Perseverance Mine

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

Geologic information

Identification information

Deposit ID 10001319
MRDS ID A012058
Record type Site
Current site name Perseverance Mine
Alternate or previous names Alaska-Juneau Mining Co., Alaska Gastineau Gold Mining Co.
Related records 10112474

Geographic coordinates

Geographic coordinates: -134.337, 58.30003 (WGS84)
Relative position SOUTH OF, AND ADJOINING THE ALASKA-JUNEAU MINE
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • INTERSECTION OF ALEXANDER CROSSCUT AND SHEEP CREEK ADIT; JUST N OF MAIN ORE BODY AND LARGEST CONCENTRATION OF WORKINGS 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 Secondary
Lead Secondary
Zinc Tertiary
Copper Tertiary

Comments on the commodity information

  • AU STRONGLY ASSOCIATED WITH SULFIDES, ESP. SPHALERITE; AU: AG RATIO 1:1

Materials information

Materials Type of material
Chalcopyrite Ore
Sphalerite Ore
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue
Tourmaline Gangue

Alteration

  • (Local) Biotization

Analytical data

Result LOW GRADE AU DEPOSIT
Result 0.1 OZ/TON AG, 0.1% PB, 0.2% ZN, TRANS. AM. INST. MINING AND METALLURGICAL ENG., VOL. 63, P. 464

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Mt. Juneau Pluton
    Rock description Mt. Juneau Pluton
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
  • 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) -134.337, 58.30003

Geologic structures

Type Description Terms
Regional See Alaska-Juneau
Local Large Fold Shows Mass Of Small Folds In Hinge With Axial Planar Cleavage Parallel To Limbs Of Large Fold

Ore body information

  • Strike NW AVERAGE
    Dip 60-65 NE

Controls for ore emplacement

  • Ore Bodies Restricted To Footwall Of Perseverance Slate; Especially Localized Near Ends Of Amphibolite Bodies

Comments on the geologic information

  • SEE COMMENTS: ALASKA-JUNEAU. MT. JUNEAU PLUTON; PART OF COAST RANGE INTRUSIVE COMPLEX TO THE NE

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1885

Mining district

District name Juneau

Land status

Ownership category National Forest

Production statistics

  • Year 1910
    Material ORE
    Ore mined 1,097,672.35mt
    Description Ap_Grade: ^Tons Of Ore Milled: 1,115,294
  • Year 1911
    Material ORE
    Ore mined 1,862,881.94mt
    Description Ap_Grade: ^Tons Of Ore Milled: 1,892,788

Comments on the production information

  • GOLD AT 20.67 DOLLARS/FINE OZ; UNKNOWN AMOUNT OF PRODUCTION 1895-1907; PRODUCTION FIGURES DO NOT INCLUDE LESSER AMOUNTS OF SILVER, LEAD AND ZINC; PRODUCTION FROM 1934 TO 1944 INCLUDED AS PART OF ALASKA-JUNEAU MINE, SEE: ALASKA-JUNEAU

Workings at the site

  • Type of workings Surface/Underground
    Area 65.561HA
    Overall length 1463.04M
    Overall width 487.68M

Comments on the workings information

  • DEVELOPED 1915-1921 AS PART OF VERY LARGE SCALE OPERATIONS OF THE ALASKA GASTINEAU MINING CO.; DEVELOPMENTS INCLUDED 2500 FT ALEXANDER CROSSCUT, 12,000 FT SHEEP CREEK ADIT, 3 HYDROELECTRIC PLANTS AND 6000 TPD MILL; MINE WAS LATER CONNECTED TO A.J. MINE

Comments on development

  • STAKED 1885; LARGE SCALE DEVELOPMENT BEGAN IN 1915 UNDER ALASKA GASTINEAU MINING CO.; MINE CLOSED 1921 DUE TO LOW GRADE ORE; ACQUIRED BY ALASKA JUNEAU GOLD MINING CO. IN 1933; OPERATED AS PART OF A.J. MINE FROM 1934-TO MINE CLOSING IN 1944; SEE COMMENTS FOR ALASKA-JUNEAU; 10 PATENTED LODE CLAIMS

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012058

Bibliographic references

  • Deposit

    TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, VOL. 63, P. 464-506

  • Deposit

    USGS BULL 662, P. 80

  • Deposit

    USGS OFR 60, P. 17-19, 26

  • Deposit

    USGS BULL 917-C, P. 186-187

  • Deposit

    ADGGS GR 1, P. 1, 7

  • Deposit

    USGS BULL 287, P. 58-59, 74-76

  • Deposit

    USGS BULL 314, P. 55

  • Deposit

    USBM BULL 153, P. 17-18

  • Deposit

    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. 55

  • Deposit

    USGS OFR 85-717, P. 181

  • Other Database

    BAG-OFR-85-717-168

  • Production

    USGS BULL 917-C, P. 186, TABLE 5; USGS OFR 60, P. 26, TABLE 1; USGS OFR 85-717, NO. J168

General comments

Subject category Comment text
Deposit PART OF ALASKA JUNEAU LODE SYSTEM; NETWORK OF QUARTZ VEINS AND STRINGERS IN ZONE ABOUT 800 FT WIDE IN PERSEVERANCE SLATE; QUARTZ VEINS CONTAIN 1.5-2.0% SULFIDES, INCLUDING PYRRHOTITE, GALENA, SPHALERITE, PYRITE, RARE CHALCOPYRITE, AND ARSENOPYRITE
Deposit SEE ALSO: ALASKA-JUNEAU MINE; SOME DATA COMBINED FOR A.J., PERSEVERANCE AND EBNER AS THEY ARE ALL ON THE SAME LODE SYSTEM; REASONS FOR FAILURE OF ALASKA GASTINEAU LARGE SCALE, LOW GRADE ENTERPRISE: 1. OVERLY OPTIMISTIC INITIAL ESTIMATE OF GRADE, 2. UNCONTROLLED DILUTION OF ORE BY CAVING OF WASTE ROCK IN THE STOPES, 3. LABOR SHORTAGE AND INCREASE IN OPERATION COSTS DUE TO WWI, AND 4. REDUCED MILL EFFICIENCY DUE TO INTRODUCTION OF WET ORE INTO DRY-CRUSHING SYSTEM, USGS OFR 60, P. 19 ; 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