Ellamar Mine

Past Producer in Alaska, United States with commodities Copper, Gold, Silver, Zinc

Geologic information

Identification information

Deposit ID 10000490
MRDS ID A010674
Record type Site
Current site name Ellamar Mine
Alternate or previous names Gladhaugh Mine
Related records 10256117

Geographic coordinates

Geographic coordinates: -146.70254, 60.8982 (WGS84)
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary
Zinc Tertiary

Comments on the commodity information

  • GOLD IS IN TETRAHEDRITE AND SPHALERITE. SPHALERITE CARRIES AS MUCH AS 4.35 OZ/TON AU

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Sphalerite Ore
Tetrahedrite Ore
Calcite Gangue
Epidote Gangue
Graphite Gangue
Marcasite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue

Analytical data

Result CHIP SAMPLE ASSAYED 5.4% CU, 0.10 OZ/TON AU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Orca Group;Orca Group
    Rock description Orca Group;Orca Group

Nearby scientific data

(1) -146.70254, 60.8982

Ore body information

  • General form LENS
    Strike N35-45W
    Dip 30-80NE
    Plunge 45-75
    Width 38.1M
    Length 91.44M

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1897
Discovery method Ore-Mineral In Place
Year of first production 1901
Year of last production 1919

Comments on the production information

  • SIGNIFICANT UNKNOWN QUANTITIES OF AU AND AG PRODUCED AS WELL. MAY BE SUBSTANTIAL PRODUCTION AFTER 1931 (?)

Workings at the site

  • Type of workings Underground
    Length 1219.2M
    Overall depth 182.88M

Comments on the workings information

  • 8 LEVELS AND STOPES BETWEEN LEVELS. 4000 FT OF DRIFTS

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010674

Bibliographic references

  • Deposit

    USGS BULLETIN 605, P. 51-64, 87-92

  • Deposit

    USGS OPEN FILE 79-973, P. 19-22

  • Production

    USGS OPEN FILE REPORT 79-973, P. 19 USGS B 849-B.

General comments

Subject category Comment text
Deposit STEEPLY PITCHING STRATABOUND LENTICULAR MASSIVE SULFIDE LENS IN GRAYWACKE AND SLATE. ASSOCIATED WITH PILLOW BASALTS AND DIABASE DIKE. HANGING WALL IS A BARREN LENS OF MASSIVE PYRITE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1984 Hirschmann, M. M. (Elliott, R. L.) U.S. Geological Survey
Editor 13-APR-1994 Mosier, Dan U.S. Geological Survey