Geology and mineral resources of the Bouse Hills, La Paz County, west-central Arizona

Spencer, J.E.; Reynolds, S.J.

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BouseHills_AZGS-OFR90-09.pdf

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Citation

Spencer, J.E. and Reynolds, S.J., 1990, Geology and mineral resources of the Bouse Hills, La Paz County, west-central Arizona. Arizona Geological Survey Open File Report, OFR-90-09, 1 map sheet, map scale 1:24,000, 21 p.

Publisher

Arizona Geological Survey (Tucson, AZ)

Description

The Bouse Hills are located in west-central Arizona (Fig. 1) and are within the Basin and Range physiographic province of the Southwest. The Bouse Hills consist of four rock assemblages (Fig. 2), as follows: (1) Proterozoic crystalline rocks, (2) moderately to steeply tilted Oligocene(?) to lower Miocene volcanic and sedimentary rocks, (3) a Miocene pluton and related dikes, and (4) flat-lying to gently tilted Miocene volcanic and minor sedimentary rocks. Assemblages (1) and (2) were tilted by early Miocene rotational normal faulting that was widespread in the Basin and Range province (Spencer and Reynolds, 1989). In the Bouse Hills, tilting was probably related to movement on the Plomosa detachment fault which projects beneath the Bouse Hills from the west (Scarborough and Meader, 1989). Manganese and barite mineral deposits are mineralogically distinct, and fluid-inclusion data indicate that they were derived from aqueous fluids with different salinities. These deposits are confined to the Miocene volcanic and sedimentary rocks. This report includes a geologic map of the Bouse Hills at a scale of 1:24,000 (plate 1), descriptions of rock units (Appendix 1), and a stratigraphic correlation diagram (Fig. 3). Also included are descriptions of mineral deposits (Appendix 2) and a geologic map of some small hills northwest of the Bouse Hills (Fig. 4). (21 pages)

URI

http://hdl.handle.net/10150/630806

Additional Links

https://library.azgs.arizona.edu/item/AOFR-1552429532389-19

Language

Series/Report no.

OFR-90-09

Rights

Collection Information

Documents in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact azgs-info@email.arizona.edu.

North Bounding Coordinate

34.09

South Bounding Coordinate

33.875

West Bounding Coordinate

-114

East Bounding Coordinate

-113.813

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AZGS Document Repository