| Deposit ID | 10100967 |
|---|---|
| MRDS ID | A012116 |
| Record type | Site |
| Current site name | Bear Mine |
| Geographic coordinates: | -135.09623, 58.86308 (WGS84) |
|---|
Political divisions (FIPS codes)
Juneau(Borough)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Juneau D-4(quadrangle 1:63,360 scale)
Juneau NW(quadrangle 1:100,000 scale)
Juneau(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lynn Canal(hydrologic unit)
Northern 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 |
| Copper | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Calcite | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Result | NO DATA AVAILABLE |
|---|
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||
| Rock unit name | Jualin Diorite | ||||
| Rock description | Jualin Diorite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| (1) | -135.09623, 58.86308 |
|---|
| Strike | N 20 W |
|---|---|
| Dip | 40-70 E |
| Thickness | 1.52M |
| Length | 91.44M |
| Depth to bottom | 60.96M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1891 |
| Year of first production | 1895 |
| Year of last production | 1897 |
| District name | Juneau/Berner'S Bay |
|---|
| Ownership category | National Forest |
|---|
| Type of workings | Surface/Underground |
|---|---|
| Length | 335.28M |
| Overall depth | 60.96M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A012116 |
USGS 18TH ANNUAL REPORT, PART 3, P. 62-63
USGS BULL 284, P. 32
USGS BULL 446, P. 39-40
USGS BULL 442, P. 77
USGS BULL 1246, P. 160
USGS OFR 85-717, NO. J092
BAG-OFR-85-717-092
| Subject category | Comment text |
|---|---|
| Deposit | 2 PYRITE AND CHALCOPYRITE BEARING AURIFEROUS QUARTZ VEINS IN DIORITE; BEAR VEIN: 2-5 FT WIDE, INTERSECTED BY TUNNEL 200 FT BELOW OUTCROP; OTHER VEIN SMALLER; PYRITE AND QUARTZ STRINGERS IN ALTERED WALL ROCK |
| Deposit | SEE ALSO: KENSINGTON, COMET, JOHNSON, EUREKA ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1985 | Leonard, Kenneth R. (Elliott, R. L.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.