| Deposit ID | 10019673 |
|---|---|
| MRDS ID | DC11104 |
| Record type | Site |
| Current site name | Obelisk Mine |
| Geographic coordinates: | -112.22227, 46.27129 (WGS84) |
|---|---|
| Location accuracy | 250(meters) |
| Relative position | 4.4 KM SW OF SUGARLOAF MT. |
Political divisions (FIPS codes)
Jefferson(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Thompson(quadrangle 1:24,000 scale)
Butte North(quadrangle 1:100,000 scale)
Butte(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Boulder(hydrologic unit)
Missouri Headwaters(hydrologic accounting unit)
Missouri Headwaters(hydrologic subregion)
Missouri(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Montana | Jefferson |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 006N | 005W | 15,16 | NW OF SW (15) | Montana |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Gold | Secondary |
| Copper | Secondary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Gold | Ore |
| Polybasite | Ore |
| Silver | Ore |
| Sphalerite | Ore |
| Calcite | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Rhodochrosite | Gangue |
| Siderite | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| Rock unit name | Boulder Batholith;Butte Quartz Monzonite |
| Rock description | Boulder Batholith;Butte Quartz Monzonite |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
| (1) | -112.22227, 46.27129 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Boulder Batholith |
| General form | BRECCIA PIPE |
|---|---|
| Plunge direction | 70 S, 15 W ON EASTERN END |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Basin (Cataract, Comet) District |
|---|
| Type | Operator |
|---|---|
| Owner | Obelisk Exploration Co. |
| Home office | Basin, Mt. |
| Type | Owner |
|---|---|
| Owner | E. F. Perkins |
| Home office | C/O John Mcgoff, Boulder, Mt. |
| Type of workings | Underground |
|---|---|
| Length | 457.2M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DC11104 |
MBMG BULL 30, P. 23.
MBMG BULL 16, P. 35.
USGS PP 428 P. 50, 97, PL. 1.
MBMG BULL 33, P. 15.
USGS-USBM MINERAL YEARBOOK 1960.
MBMG BULL 16, P. 35. USGS-USBM MINERAL YEARBOOK 1960
| Subject category | Comment text |
|---|---|
| Deposit | MINERALIZATION IN BRECCIA PIPE IS MAINLY ALONG CONDUIT THAT PLUNGES PARALLEL TO EASTERN END OF PIPE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1974 | Unknown | U.S. Geological Survey | |
| Updater | 01-AUG-1981 | Wise, Kristine K. (Elliott, James E.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.