| Deposit ID | 10400187 |
|---|---|
| Record type | Site |
| Current site name | Rimini |
| Geographic coordinates: | -112.24789, 46.4859 (WGS84) |
|---|
Political divisions (FIPS codes)
Lewis and Clark(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Chessman Reservoir(quadrangle 1:24,000 scale)
Butte North(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Missouri(hydrologic unit)
Upper Missouri(hydrologic accounting unit)
Missouri-Marias(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Helena-Lewis and Clark National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Lewis and Clark |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Lead | Secondary |
| Copper | Secondary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Galena | Ore |
| Sphalerite | Ore |
| Chalcopyrite | Ore |
| Tetrahedrite | Ore |
| Model code | 85 |
|---|---|
| USGS model code | 22c |
| Deposit model name | Polymetallic veins |
| Mark3 model number | 46 |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||
| Rock type qualifier | RHYOLITE FLOWS | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
| Rock unit name | BUTTE QUARTZ MONZONITE (BOULDER BATHOLITH) |
| (1) | -112.24789, 46.4859 |
|---|
| Type of structure | Regional |
|---|---|
| Structure name | Boulder Batholith |
| Type of structure | Local |
| Structure name | RED MOUNTAIN FAULT, LEE MOUNTAIN-VALLEY FORGE SHEAR ZONE |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Significant | Yes |
| Discovery year | 1864 |
| Year of first production | 1865 |
| Year of last production | 1950 |
| District name | Rimini (Vaughn) |
|---|
| Year | 1950 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1865-1950 | |||||||||||||||||||||
| Accuracy | Accurate | |||||||||||||||||||||
| ||||||||||||||||||||||
| Type | In-situ |
|---|---|
| Estimate year | 1988 |
| Total resources | 10300000mt ore |
| Type | In-situ |
|---|---|
| Name | Au |
| Estimate year | 1988 |
| Total resources | 14mt ore |
USGS BULL 842, P. 246-49
Pardee and Schrader,1933
Avery and others, 1989
USGS PP 428, P. 54-5
Becraft and others, 1963
USGS BULL 527, P. 80-2
USGS PP 610, P. 157-58
USGS BULL 1151, P. 88-92.
| Subject category | Comment text |
|---|---|
| Deposit | 3 PERIODS OF MINERALIZATION: THE OLDER (LATE CRET) AND MORE PRODUCTIVE ORE BODIES ARE AURIFEROUS SILVER-LEAD VEINS IN TOURMALINIZED AND SERICITIZED QUARTZ MONZONITE IN THE UPPER PART OF THE BATHOLITH. THE TERTIARY DEPOSITS ARE LOW GRADE AND CONSIST OF ALTERED RHYOLITE IMPREGNATED WITH AU ALONG SMALL FRACTURES. IN SEVERAL MINE DUMPS RADIOACTIVE MATERIAL HAS BEEN FOUND |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.