Deposit ID | 10002354 |
---|---|
MRDS ID | A013272 |
Record type | Site |
Current site name | Jumbo Gold Mine |
Alternate or previous names | Smith Prospects: Jumbo, Minnesota, Duluth Claims |
Related records | 10258801 |
Geographic coordinates: | -136.10702, 57.65332 (WGS84) |
---|---|
Elevation | 3 |
Relative position | 0.7 MI SW OF CHICHAGOF ON W SHORE OF KLAG BAY |
(click for info) |
Country | State |
---|---|
United States | Alaska |
Commodity | Importance |
---|---|
Gold | Primary |
Lead | Tertiary |
Zinc | Tertiary |
Materials | Type of material |
---|---|
Galena | Ore |
Sphalerite | Ore |
Pyrite | Gangue |
Quartz | Gangue |
Result | SURFACE QUARTZ ASSAYED BETWEEN 0.019 OZ/TON AND 0.116 OZ/TON AU-USGS B 929, P. 127 |
---|
Host or associated | Host | ||||
---|---|---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Siltstone | ||||
Rock unit name | Sitka Graywacke | ||||
Rock description | Sitka Graywacke | ||||
|
(1) | -136.10702, 57.65332 |
---|
Strike | VEIN-N 25 DEGREES W, FAULT-N 54 DEGREES W |
---|---|
Dip | VEIN-60 DEGREES SW, FAULT-62 DEGREES S |
Thickness | 0.61M |
Development status | Past Producer |
---|---|
Commodity type | Metallic |
Deposit size | Small |
Significant | No |
Discovery year | 1909 |
Discoverer | Louis H. Smith |
Year of first production | 1909 |
Year of last production | 1921 |
District name | Chichagof |
---|
Ownership category | National Forest |
---|
Type of workings | Surface/Underground |
---|---|
Length | 502.92M |
Overall depth | 121.92M |
Agency | Database name | Acronym | Record ID | Notes |
---|---|---|---|---|
USGS | Mineral Resources Data System | MRDS | A013272 |
USGS B 929, P. 126-128, PLATES 1, 3 (1941)
USGS OF 78-450, P. 64 (1978)
USGS MF-1476-B, P. 6, LOC. 17 (1982)
USGS MF-467, LOC. 32 (1972)
BAG-B-929-PL-1
Subject category | Comment text |
---|---|
Deposit | QUARTZ STRINGERS AND VEINS UP TO 2 FT. THICK EXPOSED FOR SEVERAL HUNDRED FT. IN CRUSHED ZONE IN GRAYWACKE. QUARTZ CONTAINS PYRITE, GALENA, SPHALERITE, AND FREE GOLD. |
Deposit | DETAILS OF EARLY PRODUCTION RATHER HAZY. ; INFO.SRC : 1 PUB LIT |
Type | Date | Name | Affiliation | Comment |
---|---|---|---|---|
Reporter | 01-JUN-1987 | Leonard, Kenneth R. (Huber, Donald F.) | U.S. Geological Survey |