moderately coarsely disseminated and
clustered into pea-sized or larger aggregates. One previous writer observed
^.h&t the better nickel values are usually found in rock containing these
'-igregates. Veins and stringers have been observed and some slip-planes in
zr.e overturned part of the body are mineralized. .
The showings elsewhere on the property that have been reported
-;-e shown en top l, and are as follows:
.-lolybdenite l - Ssall crystals of molybdenite and chalcopyrite in quartz
-wringers in a porphyry or porphyritic rhyolite.
c. 7 .
Molybdenite 2 - Snail crystals of molybdenite and chalcopyrite in minute
fractures in porphyry.
Vein l - A quartz vein striking NSJ^ and dipping gently south, is about 1200
feet long and t to 20 feet vide. It and brecciated vail rock adjoining it ere
mineralized with pyrrhotite, chalcopyrite, galena, sphalerite, pyrite, native
copper, gold and silver. Assay information indicates erratic values but overall
grade is likely to exceed 0.06 oz/ton Au, 0.5 oz/ton Ag, 0.75J& Cu, and some leadi' ' '
and zinc will be recoverable. Three short drill holes demonstrated the shallow
dip to the south.
Vein A - A mineralized quartz vein 13 inches vide strikes NoO^ and dips steeply
south.
Veins Bj C and H - A quartz vein and breccia zone 5 to 10 feet vide and at least
1,000 feet long, is mineralized vith pyrrhotite, pyrite, chalcopyrite, galena and
sphalerite. It strikes N25OE and dips vertically to steeply south. One sample
chipped front a sphalerite rich zone and representing 8 feet vidth assayed 0.01
oz/ton Au, 0.22 oz/ton Ag and 6.6650 Zn. A basic rock rich in pyrrhotite is
reported just east of Vein C.
Vfcir. D - A quartz vein over 1,000 feet long and very thin to 3 feet vide strikes
. -W ^nd dips 6o9N. Mineralization consists of pyrite, pyrrhotite and chalcopyrite.
.... 2 - Kearly massive sulphides occur at a porphyry-greenstone contact (possibly
.r. c, ouge glacial boulder). Mineralization consists of galena, sphalerite, pyrite,
--.copyrite, pyrrhotite, and arsenopyrite, and may grade as much as ty Cu, 3-5/a
...., o oz/ton Ag, and 0.02 oz/ton Au. One drill hole angled under the deposit
^p0 frora the vest failed tc intersect mineralization.
Vein F - This is the copper-nickel mineralized zone, 50 feet wide at this point.
Vein G - A nineralizea contact zone between porphyry and peridotite. A sample
contained 2.56/6 Cu and 0.0^ oz/ton Au.
Vein J - A silicified contact zone oetween porphyry and mineralized greenstone.
c- 8 -
Pyrite, chalcopyrite, galena, and sphalerite are present. One report describes
the mineralization as chalcopyrite and pyrrhotite, end en assay of 0.98^ Cu
end 0.01 oz/ton Au vas obtained.
ORE RESERVES
The ore reserves vere calculated on sections selected to best fit the
drill hole intersections as recorded on their logs. This involved drawing
sections with different orientation on either side of a dividing line.
Ore calculations, vere made assuming the following:
1. Grades and thicknesses of ore blocks extend midway between drill holes, and
50 feet in the dip direction unless adjoining sections indicate otherwise.
2. Strike length of an ore block is the distance between median sections.
3. One ton of ore has a volume of 11.5 cu. feet. (Based on 8.0. determinations
of 2.71 end 2.93')..
k. Ore intersections in drill holes are those of 10 feet per cent or greater,
calculated on the formula T.T. x (Cu * 2 Mi) where T .T* is true thickness
and Cu end Ni are percentages of the metals, and where the bracketed multiple
is 0-9 or core. (See Appendix 2).
Although at this stage the entire orebody should be considered as an
underground proposition, tbe writer J.B of the opinion that part or the body will
be mined in. en open pit nore profitably than underground. To this end a pit to
retrieve the maximum amount of ore is shewn on the attached plan and sections.
This pit has a maximum slope of ^5O, maximum depth of 535 feet beneath the Sunrise
Lake surface chosen as datum, and was designed to keep the stripping ratio below
10 to 1.
It is emphasized that this pit design is a guide whereby a more practice]
and more profitable design is likely to be developed at a future date. Consisting
e s it may of two bands of mineralization wider and richer near surface than in
depth, the ore may complot to a small but very attractive open pit proposition
vben reliable data are assembled.
The results of the ore reserve calculation are summarized below, and
are fully tabulated in Appendix 6 (bound separately).
c Underground
Proved Indicated
Possible
Total
Open Pit
Proved Indicated
Possible
Total
Combined
Proved,
Indicated
Possible
Total
- 9-
Tons # Cu
0.36 million 0.330.33 0.380.69 0.350.12 0.25
0.81 0.3!*
1.66
1.29
0.86205
0.31*
0.37
0.36
0.1*0 0.38
0.25
0.36
0.530.620.57 0.1*2
0.55
0.93Q.531.1*60.22
0.370.1*20.39 0.25
0.560.570.57 0.1*6
0.55
0.55
0.590.57
0.1*5
0.55
T ne vaste was calculated together vita ore to give a total pit
volune and sass. Tbis calculation is fully tabulated in Appendix 3, and
summarized below:
Volume (cu.ft.) Mass (tons^
205.5 minion 17.9 million
Tons Ore Tons overburden Stripping Ratio
18.3 : l
U.2 : l
.us^e 4- ore
Proved
Pro/ed 4- Indicated
0.93 minion 17.0 minion
1.U6 " 16.4 n
Proved * Indicated * Possible 1.68 16.2 9.6 :
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PRECIOUS ME?TALS
Gold, silver, platinum and palladium are present in the copper
nickel ore. Actual content is difficult to estimate because assay results
of tne small quantities are unreliable. From available data tabulated in-
Appendix U it can be seen that the best estimates of precious metal value
ere $1.^0 and Sl.97 per ton. Assuming $1.70 value and 6056 recovery it can
be expected that precious metals will be worth U.S. Sl.OO per ton.
ORE DRESSING TESTS
Concentration tests of the copper-nickel ore were made in 1928,
19W* and 1952, the last being a thorough investigation by Lakefield Research
Ltd. From these reports, copies of which are attached as Appendix 5,t
indicated recoveries ere:
Copper 68 Nickel 75*
Precious Metals 60#
WATER PROBLEMS
Elbow Lake will have to be drained whether en open pit or under
ground operation is chosen. The lake floor is uncharted and assumed in this
calculation to slope at 20O from the margin to a level floor 35 feet beneath
the surface, which in turn has an assumed elevation of 1010 feet, 10 feet
above the surface of Sunrise Lake, the chosen datum.
The area of Elbow Lake is 635,000 square feet and the volume 13.1
million cu.feet. Draining probably will be accomplished best by pumping after
building a daa on the creek Joining the two lakes, to prevent backflow from
Sunrise Lake. It is estimated that a 10 or 12 inch, 50 to 100 h.p. pump
could drain the lake in less than a month.
-11 -EXPLORATION
Cores from previously drilled holes have not been assayed system
atically and economic cutoffs rarely established. There has also been little
continued system in locating drill holes and this coupled with inadequate
surveying of these holes hinders reliable mine planning.
The near surface parts of the ore zones have bee poorly explored.
There are indications that the two main zones are richer and vider near
surface than in depth explored so far, end it is possible that other zones
will be outlined within open pit range of surface. It is anticipated that with
additional drill hole information it will be possible to design an open pit
vith similar tonnage, less depth, improved grade end improved stripping ratio
to that described in this report.*
The depth potential has been explored to a little over 1000 feet,
and one of the deeper holes (No. 31*0 intersected a true thickness of 39*3
feet of mineralized peridotite containing 0.22# copper and O .kSft nickel. There
is every reason to suspect that the peridotite body persists to great depth,
end ore is likely to be present in sub-parallel shoots elongated down the dip.
The ore potential r.long strike has be-;n largely investigated by
drilling end except for section 2573W where drill hole 26 intersected mineral
ization averaging 0.3^ copper end 0.6856 nickel over a true width of 22.6 feet,
there were no encouraging intersections.
In the parts of the property surrounding the nickel-copper orebody
search should be made for other ultrabasic bodies that may be mineralized, and
the known mineral occurrences should be investigated. The ground northwest of
Sunrise Lake where drill holes l and 2 intersected nickel mineralization should
be carefully considered for exploratory geophysics and drilling. No provision
is cade for this work at' present.
C- 12 -
Exploratory vork proposed is for the neighbourhood of the known
nickel-copper ore. Provided that satisfactory agreement between new and old
results is obtained, it is estimated that 5,000 feet of drilling will enable
the feasibility of an open pit operation to be studied. Assessment of the#
underground possibilities without probing for deep extensions will require
about 10,000 feet of drilling, making 15,000 feet in all.
ESTIMATE OF COSTS
It is enpha sized that the Lakemount deposit is considered to have
excellent development potential, but cannot at this stage be regarded as a
mine awaiting development. There are many obvious factors that could add to
or detract fron the value of the body and affect the design of an open pit,s
and even after checking metal distribution, cutoffs and rock strength by
drilling; milling, flotation and smelting recoveries will have to be evaluated.
It is reasonable to assume that capital costs covering exploration,
surface installations including a 1000-1500 ton/day concentrator and mill,
power installations, roads, equipment, and draining of Elbow Lake, would
exceed fc3 million. It is also reasonable, to assume that ^20 million worth ofC l -C,**.* n y l ** - -T v . ey-**- ?-*J . netals can be recovered f rea an open pit mine at a total cost of $13 million.
It is suggested that an open pit operation similar to that proposed could be
conducted for three to six years under terms profitable to AMAX, and that
underground mining could be considered a separate venture against which the
cost of surface installations will not need to be considered.
It is expected that Lakemount Mines Limited will agree to a two
year option for paysent of $5,000 p. a. and that a subsequent option can be
arranged for annual payments escalating by ̂ 2,000 p. a. from an initial $10,000
p. a. to a maximum of $25,000 p. a. If a mine is in production the annual payments
7c
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vould be stabilized at ^15*000 p.a. No other payments would be made until
AMAX has recovered its investment * 15S& interest, whereafter net profits
would be shared on the basis 50 to 70J& AMAX, 30 to 50J& to Lakemount M.L.
It is important to remember the special conditions of cvnershl
that Lakemount agreed with the A.C. and H.B. Railway* takemount have
absolute title to the ground, but royalties on mining base metals will be
paid to the A.C. and H.B. Railway at tta rate, 2J& of the first million dollars
market value, 3# between one and four million end *# thereafter each year on
the year's production. These terms are very much less favourable than terms
written more recently to lessors of tracts of A.C. and H.B. property, and it
is possible that a constant 2# of net profits can be negotiated.
Exploration,costs including 15,000 feet of drilling, assaying,
metallurgical testing and surveying of the property are expected to amount
to U.S. $75>000 over two years.
J. A. KcGregor
Appendix l.
HISTORICAL SUMMARY (available data only)
1926
1927
1928
1929
1939
l
Original staking in Tovnsbip 28, ronge 2k, Michipicoten Area, follcving a discovery by J* H* Teare on a property known as Andargo,
B. K. Bond acquired 12 square miles of prospecting rights and from this selected 3 square miles wbich the Algoma Central Railway Co. finally transferred to him in 1929.
M. W. Sumnerbayes and E.R. Allen reported separately to Engineers Holding Co. of Michipicoten, vho are assumed to have been in association with Bond. Attention vas given mainly to quartz-gold-copper-lead-zinc veins, but Allen specially mentioned the nickel-copper mineralization.
Ore dressing report No. 318, 1929 by Ont. Dept. of Mines. Tests made on a 50 Ib. j sample submitted by Allen indicated good recoveries of copper, nickel, gold, silver and platinoids. .
0*w - McLeod reported on the property and recommended detailed mapping. j
Corinth mines acquired the property and commissioned a report by W. B. Mather. Interest in molybdenum due to adjoining molybdenite property to the north (Regnery Ketals) prompted search for the mineral and two discoveries were made. Mather introduced identification letters for the mineral occurrences which were used by later writers. He recommended a great deal of work, but not specifically at the copper-nickel showing.
*
Replying to enquiries by the Wor Metals Advisory Committee, Mather and Summerhayes separately recccnmended prospecting and developing the lead-zinc veins. A pre liminary report for the Ont. Dept. of Mines was written by E. S. Moore. Evidently unfamiliar with all the previous work he suggested that nickel might be present, but his reconaendations concerned additional work on the lead-zinc veins. At about this tine the property was acquired from Bond by Lakemount Syndicate, subsequently becoming Lakemount Mines Ltd., and additional ground was staked.
A comprehensive report by Douglas S. Baird followed the drilling of X-Ray holes 5 to 10, and deeper holes 11 to 16. The possibility of more than one ore zore ves recognized end a suggestion made that 1.5 million tons of copper-nickel ore was present. In a supplementary report he estimated ^00 ft. x 50 ft. x Uo ft. deep s 80,000 tons of ore readily available by open cut northeast, of Elbow Lake.
Drilling by Lakeaount continued and an Askania magnetometer survey was done by H. Lunenberg, assisted by B. T. Wilson and R. Holies. Drilling was reccrcraended at several highs within the general high positive coinciding with the peridotite. H. A. Timains Exploration (Ontario) Ltd. optioned the property for a year and continued drilling under the direction of John Armstrong. Armstrong submitted two 200 Ib. sacplee to the Ont. Dept. of Mines, Ottawa for flotation tests. I-avourable results were obtained on a head sample containing 1.08?o Ki, 0.5^ Cu, j. 30 oz/ton Ag and a trace of gold.
Completion of drill holes to No. 6U, approximately 28,000 feet to this time.
19!*6 S.S. Moore in Ont. Dept. of Mines v.55; pt.!*, reviewed the property and concluded that mineralization could not be profitably mined under conditions then.
- 2 -
1951
1952
1953
1956-
1959
1962
1967
Optioned by Kclore Mines Ltd, (changed to New Kelore Mines Ltd. la 1953). Drilling started tinder the supervision of J.O* McCoabe assisted by A. Eldridge.
L.R. Simard evaluated the property for Kelore Mines Limited. He recommended additional drilling on both contacts, and extension of the meg survey over the rest of the property. Ee drev attention to the unexplored nickel intersections in drill holes XR1 and 2. Ho estimated 1.4 million tons of ore at bet l r than 0.55* Cu and 0.5# Ni. Lakefield Research did flotation tests with very satis factory results. McConbe, supported by Stanley Davidson, vrote en enthusiastic report in which he estimated 5 Billion tons to a depth of 800 feet, at a grade of 0.32# Cu, 0.51# Ni. The Kelore drilling to this stage included holes 101 to 136 and amounted to a little over 19,000 feet.
Optioned by Ventures Ltd. (absorbed by Falconbridge in 19&2), vho drilled holes 201 to 231 amounting to a little over 17,000 feet. C.P. Cockshutt reported on this work damning the property as having no depth potential, difficult mining and only 0.5 million tons of ore grade material. W.C. Martin enlarged the reserve figure to 0.9 million tons containing O.Ul# Cu and 0.60# Ni, but he considered dilution a major problem and ruled the body uneconomic.
New Kelore drilled holes 301 to 316 amounting to over 12,000 feet, bringing the total drilled at the property tp over 76,000 feet. Several reports by C. S. Johnston followed in which the reserves were estimated at 2 million tons contain ing 0.656 Ni and O.U# Cu. Shaft sinking in order to do depth exploration was recommended. Tenders for this work were submitted, but were higher than expected end the shaft was never sunk. At about this time McPhar did an E.M. survey over the property with the discovery that several of the old lead-zinc veins were moderately strong conductors. Two holes were recommended but never drilled.Soil sampling in 1957 is reported to have given an anomaly over one of the known mineralized zones, but the maps are no longer available.
The data vas reviewed for S.W. potash by R.W. Hodder. He estimated 0.5 million tons containing O .hfy Cu end 0.75& Ni with possibly an additional 0.5 million 15ns it similar grtds. He did not rev-oouiend any action.
T.N. Macauley prepared a report for Algoma Central Railway. potential, but did not recommend any work at that time.
He recognized the
Evaluation for AMAX by J.A. McGregor. 2.5 million tons containing 0.35# Cu and 0-55# Ni estimated of which 1.7 million tons could be considered an open pit proposition. Acquisition and development recommended.
**le No.
SIS2S3S4
XR-A
XR-B
XR-C
XR-D
XR-E
XR-F
XR-G
XR-H
.R- 1
XR-J
XR-X
12
566789
101112
1314
151617
18192021
From,
6.522.0
21.055.0
75.0140.0
85.0
63.0
40.070.0
35.0
90.0
20.0
85.0
58.060.098.5
40.047.0
.J416.0487.0195.0425.0560.0
171.0231.0330.0160.0534.5280.0
SUMMARY
To
11.050.0
37.560.0
90.0145.0
95.0
75.0
55.075.0
70.0
135.0' ,
80.0
100.0
60.061.099.25
45.052.0
395.0441.5522.5204.0450.0568.0
231.0238.0360.0169.5584.0327.5
OF ASSAYED SECTIONS OF DRILL
Intersected Thickness
Not assayedM H
M H
H H
4.528.0
16.55.0
15.05.0
10.0
12.0
15.05.0
35.0
45.0
60.0
15.0
Not assayed
2.01.00.75
Not assayed5.05.0
Not assayedH il
57.025.535.59.0
25.06.0
Not drilled60.07.030.09.5
49.547.5
Abandoned
True Thickness
(T.T.)
4.64.7
52.514.520.39.015.05.6
48.45.420.89.49.5
45.2
HOLES
Cu.
0.450.32
0.52nil
0.270.17
0.23
0.16
0.310.42
0.16
0.24
0.41
0.25
nil0.320.05
0.920.54
1.110.320.290.400.261.18
0.190.360.300.320.400.34
".;'- :'' Appendix' J'^i^ll g. : 1^*'B.
% Feet i S Ni. T.T. X B
0.660.42
0.480.55
0.590.32
0.37
0.37
0.280.30
0.46
0.46
0.77
0.57
0.801.620.99
1.290.94
0.500.580.360.500.320.41
0.420.720.930.480.410.54
(cu -r 2 m) B) ' B) K) K) * ' m
l ll l
i t1 1) -Location*) Unknown m) K
i) I
) K
)
1611
1112221131410
501047121265
. 2 -
SUMMARY OF ASSAYED SECTIONS OF DRILL HOLES
' ' 'le No.
2223, 24, 25
2627,28,29,30
31
32' 33
343536
37
3839
40
41424344
454647
48
49
5051525354
55 to64 incl.
101
t
From
159.0
660.0
650.5814.0
90.0
272.0141.7165.0305.5197 8387.0335.0420.0761.0221.0250.0225.0220.0
295.0330.0400.0675.0605.0175.0435.0595.0235,0305.0590.0675.0335.0360.0415.0495.0240.0325.0
217.8
206.0240.0324.0478.0755.0785.0
To
169.0
685.0
668.0824.5
102.0
278.0144.0170.0375.0205.0395.0345.0425.0770.0225.0270.0235.0230.0
305.0375.0405.0680.0667.0205.0436.0600.0240.0320.0600.0685.0345.0385.0425.05C5.0260.0334.0
225.0
211.0254.0352.0435.0760.0795.0
Intersected Thickness
10.0Not assayed '
25.0Not assayed
17.510.5
Not assayed12.0
Not assayed6.02.35.0
69.57.28.010.05.09.04.0
20.010.010.0
Not assayed10.045.05.05.0
62.030.01.05.05.0
15.010.010.010.025.010.010.020.09.0
Not assayed7.4
Not assayed
5.014. C23.07.05.0
10.0
True Thickness
(T.T.)
2.6
22.6
7.47.2
9. 9'
4.62.35.0
69.07.07.8??73.5
17.310.0
10.045.05.05.059.026.2(vein.)4.64.714.19.79.77.1
17.77.17.1 ?19.9 ??
5.013.927.97.05.0
10.0
CU.
0.22*
0.34
0.450.20
0.16
0.320.510.340.400.180.170.050.220.240.270.290.230.09
0.110.230.14 .
. 0.090'.380.053.86C. 220.230.150.180.280.220.190.150.250.100.19
0.07
0.050.050.060.160.200.28
Ni..
0.56
0.68
0.790.36
0.51
0.230.210.220.490.550.410.240.460.340.460.450.300.22
0.610.550.550.470.530.450.300.310.660.380.440.430.420.510.450.590.400.38
0.22
0.500.570.480.480.530.42
Feet t i T.T. X K
(CU -f 2 Ni)I
4 I
36 I
. 15 l7 1
12 1K5 l2 14 1
95 19 1Q 1
'4 121
-606S
8525547 1
A3
10118
2181113
-
517298611
- 3 -
SUtWARY OF ASSAYED SECTIONS O" DRILL HOLES
^le No.
102103 10U 105106107
108
109110in112
113111*
115
16
117115
119120JUil
122123
12^125126
127
123129
130
31-3213313*135
From ToIntersectC'.' True Thickness Thickness Cu. Ni.
(T.T.) Sparse mineralization
Abandoned Sparse mineralization
Abandoned
200.0275-0220.0252.0261.0320.0323.0395.0265.0600.0320.0355.01*71.01*97.0275.0333.01*25.0500.0520.0292.0530.0
70.0630.01*7.0511.0
i; 60.01*75.0U80.0606.0677.0510.0565.0lO^.O1462.0196.0260.0250.0365.079-0
129.035-. 0J '1^.0120.0123.0
210.0290.0230.0256.0236.0325.0333.01*25.0310.0627.0330.0263.0*75.0537-0295.0333.01^60.0510.05*9.0297.0565.0
155-0635.01^52.053^-0
1*65-0^95-01*90.0616.0632.0525.0610.0LI!: .^
U72.0203.0265.0255.0"37" Oj 's . J
y x . *j15^.0lO-'-.O1*19.01-0.0133.0
Kot drilled10.015.010.0i*.o5.05.0
10.030.0025.0 .27.010.033.0i*.o1*0.020.05-0
- 55.010.029.0 .5.o
35.0Kot assayed
85.05.05-0
23-0Kot assayed
5-020.010.010.05-0
15.025-010.0 )10.0 )5.05-05-0
10.020.05.0
10.05- c
20.010.0
10.015.010.0k,05.05.09-9
28.120.521.68.7
28.63-5
35.613.6
3.1*1*2.19.5
27*5-0
31*. 2
67.91*.82.7
12.5
3-5lU.l5.01*.76.3
11.710'5-05-05-05-7
16.0k.O5.02.515.59.4
0.200.560.170.520.180.250.200.670.250.250.290.770.370.1*8 .0.230.550.1*60.220.560.120.87
. 0.250.200.350.13
0-370.210.300.170.1*1*0.1*30.5*0.320.660.300.330.170.290.220.2U0.160.150.350.35
0.510.26O.Uo0.670.670.30O.U30.630.1*30.370.380.750.300.1*60.360.21*0.620.310.37O.U81.120.520.310.360.1*00.260.500.1*90.600.380.921.000.72 )1.30 )0.580.670.390.590.511.630.1*00.1*60.1*20.37
Feet % ~ T.T. X
(Cu * 2.NJL)
121610.784
n I542321
965
35014
472
836
5106
8843
12
317
613
61430
2C7958
2014
53
1810
Assay results lost
^93-0 523.0 Kot assay30.0
edll*.0 0.23 0.1*1 15
——— .i . ..
. - - -, 4 I |l |ll M
: ' J ' - 4 - ' ' ——-
SUMMARY OF ASSAYED SECTIONS OF DRILL HOLES
*le No
136
201,202203
204 to208 incl
209210
211212213214215
216,217.218
219,220221
222,223,225226'27
228.
229
?30231
301302
303304
305
306307-•03
309,310311
From
-
. ^50.0
.369-0181.0 217.0
305.0204.0504.5321.0572.0
473.0532.0
600.0221*
470.0324.0
' 282.2559-0480.11*99.05^2.0530.0573.0665. c
1*2.0115.0177.0
550.0563.0
641.5666.5162.0267.0566.5633-0356.0271.0717-0
1*0.01043.0
To
460.0
379-0189.2 222.0
312.0214.0509.0325.0582.0
487.0547.0
607.0
526.0332.0283.5563.5j|fi|| 2504.0560.2559-0568.0676052.0
165.0165.5
560.0600.0
651.5701.5173.0275-0571.5676.0367.0279-5732.050.0
1061*. o
Intersected True Thickness Thickness
(T.T.)Assay results lost
Not assayed10.0 6.4 t
Not assayed '10.0 ?8.2 3.7 5.0 2.3
Not assayed7-0 3-5
10.0 8.24.5 3-54.0 3-9
10.0 9.8Not assayed
9.0 5.615.0 9.6
Not assayed* . 7.0 4.9
Not assayed56.0 55.68.0 2.11.3 . Vein4.5 ' 4.44.1 2.05-0 2.5
16.2 9.129.0 28.715.0 li*. 66.0 5.2
10.0 8.150.0 1*0.58.5 6.9
Not assayed10.0 9.417.0 . 16.0
Not assayed10.0 9.235.0 32.2ii.o 9.28.0 6.75.0 1*.6
43.0 1*1.59-0 7.U6.? 2.2?
15.0 n.310.0 6.7?21.0 20.7
AbandonedNot assayed
Cu.
0.38
0.240.01 0.22
0.230.240.340.170.250.220.27
0.22
0.290.24
12.051.440.45
. 0.190.300.320.45C. 250.450.40o.#
0.350.55
0.150.370.240.230.220.330.290.370.470.200.52
% Feet * Ni. T.T. x
(pu -f 2 Ni)
jt
0.32
0.3^0.55 0.43
0.340.4o0.500.370.380.300.350.28
0.33
7
4 3
3954
1059
4
530.57 ! 30.4lo.4i ; 100.16 20.44 30.46 ; li0.61 : 441.40 i 480.2? : 40.670.66'0.86
0.60
157015
150.68 31
0.36 80.59 500.48 110.56 90.50 60.4l 480.52 100.66 40.47 170.32 60.97 51
t '"
- 5 -
SUMMARY OF ASSAYED SECTIONS OP DRILL HOLES
•*le No.
31231331^315
316
From
585 .0
To
595-0
Intersected Thickness
10.0
True Thickness
(T.T.)
? 0
Cu.
•30
Ni.Feet iT.T. X
(Cu * 2
O.U31
Not assayed922991
'1021*
.0
.0
.0
970.995.
00
1035.0
U8.0U.O11.0
' 39.33A9-3
000
•33.23.22
0.5U 550.60 sO.U9 ' li
Not assayed
Appendix k .
PRECIOUS METALS SUMMARY
Oz. per tonDrill Hole
7
8
11
11
12
13
14
26
44
45
51
19
31
45
47
50
101
110
111
112
From
40
47
338348360385338
425487
172
410 560
660
350
625
665
535
805
605
550
475
240319
376395
270570
315335355
To
45
52
348360385395395
447.5522.5
220
450 ) 568 )
685
400
667
750
584
820
650
625
505
253352
395428
310627
335355383
Width
5
5
1012251057
) 6Q}
48
48
25
50
42
85
49
15
45
75
30
1833
1933
4057
202028
AU.
O.'Ol' 0.06
0.060.04Tr.
Tr.
Tr.
Tr.
.
\
0.005
0.003
0.004
0.002
0.007
NilNil
0.0020.001
Tr.NilTr.
Ag.
0.17
0.17
0.14
0.10
0.11
0.200.16
0.1220.100
Tr.NilTr.
Pt.
0.06
Tr.
0.050.050.050.04
0.02
0.01
0.02
Nil
Nil
Nil
Nil
0.006
0.002
0.003
0.001
0.015
Tr.0.009
0.0020.008
0.003Tr.0.021
Pd.
0.100.100.30Nil
Nil
Nil
Nil
Nil
Nil
Nil
Nil
0.006
0.002
0.002
0.001
0.013
Tr.0.006
Tr.0.003
0.002Tr.0.013
Pt. Assays By
Not recorded 1943
H M
Private at Trail, B.C. 1944It H N N N
M II M II H
Ledoux fi Co., New York, 1943
M II II H H (f
II II tt MN N
II H H M tt It
Thomas Keys 6 Sons, Toronto,1952
HUN M
II II H N
II H M M
J. W. N. Bell Laboratories,Haileybury, 1952
M
•1
M
H
) j. H. N. Bell Laboratories,) Haileybury, 1952
II
II
II
II
II
113 499 534 35 0.001 0.221 0.001 Tr.
s
k
Drill Hole Froa
114
115
116
308
Averages
Approx .
110
112
113
114
115
116
261 445
520
530
1043
based on
value $ U
400 420
320 373
499514
455 470
510
510 525
To
295 480
549
565
1064
Bell
.S.
405 425
330 378
504 519
460 475
520
515 530
. 2 -
Oz. per tonWidth Au. Ag. Pt. Pd. Pt. Assays By
34 0.003 0.134 0.012 0.009 ) J. W. N. Bell Laboratories, 35 ' 0.001 0.12 0.003 Tr. ) Haileybury, 1952
29 0.002 0.123 0.016 0.009 "
35 0.004 0.224 0.026 0.010 H
21 0.019 Not recorded 1957
Laboratories only s -
0.002 0.16 0.0075 0.0045 0.08 0.32 0.82 0.18
m5 ' "
5
10 5
*
5 * . -5 - '
5 5
10
5 5
Combined
Approx. value 5 U.S.
0.015 0.235 0.005 0.010 Wakefield Research
0.57 0.47 0.55 0.38
Appendix S.
copyOre Dressing Report No. 318, 1929.
Concentration of Copper- Nickel bearing gabbro from Engineers Holdings*
- 2 bags - 50 Ibs. from R.N. Bonf, January 8th, 1929.
- The material consisted of a schisted, darX, weathered gabbro, containing finely disseminated sulphides of copper and iron.
- Purpose: The shipment was forwarded vith request that concentration tests be carried out to determine the most suitable method of treatment.
Analysis of Representative Head Samples.
Cu....................Ni....................ZR....................Au. . . . . . . . . . . . . . . . . . . . .0.01 ozAg.... ................ 0.25 ozPlatinoids: Chiefly palladium. . . . . . . . . . . . . 0.06 oz
Test 1:
Product
Material crushed -Ikground 9# -150
Flotation:soad ash to ball mill - 3 Ibs per tonIn cells:Pot. xanthate .10 Ibs. per tonPine Oil - .03 Ibs. per ton
Weight ASSAY PER CEhT OF VALUE
Platin- Cu Hi Au Ag oids Cu Ni Au
•Platin oids
Concentrate 12.76 8.97 3-H -O** 1.26 97.90 76.U9 59-3 66.5 33.9
Tailing 87.2^ 0.03 0.1** .00** 0.0^ O .Oh 2 .02 23.51 *K).7 13.5 66.1
Proa the above tests it appears that a bulk flotation of the finely ground materiel yields high recoveries of copper end a large per centage of the nickel in the ore. The assays of the products of Test No.l shov that major amounts of precious metals, vill^-be^cpnj.
concer.trate. Clea"ning~aTTd~ cu-.cer,tral'e~w"ill^doubtless raise he~graaTe7~and yield a product acceptable for snelting purposes.
Appendix 5. (2)
ORE DRESSING REPORT 1944
C
l \
A bulk sample fron the exposed section of "F rt zone, comprising two lots of approximately 200 Ibs. each was forwarded to Ottawa by John Armstrong for preliminary tests, with the following results: (June,1944)
Average (2)Lot No.l Lot No.2 Lot No.l Lot No.2
1.08J5
Cu..0.( Zn............ Nil"Fo............l2.05tfS............. 5.SO/5As...........* NilAu............ Tr.Ag............ .30 oz.
Preliminary flotation tecto indicated that1 * * . *t
the copper appeared to float quite readily, butdetails o.C control would h?.ve to be wcrked out forthe nickel flotation.
ORE DRESSING REPORT 1952Appendix B. (3)
c CONCENTRATION OF K1CXEL-COPPER ORB
submitted by
Mr. 'JOi-M G. McOOMDB
.Sault Ste. Kario. Ontario
Introduction;
Six samples of split dianond drill core were submitted on July 29, 1952, by Jto. John G* McCorobe, Con sulting Geologist, Sault Ste. ?-!arie, Ontario. Tho samples were reported to be from a property under investigation in the Michipicoten area of Northern Ontario and v/ere marked as follows;
Group D.P.H. No. Sample Kos.
363 k 3 72 * 375, 376 fe
386403 fc 406 451 fc 454 460 b. 461474 fc 477
12
34l
110112
113114115116
. 400' to 405', 420' to 425*320' to 330', 373* to 373' 499* to 504', 514* to 519f510' to 520'510' to 515', 525' to 530*^1
Object of the Investigation;
It vao requested thtt the cubraittod oro be tooted to determine;-
(1) Whether the copper and nickel could be recovered in a l 'Z bulk sulphide concentrate by standard flotation con- ' centration methods;
(2) The ratio of concentration to be expected;t
(3) Whether the precious netals would concentrate with the copper and-nickel in the bulk sulphide concentrate*
, f
. l. 2 - .
i
( Preparation of the Samples for Testing;
Each sample of drill coro was crushed with the laboratory jaw crusher and then reduced to minus 10 mos.h through rolls operating in closed circuit with a vibrating screen.
A composite sample ior testing was prepared by combining equal quantities of each sacple group. The com posite sample was thoroughly mixed and sampled for analysis* Chemical Analysis:
* *
Composite Teat Hoad SatnoleTotal Precious Kotals - 0.2? oz/ton
Cold, Au - 0.015 oz/tonSilver,-Ag - 0.235 "
f . ' . Platinum, Pt - - 0.005 " "; 'Palladium, Pd - 0.010 "
Copper, Cu - 0.36 per cent -
Nickel, Ni ' . 0.43 "
Sulphur, S - 1.74 w
Outline of Concentration Tests;
. The laboratory concentration studios were limited
to concentration by bulk oulphide flotation of the ore v/ith
fine and raedium fine grinding.
CKN'ERAL SUGARY
Test results indicate this ore will respond quite
favourably to concentration by bulk flotation. The ore is not
difficult to grind and need not be ground finer than 76.5 per
cent minus 200 mesh for a satisfactory liberation of the sul-•f
phide minerals.
-C ' ' .The concentration treatment of the ore was
directed towards obtaining the maximum recovery of the metals in a rougher bulk concentrate, recleaning the rougher
concentrate as required to produce a bulk sulphide con
centrate suitable for smelting.
Tost results indicate approximately 57 per cent
of the total precious metal content in the ore is recovered.
in a cleaner bulk flotation concentrate.
Indicated recoveries s'nown in the summary table
are based on the metal content in the final cleaner con
centrate. In actual plant operation those recoveries vrould( t
*
be increased as the cleaner tailing v/ould be recycled.
This could be demonstrated in a pilot plant test or in ajf
locked butch laboratory scalo test.
A tabulated auniaary of the test results is
given in table No.l. The individual tests are outlined in
detail in the ru.oaindor of tnis report.
Respectfully submitted,
LAKEFIELD RESEARCH LIMITED
S* O Foster Assistant Manager
TADLR No. l - CONCENTRATION of COPPER-NICKEL ORE -of TBST H15SULTS
ASSAYS and CHEMICAL ANALYSIS
Test No.
456
Tost Ko,
ft5.6.
Grind Bulk eleanor Concentrate Ratio of ^ - 200 Mesh Au . AK Pt fr. Pd Cu Ni S Inool Concentration
86,7576.5776.57
Au64.42
71.4760.97
0.15 oz0.21 oz
0.18 oz
2.20 oz 0.1052.03 oz 0,1152.45 oz 0.117
oz 4*98# 4oz 4.68# 4oz 6.21J5 5
* ^NtJ l ̂ Pfln A T Q* ^^t 1*4*^ X f \ Tutlf
Per Cent in Bulk Cleaner Concentrate
AK Pt fc Pd Cu59.8758.3355.17
44.8055.3342.36
88.8287.1387.75
.96# 23
.84^ 21
.8735 2?
Ni74.7876.8869.52
,21# 33.48^ 15.6 to 1•7P# 35.56S5 14i6 to 1,30# 21.34^5 19.6 to 1
S ' -85.3785.18 . '80.04 :-
- 5 -
Details of Concentration
J.Kc Test No.fr. - Bulk Flotation
A 3000-gram portion of minus 10 mesh composite test head sample was ground in the laboratory ball mill at 60 per cent solids with reagents for 35 minutes* Grind
Mesh
Wt.5S
100 150 :200 - 200
0.14 1.25 4.73 7.13 66.75
The mill discharge v/ao transferred to a Denver Sub A
flotation coll and floated at 25 per cont solids. After the
bulk of the chalcopyrite was floated, sulphuric acid was
added to provide a pulp pH 6.0. 7he nickel-bearing sulphides
were floated with^stage additions of Aerofloat 25 reagent.
The rougher bulk concentrate v/as cleaned tv/ice.
Cleaner tailings were corcbined for w6ight and assay.
Reagents Used: ;.-lb. per ton of oro treated.
To Ball Kill ' Roughing 1st Cleaning 2nd Cleaning
A.C.Reagent301 0.10
Pine Oil 0.05
A.C.Reagent633 0.50
Copper Sulphate
Sulphuric Acid
Aeroflot 25
Ticae (Min's) 35
0.10
0.025
0.25
0.015
0.25
0.75
0.50
0.075
30 10
c Flotation Results;
Product Weight
. 6 -
Test Ho.4
Auoz Af:
oz Pt&Pd Cu Ki
Test Head (calc) 100.00 0.015 0.235 0.015 0.36 0.424
Ratio of Concentration; 15*6 to l
In solComposite Head - 0.015 0.235 0.015 0.36 0,43 1.74Bulk CI. Cone. . 6.40 0.15 2.20 0.105 4.93 4.96 23.21Bulk CI. Tail 5.00 0.0175 0,47 0.077 0.20 0.44Plot. Tail 33.60 0,005 0.03 0.005 0,0340,096 -
33.43
Per Cent Distribution
Product
Bulk CI. Cone.
Bulk CI. Tail
Plot Tail
Test Head {calc)
' Au
64.
5.
29.
100.
AE
42
36
72
00
59.
10.
30.
100.
87
00
13
00
PtxVPd
44
29"25
100
.80
.53
.67
.00
Cu
88
2
8
100
.82
.79
.39
.00
Ni
74
5t
20
100
.78
.18
.04
.00
S
85.37w '
-
100,00
- 7 -
r J* Kc Test No*5
This test is a duplicate of Tost No.4, with coarser grinding.
Grindtoesh ®65 , ...fripp.Wt.jS 1.21 4.41
Reagents Used;
0150 f-200
7.52 10.29
- 200
76.57
The same as recorded for Test h'o.4*
A separation of the platinum group metals was made in this test to show the recovery of Pt and Pd in the bulk sulphide con centrate.
Flotation Results:
Product Weight
Tost No.5
oz ,ft Au
ozAK
oz Pt
oz Pd
^Cu
2 Ki
fi.^^S
Composite Head -* 0.015 0.235 0.005 0.01 0.36 0.43 1.7/
Bulk CI. Cone. 6.83 0.21 2.03 0.052 0.063 4.68 4.84 21.7C
Bulk CI. Tail 10.70 . 0.015 0.155 0.0175 0.0225 0.13 0.39
Plot, Tail 82.47 0.005 0.10 Trace 0.0025 0,03 0.07
Plot. Head 100.00 0.02 0.2380.0054 0.088 0.366 0.429
* Bulk CI. Tail - Insol: 35.56^: 3al. fractions-nil.
Ratio of Concentration 14.6 to 1
Per Cent Distribution
Product
Bulk
Bulk
Plot
CI. Cone.
CI. Tail
Tail
Au
71.47
7.99
20. ̂ k
Ag Pt
58
6
34
.33 65.48
.97 34.52
.70
Pd
49
27
23
.06
.44
.50
Cu
87
66
.13
.12
.75
Ni
76.
9.
13.
88
70
42
S
85.18*-
~
Test Head 100.00 100.00 100.00 100.00 100.00 100.00 100.00
- g -
J* .'c Test No*6; Bulk Flotation
This test was an attempt to improve the recovery of
copper and nickel in the- bulk sulphide concentrate and main
tain a high ratio of concentration.
The ore was ground with reagents at 60 per cent
solids as reported in Test No.5. The mill discharge was treated in the Denver 2000-gram Sub-A laboratory flotation cell. The
pulp was floated for 33 minutes. The rougher concentrate was
cleaned tv/ice. The cleaner tailings were combined for weight and assay.
Reagents Used: Lb. per ton of ore treated *
To Ball Mill Roughing; ' 1st Cleaning 2nd Cleaning
Xanthate,Z-6' 0.15 0.10 -
Pine Oil 0.05 '- -
Copper Sulphate 0.30 - -
Reagent 633 0.75 - 0.50 0.25 , .
Dowanol ' - - ' - '0.10 - 0.05
Sulphuric Acid - - 0.65
Aerofloat 25 - ' 0.05 - - '
Tice (Kins) 25 33 11 " 7
- 9 -
Flotation Results: Test No.6
Product Vf eightoz
# Auoz oz
Pt&Pd Cu #Hi
* S In sol
Composite Head - 0.015
Bulk CI. Cone. 5*09 0.16
Bulk CI. Tail li.20 0.015
Plot k Tail 83.71 0.005
Plot Head 100.00 0.015
0.235 0.015 0.36 0.*43 1.74
2.45 0.117 6.21 5.37 27.36 21.340.12 O 035 0.17 0.46 f
0.105 :.J05 O.Q3 0.095
0.226 0.0141 0.36 0.43
Ratio of Concentration 19.6 to l
Per Cent Distribution
Product Au Pt&Pd Cu Ni
Bulk CI. Cone.
Bulk CI. Tail
Plot. Tail
Plot. Head
60.97 55.17 42.36 87.75 69.52 80.04
11.18 5.95 27.88 5.28.. 11.93
27.85 38.88 29.76 6.97 18.50100.00 100.00 100,00 100.00 100.00 100.00
Lakefieid Research Limited Lakefieid,Ontario . -. September 3,1952.
HAWK TUNCTION
HAWK L
LAKEMOUNTl Win J-l
AN4AX EXPLORATION INC
LAKEMOUNT PROPERTYALGOMA
TOWNSHIP 28 RANGE XXIV
DRAWN: T.A.MtG. DATE : I4-ISI-67
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PARCEL 20/7
AMAX EXPLORATION INCLEGEND
LAKE MOUNT PROPERTYPLAN
TO ACCQMPANV ORE RESERVE SECTIONSOF 6EOLOGICAL CONTACT
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CONT0UAS IM PITDATUM SUNftrse LAKE ASSUMED tOOO PT
BLdOW LAKE A&SL^lED IOIO FT
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