| Deposit ID | 10002039 |
|---|---|
| MRDS ID | A012888 |
| Record type | Site |
| Current site name | Sophie Gulch Mine |
| Related records | 10160160 |
| Geographic coordinates: | -165.41772, 64.6115 (WGS84) |
|---|---|
| Relative position | ON TRIB. TO ROCK CREEK. |
Political divisions (FIPS codes)
Nome(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Nome C-1(quadrangle 1:63,360 scale)
Solomon NW(quadrangle 1:100,000 scale)
Nome(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Nome(hydrologic unit)
Norton Sound(hydrologic accounting unit)
Northwest(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Sitnasuak Native Corporation(ANCSA Village)
ANCSA Village NTVPIC(Type of land area)
NTVPIC(Federal land areas administered by NTVPIC)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Tungsten Critical | Primary |
| Gold | Tertiary |
| Lead | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Gold | Ore |
| Scheelite | Ore |
| Calcite | Gangue |
| Feldspar | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist > Mica Schist |
| (1) | -165.41772, 64.6115 |
|---|
| Strike | N 45 DEGREES E |
|---|---|
| Dip | 90 DEGREES TO STEEP NW |
| Thickness | 4.57M |
| Length | 304.8M |
| Width | 15.24M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1900 |
| Year of first production | 1916 |
| Year of last production | 1917 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A012888 |
USGS BULLETIN 662, P. 433, 436, 457.
USGS BULLETIN 722, P. 182, 233-234, 245-246.
USGS OFR 17, P. 3.
USBM RI 4174, P. 30-32.
USGS MF-247, LOC. 17.
USGS BULLETIN 1246, P. 121.
USGS BULLETIN 1374, P. 83.
USGS OFR 77-796-B, P. 29, LOC. 375-B.
BAG-MF-463-98
| Subject category | Comment text |
|---|---|
| Deposit | UNWEATHERED MATERIAL TOO LOW GRADE TO MINE, USGS, OFR 17, P. 3; LATER REPORTS OF SPHALERITE AND STIBNITE AT THIS PROSPECT APPEAR TO BE IN ERROR. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT |
| Deposit | ZONE OF RESIDUAL MATERIAL 3-15 FT THICK WAS DEVELOPED OVER SHEAR ZONE CONTAINING NUMEROUS IRREGULAR QUARTZ, QUARTZ-FELDSPAR, AND QUARTZ-CALCITE VEINS FROM LESS THAN 1 IN TO ABOUT 1 FT THICK; SCHEELITE-BEARING ZONE 50 FT BY 1000 FT; SCHEELITE AT VEIN MARGINS AND DISSEMINATED IN WALL ROCK; SURROUNDED BY PERIPHERAL ZONE OF AU DISSEMIANTED IN WALL ROCK; SCHEELITE-BEARING VEINS CROSS CUT BY ARSENOPYRITE-PYRITE-GALENA STRINGERS; SOME ARSENOPYRITE ALSO DISSEMIANTED IN WALL ROCK. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1987 | Leonard, Kenneth R. (Huber, Donald F.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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