Geologic, geochemical, and geophysical investigations in the northern part of the Gilmore mining district, Lemhi County, Idaho
Open-File Report
70-282
By: Edward Thompson Ruppel, K. C. Watts, and Donald L. Peterson
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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.
Suggested Citation
Ruppel, E.T., Watts, K.C., Peterson, D.L., 1970, Geologic, geochemical, and geophysical investigations in the northern part of the Gilmore mining district, Lemhi County, Idaho: U.S. Geological Survey Open-File Report 70-282, 56 p. ill., maps ;27 cm., https://doi.org/10.3133/ofr70282.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geologic, geochemical, and geophysical investigations in the northern part of the Gilmore mining district, Lemhi County, Idaho |
| Series title | Open-File Report |
| Series number | 70-282 |
| DOI | 10.3133/ofr70282 |
| Year Published | 1970 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey], |
| Description | 56 p. ill., maps ;27 cm. |