Deposit ID | 10001286 |
---|---|
MRDS ID | A012017 |
Record type | Site |
Current site name | Eagle River Mine |
Alternate or previous names | Amalga |
Related records | 10282475 |
Geographic coordinates: | -134.77731, 58.57336 (WGS84) |
---|---|
(click for info) |
Country | State |
---|---|
United States | Alaska |
Commodity | Importance |
---|---|
Gold | Primary |
Lead | Tertiary |
Copper | Tertiary |
Zinc | Tertiary |
Materials | Type of material |
---|---|
Chalcopyrite | Ore |
Copper | Ore |
Galena | Ore |
Sphalerite | Ore |
Pyrite | Gangue |
Pyrrhotite | Gangue |
Quartz | Gangue |
Result | SEE PRODUCTION DATA |
---|
Host or associated | Associated |
---|---|
Rock type | Plutonic Rock |
Host or associated | Host |
---|---|
Rock type | Metamorphic Rock > Metasedimentary Rock > Slate |
(1) | -134.77731, 58.57336 |
---|
Type of structure | Local |
---|---|
Structure description | Ore Bodies Cut Off And Offset By Numerous Faults |
Strike | N 30 W |
---|---|
Dip | 50 NE |
Plunge | 30 |
Development status | Past Producer |
---|---|
Commodity type | Metallic |
Deposit size | Small |
Significant | No |
Discovery year | 1902 |
Discoverer | L.O. Sandstone; Neil Ward |
Year of first production | 1903 |
Year of last production | 1916 |
District name | Juneau/Eagle River |
---|
Ownership category | State |
---|
Year | 1916 | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Period | 1903-1916 | ||||||||||||||
|
Type of workings | Underground |
---|---|
Length | 9966.96M |
Agency | Database name | Acronym | Record ID | Notes |
---|---|---|---|---|
USGS | Mineral Resources Data System | MRDS | A012017 |
USGS BULL 287, P. 130-131
USGS BULL 284, P. 35
USGS BULL 502, P. 44-46, PLATE 2, LOC. 12
USGS BULL 622, P. 101
USGS BULL 642, P. 76-77
USBM BULL 153, P. 23
USGS BULL 662, P. 77
USGS OFR 85-717, P. 139
USGS OFR 85-572, P. 167, NO. 59
STONE, DAVID AND STONE, BRENDA, 1983, HARD ROCK GOLD, THE STORY OF THE GREAT MINES THAT WERE THE HEARTBEAT OF JUNEAU: SEATTLE, WA, VANGUARD PRESS INC., P. 87
BAG-OFR-85-717-126
LINE 15: USGS BULL 1246, P. 158; LINE 16: STONE AND STONE, 1983, P. 87
Subject category | Comment text |
---|---|
Deposit | QUARTZ VEINS IN SHEAR ZONE CONTAIN ORE SHOOTS 5 TO 15 FT WIDE, 25-100 FT LONG; VEINS TERMINATE ON FAULTS; SULFIDES ARE PYRITE, PYRRHOTITE, ARSENOPYRITE, GALENA, SPHALERITE, CHALCOPYRITE; SOME NATIVE CU REPORTED |
Deposit | SEE ALSO: REX, JULIA GROUP; DISTORTION OF COUNTRY ROCKS DUE TO GRAVITY SLUMPING AND SURFACE CREEP IS PREVALENT IN THE MINE AREA; SOME DIFFICULTY WAS ENCOUNTERED IN KEEPING ADITS OPEN AND MANY CAVED DURING MINING PERIOD ; 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 |