| Deposit ID | 10019750 |
|---|---|
| MRDS ID | DC11361 |
| Record type | Site |
| Current site name | Aurora Mine |
| Alternate or previous names | Aurora and Borealis |
| Geographic coordinates: | -112.33755, 45.6849 (WGS84) |
|---|---|
| Elevation | 1829 |
| Relative position | 2.5 MILES WEST OF SILVER STAR |
Political divisions (FIPS codes)
Madison(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Silver Star(quadrangle 1:24,000 scale)
Butte South(quadrangle 1:100,000 scale)
Dillon(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Jefferson(hydrologic unit)
Missouri Headwaters(hydrologic accounting unit)
Missouri Headwaters(hydrologic subregion)
Missouri(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Montana | Madison |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 002S | 006W | 03 | Montana |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Lead | Primary |
| Copper | Tertiary |
| Manganese Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Limonite | Gangue |
| Quartz | Gangue |
| Result | SELECTED ORE CONTAINS 2-3 OZ. AU/TON, 3-6 OZ. AG/TON, AND 5-8 % PB. DUMP GRAB SAMPLE HAD 15 OZ/TON AG, .07% CU, 2% PB AND .2% ZN. DUMP GRAB SAMPLE HAD 15 OZ/TON AG, .07% CU, 2% PB AND .2% ZN. |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Gneiss | ||||
| Rock unit name | Pre Belt Gneiss | ||||
| Rock description | Pre Belt Gneiss | ||||
| |||||
| (1) | -112.33755, 45.6849 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Fault Trending N45w |
| Strike | N 80 W |
|---|---|
| Dip | 40 S |
| Width | 0.91M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Year of first production | 1875 |
| District name | Silver Star District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Purves, A. And Hunt, H. |
| Home office | Laurin |
| First year | 1950 |
| Type of workings | Underground |
|---|---|
| Length | 914.4M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DC11361 |
REYNER, M.L., 1950, DIRECTORY OF MINING PROPERTIES-1949: MONT. BUREAU OF MINES AND GEOL., MEMOIR 31, P. 61.
MBMG MEM 19. P. 48.
CONSV. DIV. COMP. DATE, 03-31-1961
1950 GEOLMAP MBMG MEM. 1
MBMG MEM. 19.
| Subject category | Comment text |
|---|---|
| Deposit | VEIN RANGES FROM 3 INCHES TO 3 FEET. EASTERN PART OF VEIN IS OFFSET 100 FEET BY N45W TRENDING FAULT. |
| Deposit | MINE WAS NEVER WORKED ON LARGE SCALE. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1974 | Unknown | U.S. Geological Survey | |
| Updater | 01-JUL-1980 | Loen, Jeffrey S. (Pearson, Robert C.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.