Geologic, geochemical, and geophysical investigations in the northern part of the Gilmore mining district, Lemhi County, Idaho

Ruppel, Edward Thompson; Watts, K. C.; Peterson, Donald L.

Abstract:

Geologic, geochemical, and geophysical investigations in the northern part of the Gilmore (Texas) mining district, Lemhi County, Idaho, indicate an area of anomalous concentrations of lead and silver in glacial deposits. These deposits overlie the probable extensions of the main veins as them are projected northward from the central part of the district. The anomalous area is underlain by the Jefferson Formation, which is the most favorable host rock for mineral deposits in the district, and by quartz diorite and granodiorite of the Gilmore stock. The stock also appears to underlie part of the gravel-covered area east of the district, which suggests that this area is of possible interest for geochemical and geophysical prospecting.

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USGS Numbered Series

ProdID:

15736

Citation Author:

Ruppel, Edward Thompson; Watts, K. C.; Peterson, Donald L.

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ENGLISH

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56 p. ill., maps ;27 cm.

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U.S. Geological Survey],

Citation Series:

Open-File Report

Citation Series Code:

OFR

Citation Series Number:

70-282

Citation Search Results Text:

Geologic, geochemical, and geophysical investigations in the northern part of the Gilmore mining district, Lemhi County, Idaho; 1970; OFR; 70-282; Ruppel, Edward Thompson; Watts, K. C.; Peterson, Donald L.