Preliminary Geologic Map of the Little Piute Mountains, California; a Digital Database

Howard, Keith A.; Dennis, Michael L.; Karlstrom, Karl; Phelps, Geoffrey A.

Abstract:

Introduction The Little Piute Mountains in the eastern Mojave Desert expose a series of folds and thrust faults involving metamorphosed Paleozoic strata (Miller and others, 1982; Stone and others, 1983). Detailed mapping of these structures was undertaken to help elucidate regional Mesozoic structural evolution. Earlier geologic maps were prepared by Cooksley (1960a,b,c,d, generalized by Bishop, 1964) and Stone and others (1983). Deformed and metamorphosed Paleozoic and Triassic rocks form a stratal succession that was originally deposited in shallow seas on the North American craton. Based on lithologic sequence the units are correlated with unmetamorphosed equivalents 200 km to the northeast in the Grand Canyon, Arizona, and 35-50 km to the west in the Marble, Ship, and Providence Mountains, California (Stone and others, 1983). The Paleozoic sequence rests nonconformably on a heterogeneous basement of polydeformed Early Proterozoic gneiss (Miller and others, 1982; Wooden and Miller, 1990). Triassic and older rocks were deformed, metamorphosed to staurolite or andalusite grade, and intruded concordantly at their base by Late Cretaceous granodiorite (Miller and others, 1982).

Genre:

USGS Numbered Series

ProdID:

38101

Citation Author:

Howard, Keith A.; Dennis, Michael L.; Karlstrom, Karl; Phelps, Geoffrey A.

Citation Contributing Office:

USGS Western Earth Surface Processes

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Citation Language:

ENGLISH

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Citation LatN:

0350000

Citation LatS:

0342000

Citation LonE:

-1150000

Citation LonW:

-1153000

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Citation Phsyical Description:

Map (36 x 32 in); Cross Sections (15 x 26 in); Report; Database Explanation Pamphlet;3 Figures; Database Package; PostScript plottable files

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Citation Publisher:

U.S. Geological Survey

Citation Series:

Open-File Report

Citation Series Code:

OFR

Citation Series Number:

97-693

Citation Search Results Text:

Preliminary Geologic Map of the Little Piute Mountains, California; a Digital Database; 1997; OFR; 97-693; Howard, Keith A.; Dennis, Michael L.; Karlstrom, Karl; Phelps, Geoffrey A.

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Citation Year:

1997

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citation/reference

Text:

Preliminary Geologic Map of the Little Piute Mountains, California; a Digital Database; 1997; OFR; 97-693; Howard, Keith A.; Dennis, Michael L.; Karlstrom, Karl; Phelps, Geoffrey A.