| Deposit ID | 10100998 |
|---|---|
| MRDS ID | A013239 |
| Record type | Site |
| Current site name | Goldwin Gold-Silver Mine |
| Related records | 10258718 |
| Geographic coordinates: | -136.33511, 57.99221 (WGS84) |
|---|---|
| Elevation | 61 |
| Relative position | ON S SIDE OF LISIANSKI INLET 0.7 MI SW OF JUNCTION I. |
Political divisions (FIPS codes)
Hoonah-Angoon(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Sitka D-8(quadrangle 1:63,360 scale)
Sitka NW(quadrangle 1:100,000 scale)
Sitka W OE(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Central Southeast Alaska(hydrologic accounting unit)
Southeast Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Tongass National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Secondary |
| Copper | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Pyrite | Gangue |
| Quartz | Gangue |
| Result | MAXIMUM VALUE FROM VEIN IN UPPER PROSPECT IS 69 OZ/TON AU AND 5.3 OZ/TON AG, BUT MOST VALUES ARE MUCH LOWER. OTHER SAMPLES ONLY GAVE UP TO 0.24 OZ/TON AU AND 0.89 OZ/TON AG-USGS B 1058-E, P. 206. DURING MINING, ASSAYS WERE SAID TO AVERAGE $60/TON (1.7 OZ AU/TON IN 1939) ACCORDING TO USGS B 929, P. 145. |
|---|
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| General form | PINCH AND SWELL, LENS |
|---|---|
| Strike | VEIN 1: N 5-25 E, VEIN 2: N 60 E |
| Dip | VEIN 1: 50 NW, VEIN 2: 85 SE |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1920 |
| Discoverer | Schotter, Dodge, Borland |
| District name | Chichagof |
|---|
| Ownership category | National Forest |
|---|
| Type of workings | Surface/Underground |
|---|---|
| Length | 91.44M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A013239 |
USGS B 1058-E, P. 204-208 (1959)
USGS B 929, P. 145 (1941)
USGS MF-467, LOC. 3 (1972)
USGS MF-1476 B, LOC. 2
BAG-B-1058-E-FIG-41
| Subject category | Comment text |
|---|---|
| Deposit | LOWER PROSPECT CONSISTS OF N 5 DEGREES-25 DEGREES E STRIKING 50 DEGREES NW DIPPING QUARTZ VEIN PINCHING AND SWELLING FROM 0-2 FT. WIDE, WITH AVERAGE WIDTH OF 14 IN., AND 400 FT. LONG. VEIN IS IN DIORITE, AND CONTAINS SPARSE PYRITE, CHALCOPYRITE, AND GOLD. SECOND VEIN, IN UPPER PROSPECT, LIES IN SMALL FAULT STRIKING N 60 DEGREES E, DIPPING 85 DEGREES SE. VEIN IS LENTICULAR WITH MAXIMUM THICKNESS OF 2 FT., AND CONTAINS PYRITE AND GOLD. MAXIMUM LENGTH IS 240 FT. ALTERED DIORITE WALL ROCK CONTAINS SOME GOLD UP TO 4-8 FT. FROM FAULT. A THIRD, ALMOST INACCESSABLE VEIN ON E SIDE OF GULLY AT 1400 FT. ELEVATION IS FROM 5-8 IN. THICK, AND CONTAINS QUARTZ AND FREE GOLD. |
| Deposit | SAME DIORITE BODY AS EL NIDO MINE. ; INFO.SRC : 1 PUB LIT |
| 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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