Deposit ID | 10001361 |
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MRDS ID | A012101 |
Record type | Site |
Current site name | Kensington Mine |
Related records | 10209864 |
Geographic coordinates: | -135.08873, 58.86586 (WGS84) |
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(click for info) |
Country | State |
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United States | Alaska |
Commodity | Importance |
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Gold | Primary |
Copper | Tertiary |
Lead | Tertiary |
Silver | Tertiary |
Materials | Type of material |
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Chalcopyrite | Ore |
Galena | Ore |
Albite | Gangue |
Quartz | Gangue |
Result | 0.208-0.29 OZ/TON AU FOR ASSAY BOUNDED AREAS OF 50-300 FT BY 75 TO 150 FT |
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Result | METZ AND WIEBMER, 1977 UNPUB. REPORT |
Host or associated | Associated | ||||
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Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||
Rock unit name | Jualin Diorite | ||||
Rock description | Jualin Diorite | ||||
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Host or associated | Host |
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Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
(1) | -135.08873, 58.86586 |
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General form | OTHER: ELLIPTICAL |
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Strike | N |
Dip | 67 E |
Depth to bottom | 304.8M |
Width | 24.38M |
Length | 48.77M |
Development status | Producer |
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Commodity type | Metallic |
Deposit size | Small |
Significant | No |
Discovery year | 1891 |
Year of first production | 1897 |
Year of last production | 1904 |
District name | Juneau/Berner'S Bay |
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Ownership category | National Forest |
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Type of workings | Surface/Underground |
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Length | 1524M |
Overall depth | 243.84M |
Agency | Database name | Acronym | Record ID | Notes |
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USGS | Mineral Resources Data System | MRDS | A012101 |
USGS BULL 287, P. 137
USGS BULL 284, P. 32-33
USGS BULL 446, P. 40-42
USGS BULL 592, P. 59
USGS BULL 1246, P. 159-160
ADGGS SR 38, P. 14
METZ, PAUL A. AND WIEBMER, JOHN D., 1977, M.I.R.L. SUMMARY FILE REPORT; EUREKA, KENSINGTON, COMET, JOHNSON AND JUALIN MINES, BERNER'S BAY JUNEAU DISTRICT, ALASKA: UNPUBLISHED MINING FEASIBILITY STUDY SUBMITTED TO U.S.B.M.
USGS OFR85-717, NO. J093
BAG-OFR-85-717-093
Subject category | Comment text |
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Deposit | STOCKWORK OF IRREGULAR 1 IN-1 FT QUARTZ VEINS IN HIGH ANGLE ZONES OF SHEARED AND CHLORITIZED DIORITE; ORE BODY IS ELLIPTICAL IN PLAN VIEW, 80 BY 160 FT WITH LONG AXIS TRENDING N-S; VERTICAL EXTENT OVER 1000 FT; SULFIDES: DOMINANTLY PYRITE, SOME CHALCOPYRITE AND RARE GALENA; PYRITE VARIES FROM DISSEMINATED EUHEDRAL CRYSTALS TO MASSIVE VEINS UP TO 1 FT WIDE |
Deposit | SEE ALSO: JOHNSON, EUREKA, COMET, JUALIN ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT |
Type | Date | Name | Affiliation | Comment |
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Reporter | 01-NOV-1985 | Leonard, Kenneth R. (Elliott, R. L.) | U.S. Geological Survey |