| Deposit ID | 10038160 |
|---|---|
| MRDS ID | M045451 |
| Record type | Site |
| Current site name | Empire Mine |
| Alternate or previous names | Schnitzler |
| Included sites | Centennial Ridge District |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -106.183, 41.274 (WGS84) |
| Elevation | 2755 |
| Location accuracy | 10(meters) |
| Relative position | APPROXIMATELY 3 MI SOUTHWEST OF CENTENNIAL. Mine shown on topo corresponds with mine labeled on pl. 1 of McCallum. |
Political divisions (FIPS codes)
Albany(county)
Wyoming(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Centennial(quadrangle 1:24,000 scale)
Saratoga(quadrangle 1:100,000 scale)
Rawlins(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Laramie(hydrologic unit)
North Platte(hydrologic accounting unit)
North Platte(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Medicine Bow-Routt National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Wyoming | Albany |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 015N | 078W | 08,17 | NE4 OF NW4 (17) | Wyoming |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Platinum Critical | Secondary |
| Copper | Secondary |
| Iridium Critical | Tertiary |
| Rhodium Critical | Tertiary |
| Ruthenium Critical | Tertiary |
| Osmium | Tertiary |
| Palladium Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Chrysocolla | Ore |
| Malachite | Ore |
| Pyrite | Ore |
| Result | AG=TR-33.8 PPM, AU=TR-2.06 PPM, PT=TR-35.7 PPM, IR=TR-97.4 PPM, PD=TR-2,186 PPM IN RUSTY ROCK SAMPLES (CONVERTED FROM ORIGINAL OZ/TON, HESS 1926, P. 130-132) |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Gneiss | ||||
| |||||
| Main Entrance (1) | -106.183, 41.274 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Mullen Creek-Nash Fork Shear Zone |
| Type of structure | Local |
| Structure description | Fracture Systems |
| General form | VEINS |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Centennial Ridge District |
|---|
| Ownership category | National Forest |
|---|
| Type of workings | Underground |
|---|---|
| Length | 82.3M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M045451 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0560010127 | = newMRDS 10205150, merged and deleted. |
MCCALLUM, M.E., 1968, THE CENTENNIAL RIDGE GOLD-PLATINUM DISTRICT, ALBANY COUNTY, WYOMING: GEOLOGICAL SURVEY OF WYOMING PRELIMINARY REPORT 7, P. 9, 11.
HESS, F.L., 1926, PLATINUM NEAR CENTENNIAL, WYOMING: U.S. GEOLOGICAL SURVEY BULLETIN 780-C, P. 130-132.
HAUSEL, W.D., 1980, GOLD DISTRICTS OF WYOMING: GEOLOGICAL SURVEY OF WYOMING REPORT OF INVESTIGATIONS 23, P. 37.
HAUSEL, W.D., 1989, THE GEOLOGY OF WYOMING'S PRECIOUS METAL LODE AND PLACER DEPOSITS: GEOLOGICAL SURVEY OF WYOMING BULLETIN 68, P. 95.
| Subject category | Comment text |
|---|---|
| Deposit | PT-BEARING SULFIDES ARE IN LOWER ADIT; UNPUBLISHED MODEL NAME: NEW RAMBLER CU-AU-PGE. |
| Deposit | "In 1896, two copper prospect tunnels were driven along iron stained shear planes in a shear zone paralleling schistosity and foliation of the adjacent biotitic and hornblendic schists and gneisses. The upper drift penetrates the shear zone for about 100 feet and the lower drift about 170 feet. Sulphides taken from two crosscutting fracture systems and assayed in 1923 reportedly contained platinum metals along with gold and silver. Hess (1926, p. 130-132) reports the following value ranges: silver, a trace to 0.986 oz per ton; gold, a trace to 0.06 oz per ton; platinum, a trace to 1.04 oz per ton,; iridium (as determined may also include some rhodium, ruthenium, and/or osmium) up to 2.84 oz per ton; and palladium, up to 9.08 oz per ton. A third tunnel was driven thorugh talus into mafic schists and gneisses several hundred yards south of the first two drifts. Samples collected by Hess (1926, p. 32) from fault gouge in this tunnel showed little more than traces of platinum and gold and less than an ounce of silver per ton." (McCallum, 1968, p. 11) |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-75 | Blair, Will N. | U.S. Geological Survey | |
| Updater | 01-AUG-91 | Peterson, Jocelyn A. | U.S. Geological Survey | |
| Updater | 04-AUG-11 | Wilson, Anna B | U.S. Geological Survey | MAS 0560010127 = newMRDS 10205150, merged and deleted |
| Reporter | 18-NOV-83 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines | MAS 0560010127 = newMRDS 10205150 |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.