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A A′

114°07'30"27'30" R. 20 W. R. 19 W.R. 21 W. R. 20 W. R. 19 W. R. 18 W. R. 18 W. R. 17 W.

R. 20 W. R. 19 W.R. 21 W. R. 20 W. R. 18 W. R. 17 W.

114°30'35°52'30"

36°

57'30"

35°52'30"

55'

36°114°07'30"15'22'30"114°30'

T. 30 N.

T. 29 N.

27'30" 25'

55'

25' 22'30" 20' 17'30" 15' 12'30” 10'

57'30"

T. 29 N.

T. 30 N.

10'12'30"17'30"20'

3980000m.N.

3975000m.N.

3985000m.N.

730000m.E. 740000m.E. 750000m.E.

3985000m.N.

3980000m.N.

3975000m.N.

730000m.E. 750000m.E. 740000m.E.

Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government

This map was printed on an electronic plotter directly from digital files. Dimensional calibration may vary between electronic plotters and between X and Y directions on the same plotter, and paper may change size due to atmospheric conditions; therefore, scale and proportions may not be true on plots of this map.

For sale by U.S. Geological Survey, Information Services, Box 25286, Federal Center, Denver, CO 80225, 1–888–ASK–USGS

Digital files available at https://doi.org/10.3133/sim3372

Suggested citation: Howard, K.A., Priest, S.S., Lundstrom, S.C., and Block, D.L., 2017, Geologic map of the northern White Hills, Mohave County, Arizona: U.S. Geological Survey Scientific Investigations Map 3372, pamphlet 31 p., scale 1:50,000, https://doi.org/10.3133/sim3372.

ISSN 2329-132X (online)

https://doi.org/10.3133/sim3372

Geologic Map of the Northern White Hills, Mohave County, ArizonaBy

Keith A. Howard, Susan S. Priest, Scott C. Lundstrom, and Debra L. Block2017

CONTOUR INTERVAL 40 FEETAPPROXIMATE MEANDECLINATION, 2017

11 / °1 2

MA

GN

ETI

C N

OR

TH

TRU

E N

OR

TH

Base from U.S. Geological Survey, Garnet Mountain NW, Senator Mountain NE, Senator Mountain NW, 1989, 1:24,000Transverse Mercator projection; 1927 North American Datum

Geology mapped by K.A. Howard, 1997−2009, and S.C. Lundstrom, 1997. Assisted by Zach Anderson, 2009. Includes selected structural data from Lucchitta (1966), Blacet (1975), Laney (1979a,b), Cascadden (1991), Duebendorfer and Sharp (1998), Blythe and others (2010), and Anderson and others (2013)GIS database and digital cartography by S.S. Priest and Debra L. BlockEdited by Taryn A. Lindquist; digital cartographic production by Kathryn NimzManuscript approved for publication November 21, 2016

Prepared in cooperation with theNational Park Service and Bureau of Land Management

U.S. Department of the InteriorU.S. Geological Survey

Scientific Investigations Map 3372Pamphlet accompanies map

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MESOPROTEROZOIC

PALEOPROTEROZOIC

CENOZOIC

UpperMiocene

LowerPliocene

MiddleMiocene

ANCIENT INTRUSIVE AND METAMORPHIC ROCKS

Local Unconformity

Angular Unconformity

Erosional Unconformity

Erosional Unconformity

Erosional Unconformity

CORRELATION OF MAP UNITS

[See Description of Map Units (in pamphlet) for precise unit ages]

Miocene

Pliocene

Pleistocene

Holocene

Tertiary(Neogene)

Quaternary

Miocene andProterozoic

SEDIMENTARY AND VOLCANIC ROCKS AND DEPOSITS

Nonconformity Below Miocene Rocks

LIST OF MAP UNITS

[See Description of Map units (in pamphlet) for complete unit descriptions]

SEDIMENTARY AND VOLCANIC ROCKS AND DEPOSITSTalus deposits (Quaternary)

Landslide and colluvium deposits (Quaternary)

Piedmont alluviumYoungest alluvium (Holocene)

Younger alluvium (Holocene)

Intermediate-age alluvium (Pleistocene)

Erosional UnconformityCalcrete (Pleistocene and Pliocene)

Old piedmont alluvial depositsOld alluvium (Pleistocene and Pliocene)

Older alluvium (Pliocene)

Erosional UnconformityAncestral Colorado River deposits (lower Pliocene)

Bullhead AlluviumBullhead Alluvium, undivided

Sand

GravelRiver deposits of uncertain stratigraphic position

River deposits, undivided

Sand

Gravel

Limestone-block rubble (lower Pliocene)

Erosional UnconformityCemented alluvial conglomerate of White Elephant Wash (lower Pliocene)

Deposits of Hualapai Wash (lower Pliocene)

Hualapai Limestone (upper Miocene)

Muddy Creek Formation(?) (upper Miocene)Mudstone

Gypsum

Conglomerate, undivided (upper and middle Miocene)

Upper conglomerate (upper Miocene)

Lower conglomerate (upper and middle Miocene)

Tephra bed(s) (Miocene)

Young olivine basalt (upper Miocene)

Olivine basalt (middle Miocene)

Intrusive basalt (Miocene)

Angular UnconformityMount Davis Volcanics (middle Miocene)

Basaltic andesite

Olivine-pyroxene basalt

Volcanic-clast conglomerate

Local Angular UnconformitySedimentary breccia and conglomerate, undivided (middle Miocene)

Old conglomerate

Megabreccia

Welded tuff (middle Miocene)

Breccia, conglomerate, granite, and gneiss, undivided (Miocene and Proterozoic)

Nonconformity Below Miocene Rocks

ANCIENT INTRUSIVE AND METAMORPHIC ROCKSDiabase (Mesoproterozoic)

Granite of Burro Spring (Mesoproterozoic)

Leucogranite of Greggs Hideout (Paleoproterozoic)

Gneiss, undivided (Paleoproterozoic)

Mafic and quartz-poor gneiss

Leucogranitic gneiss

Paragneiss, garnet fresh

Paragneiss, garnet partly retrograded

Paragneiss, garnet retrograded

EXPLANATION OF MAP SYMBOLS[Faults and folds are solid where location is certain; dashed where location is inferred; dotted where location is concealed. Queries added where identity or existence may be questionable]

Contact—Solid where location is certain

FaultsNormal fault—Bar and ball on downthrown side. Showing dip where known

Low-angle normal fault—Half-circles on upper plate

Folds—Showing trace of axial surface and direction of plunge where appropriateAnticline

Syncline

Synform

Strike and dip of bedding and volcanic layeringInclined—Showing dip where known

Horizontal

Strike and dip of foliation—Metamorphic or tectonic foliation in gneiss; compaction foliation in welded tuff

Inclined—Showing dip where known

Horizontal

Vertical

Slickenlines—Showing trend and plunge

Form lines on lithologic layering—Showing dip direction or verticality as interpreted from aerial imagery

Inclined

Vertical

Form line showing general orientation of metamorphic or tectonic foliation in cross section

Drill hole—Approximate location (see table 1)

Fluvial current direction—From imbrication and crossbedding in ancestral Colorado River deposits

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SEALEVEL

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1000

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METERS

A

D E T R I T A L V A L L E Y

DetritalWash

Trail RapidsWash Temple

Wash

T E M P L E B A S I N

Salt Spring Wash

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“LOSTBASINRANGE” FEET

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–4000

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–6000

–10,000

–8000

2000

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–1000

–2000

–3000

METERS

LOST

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nonmagnetic granite or gneiss(some Xgr lithotype in this zone)

ICEBERG CANYON FAULT

SALT SPRING FAULT

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