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Geologic map of the Hogum quadrangle, White Pine County, Nevada [MAP AND TEXT]
Geol Hogum

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Title: Geologic map of the Hogum quadrangle, White Pine County, Nevada

Author: Elizabeth L. Miller
Year: 2023
Series: Open-File Report 2023-05
Format: 31 x 24.5 inches, color
Scale: 1:24,000

The Hogum quadrangle represents the northwesternmost exposures of rocks in the southern Snake Range. Bedrock exposure is minor compared to alluvium. Neoproterozoic to Cambrian age strata all display original bedding compared to strata of the same age beneath the Snake Range detachment fault in the northern Snake Range. These same rocks in the northern Snake Range have been thinned by ductile processes and have a strong mylonitic foliation and lineation (Miller et al., 1999a). Strata in the Hogum quadrangle are intruded by a Jurassic pluton and cut by normal faults. Poorly exposed biotite granite and associated pegmatite and aplite underlie the region from Strawberry Creek to the east to Weaver Creek on the west. This pluton has been informally named the Strawberry Creek granite and is dated at 160 Ma. It is coeval with the development of an east-dipping (with respect to bedding) cleavage in country rocks of appropriate composition and exhibits a contact metamorphic aureole, where staurolite and locally sillimanite and andalusite are developed. Extensive faulting prevents knowledge of specific unit thicknesses in the Hogum quadrangle. Values given are those listed in Miller et al. (1999b) that are based on all previous stratigraphic work in the region.

This geologic map was funded in part by the USGS National Cooperative Geologic Mapping Program under STATEMAP award number G21AC10873, 2021.

Suggested citation:
Miller, E.L., 2023, Geologic map of the Hogum quadrangle, White Pine County, Nevada: Nevada Bureau of Mines and Geology Open-File Report 2023-05, scale 1:24,000, 3 p.

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