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Ebner Mine

Producer in Alaska, United States with commodities Gold, Silver, Lead, Zinc, Copper, Barium-Barite
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Geologic information

Identification information

Deposit ID 10001304
MRDS ID A012043
Record type Site
Current site name Ebner Mine
Alternate or previous names U.S. Smetting, Refining and Exploration, Ebner Group, Humboldt
Related records 10209629

Geographic coordinates

Geographic coordinates: -134.37368, 58.31225 (WGS84)
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Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 041S 067E 13 S2 Alaska

Comments on the location information

  • CLUSTER OF ADITS N OF EBNER TUNNEL; EBNER GROUP AND HUMBOLDT PROPERTIES COVERED MOST OF THE SOUTH HALF OF SEC 13, T. 415, R. 67 E. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Secondary
Zinc Tertiary
Copper Tertiary
Barium-Barite Tertiary

Comments on the commodity information

  • UNCERTAIN IF PB WAS PRODUCED; PB WAS AN IMPORTANT BY-PRODUCT FOR ALASKA-JUNEAU MINES

Materials information

Materials Type of material
Chalcopyrite Ore
Sphalerite Ore
Biotite Gangue
Calcite Gangue
Magnetite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue
Sericite Gangue
Tourmaline Gangue

Analytical data

Result .2-.5% BA, .1-.3% CU, 1-2 PPM AG, UP TO 12 PPM AU, ROCK CHIP SAMPLES, USGS OFR 85-717, P. 173

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Gastineau Volcanics;Gastineau Volcanics;Gastineau Volcanics
    Rock description Gastineau Volcanics;Gastineau Volcanics;Gastineau Volcanics
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite
    Rock unit name Perseverance Slate;Perseverance Slate
    Rock description Perseverance Slate;Perseverance Slate

Nearby scientific data

(1) -134.37368, 58.31225
ListMap

Ore body information

  • Thickness 27.43M
    Depth to bottom 152.4M
    Width 91.44M
    Length 152.4M

Comments on the geologic information

  • SEE ALASKA-JUNEAU COMMENTS; AMPHIBOLITE IN PERSEVERANCE SLATE DESCRIBED AS "METAGABBRO" SILLS IN SOME REFERENCES. PERSEVERANCE SLATE; MZ SLATE METAMORPHOSED TO PHYLLITE AND SEMISCHIST; SILL-LIKE AMPHIBOLITE BODIES. GASTINEAU VOLCANICS; MZ TUFFS, LAVA FLOWS AND SLATES METAMORPHOSED TO GREENSTONE AND GREENSCHIST.

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Both metallic and non-metallic
Deposit size Small
Significant No
Discovery year 1880
Year of first production 1885
Year of last production 1944

Mining district

District name Juneau/Gold Creek

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Surface/Underground
    Area 97.128HA

Comments on the workings information

  • DEVELOPMENT AS OF 1906: 4000 FT OF UNDERGROUND WORKINGS AND SEVERAL OPEN PITS; LARGE SCALE DEVELOPMENT BETWEEN 1912-1920 ADDED SEVERAL THOUSAND FT MORE; CONNECTED TO ALASKA-JUNEAU MINE IN 1925; WORKINGS REPORTED OPEN IN 1985

Comments on development

  • STAKED 1880; 10-STAMP MILL INSTALLED 1888; MINED UNTIL 1907; ADIT BEGAN IN 1912 TO UNDERCUT ORE PROVED DISCOURAGING; ALL OPERATIONS HALTED 1920; OPTIONED BY ALASKA-JUNEAU GOLD MINING CO. IN 1925; OPERATED ON A ROYALTY BASIS 1925-1944; 15 PATENTED LODE CLAIMS, IN PART DUPLICATES WITH A.J. CLAIMS

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012043

Bibliographic references

  • Deposit

    USGS 18TH ANNUAL REPORT, PT. 3, P. 62-63, 73

  • Deposit

    USGS BULL 287, P. 58, 66-69

  • Deposit

    USGS BULL 284, P. 37

  • Deposit

    USGS BULL 662, P. 96, 98, 100-101

  • Deposit

    USGS BULL 783, P. 7

  • Deposit

    USGS OFR 60, P. 16-17

  • Deposit

    USGS PP 610, P. 20

  • Deposit

    USGS OFR 85-395

  • Deposit

    USGS OFR 85-717, P. 173

  • Other Database

    BAG-OFR-85-717-160

General comments

Subject category Comment text
Deposit NORTHERN EXTENSION OF ALASKA-JUNEAU LODE SYSTEM; ZONE 800-1500 FT WIDE CONTAINS NUMEROUS QUARTZ VEINS 1-2 FT THICK AND STRINGERS IN METAMORPHOSED SLATE AND THREE SILL-LIKE AMPHIBOLITE BODIES; ORE ASSAY BOUNDED; MINED AREA 60-90 FT WIDE, 200-300 FT LONG AND 300-500 FT VERICAL EXTENT; VEINS LARGER AND MORE NUMEROUS IN AMPHIBOLITE, ESPECIALLY NEAR CONTACT WITH SLATE, PYRRHOTITE IS PRINCIPAL SULFIDE
Deposit SEE ALSO: ALASKA-JUNEAU, PERSEVERANCE; LODE SYSTEM CHARACTERIZED BY NUMEROUS LOW GRADE QUARTZ VEINS TOO SMALL AND DISCONTINUOUS TO BE MINED SELECTIVELY, BUT PERVASIVE ENOUGH TO BE MINED ALONG WITH COUNTRY ROCK IN LARGE TONNAGES ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-1994 Mosier, Dan U.S. Geological Survey