| Deposit ID | 10105539 |
|---|---|
| MRDS ID | W007427 |
| Record type | Site |
| Current site name | Trigger Mine |
| Geographic coordinates: | -113.23091, 46.161 (WGS84) |
|---|---|
| Elevation | 1963 |
| Relative position | ON CENTER OF SOUTH SHORE OF SILVER LAKE |
Political divisions (FIPS codes)
Deer Lodge(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Silver Lake(quadrangle 1:24,000 scale)
Philipsburg(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Clark Fork(hydrologic unit)
Pend Oreille(hydrologic accounting unit)
Kootenai-Pend Oreille-Spokane(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
Beaverhead-Deerlodge National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Deer Lodge |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 005N | 013W | 28 | Montana |
| Commodity | Importance |
|---|---|
| Tungsten Critical | Primary |
| Materials | Type of material |
|---|---|
| Scheelite | Ore |
| Result | 0.05 TO 10% WO3, AVERAGE GRADE IS 1% WO3. |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Marble | ||||
| |||||
| (1) | -113.23091, 46.161 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Philipsburg Batholith |
| Type of structure | Local |
| Structure description | Several Small Granodiorite Outliers From The Philipsburg Batholith. Cable Stock Cable Stock |
| General form | PIPES AND LENSES |
|---|---|
| Strike | N 20 E |
| Dip | W |
| Length | 300M |
| Width | 5M |
| Depth to top | 0M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Year of last production | 1958 |
| District name | Silver Lake District |
|---|
| Ownership category | National Forest |
|---|
| Type | Operator |
|---|---|
| Owner | Silver Hill Tungsten Min. |
| Home office | C/O John Meldy, 301 E.8th Ave. Anaconda, MT |
| Type | Owner |
|---|---|
| Owner | Silver Hill Tungsten Min. |
| Type of workings | Surface/Underground |
|---|---|
| Area | 3HA |
| Length | 150M |
| Overall depth | 30M |
| Overall length | 274.32M |
| Overall width | 100M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W007427 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0300230023 |
USBM REP INVES 5612, P. 2, 27-32.
MBMG BULL 10, P. 16.
USGS-USBM MINERAL YEARBOOKS, 1956.
1906 GEOLMAP EMMONS AND CALKINS
1958 GEOLMAP USBM WALKER
USBM REP INVES 5612.
| Subject category | Comment text |
|---|---|
| Deposit | ORE BODIES ARE REPLACEMENT DEPOSITS. SCHEELITE IS PRESENT AS VERY PURE CRYSTALS IN SHEARED AND FRACTURED ZONES WITH MINOR AMOUNTS ALONG BEDDING PLANES. LARGEST LENS IS EXPOSED FOR A STRIKE LENGTH OF 400 FT. TO THE S THE ORE APPEAR TO BE CUT OFF BY A FAULT. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1975 | Krohn, Douglas H. | U.S. Geological Survey | |
| Updater | 01-DEC-1980 | Wise, Kristine K. (Elliott, James E.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.