| Deposit ID | 10019642 |
|---|---|
| MRDS ID | DC11031 |
| Record type | Site |
| Current site name | Norwich-Platus Mine |
| Geographic coordinates: | -112.58006, 46.01796 (WGS84) |
|---|---|
| Location accuracy | 500(meters) |
| Relative position | ABOUT 1.5 KM W OF BIG BUTTE. |
Political divisions (FIPS codes)
Silver Bow(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Butte North(quadrangle 1:24,000 scale)
Butte North(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)
| Country | State | County |
|---|---|---|
| United States | Montana | Silver Bow |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 003N | 008W | 10,15 | SW OF SE (10) | Montana |
| Commodity | Importance |
|---|---|
| Manganese Critical | Primary |
| Silver | Secondary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Uranium | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Rhodochrosite | Ore |
| Sphalerite | Ore |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||
| Rock unit name | Butte Quartz Monzonite (Boulder Batholith) | ||||||
| Rock description | Butte Quartz Monzonite (Boulder Batholith) | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
| (1) | -112.58006, 46.01796 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Boulder Batholith |
| Strike | E-W |
|---|---|
| Dip | SOUTH |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Butte District |
|---|
| Type | Operator |
|---|---|
| Owner | Irving And Nelson |
| Home office | Silver Bow Bldg., Butte, Mt. |
| Type | Owner |
|---|---|
| Owner | Umont Mining, Inc. |
| Home office | King St., Dock, Burlington, Vt. Or 506 Silver Bow Bldg., Butte Mt. |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DC11031 |
USGS BULL 1074-B, P.21.
MBMG BULL 14, P. 41
USGS FILES
USGS-USBM MINERAL YEARBOOKS 1953-1956.
PMEA
| Subject category | Comment text |
|---|---|
| Deposit | 4 MANGANESE-BEARING VEINS. THE NORWICH VEIN IS WIDE, COMPLEX ALTERED SHEAR ZONE THAT HAS BEEN PARTLY FILLED AND REPLACED BY QUARTZ AND RHODOCHROSITE, SOME SPHALERITE, AND GALENA. THE VEIN IS OFFSET BY 2 TYPES OF FAULTS (1) THOSE PARALLEL TO THE VEIN (2)CROSS FAULTS THAT STRIKE NW TO N AND DIP NE OR E. THE VEIN IS MORE PERSISTENT TOWARDS THE W AND MORE HEAVILY MINERALIZED. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1974 | Unknown | U.S. Geological Survey | |
| Updater | 01-FEB-1984 | Wise, Kristine K. (Elliott, James E.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.