Possible extension of mineral belts, northern part of Coeur d'Alene district, Idaho
Journal of Research of the U.S. Geological Survey
By: Garland B. Gott and Joseph M. Botbol
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Abstract
The ore deposits in the northern part of the Coeur d'Alene district are located within rocks of the Belt Supergroup that have been intruded by Cretaceous quartz monzonites. Lead-zinc-silver replacement veins constitute most of the deposits. The geometry of the district has been modified by post-ore faulting along the Osburn, Dobson Pass, and other faults. The original position of the Gem stocks, before their separation from the Diego Peak stocks by the Dobson Pass fault, can be approximately reconstructed by moving the truncated stocks and associated geochemical dispersion patterns back into matching positions. The known mineral belts are defined by dispersion patterns of both lead and the Pb:Zn ratio. Similar dispersion patterns of lead and the Pb:Zn ration northwest of the original position of the Gem stocks suggest that the mineral belts extend into that area.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Possible extension of mineral belts, northern part of Coeur d'Alene district, Idaho |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 3 |
| Issue | 1 |
| Year Published | 1975 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Mineral Resources Program |
| Description | 7 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Research of the U.S. Geological Survey |
| First page | 1 |
| Last page | 7 |
| Country | United States |
| State | Idaho |
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