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Hercules Mine

Past Producer in Alaska, United States with commodities Gold, Copper, Lead, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10000815
MRDS ID A011465
Record type Site
Current site name Hercules Mine
Alternate or previous names Millionaire, Slide
Related records 10282915

Geographic coordinates

Geographic coordinates: -146.36006, 61.22127 (WGS84)

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Valdez A-7(quadrangle 1:63,360 scale)

Valdez SW(quadrangle 1:100,000 scale)

Valdez(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Eastern Prince William Sound(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • LOCATION IS SHOWN ON VALDEZ A-7 QUADRANGLE AS HERCULES MINE 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
Copper Tertiary
Lead Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Calcite Gangue
Chlorite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue

Analytical data

Result SEMIQUANTITATIVE SPECTROGRAPHIC ANALYSIS: 10PPM AG, 70PPM CU, 10PPMPB, 500PPM ZN, AU NOT DETECTED
Result ATOMIC ABSORPTION ANALYSIS: 1.00 PPM AU, 20PPM CU, 65PPM PB, 60PPM ZN
Result SAMPLE 79BS28P, QUARTZ FROM MAIN VEIN ALONG SHEAR AT HERCULES MINE, PICKTHORN, 1982 M. S. THESIS

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Valdez Group
    Rock description Valdez Group
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -146.36006, 61.22127
ListMap

Economic information

Ore body information

  • Name HERCULES
    General form TABULAR
    Strike N 80 E}N 60 W
    Dip 70 N}70 N
    Width 0.76M
  • Name MILLIONAIRE
    General form TABULAR
    Strike N 80 E}N 60 W
    Dip 70 N}70 N
    Width 0.61M

Controls for ore emplacement

  • Fracture Control

Comments on the geologic information

  • SCHISTOSITY OF COUNTRY ROCK STRIKES S 70 W TO N 80 W, DIPS 65 TO 70N; AURIFEROUS VEINS GENERALLY PARALLEL TO SCHISTOSITY

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Port Valdez

Land status

Ownership category State

Workings at the site

  • Type of workings Surface/Underground
    Length 137.16M
  • Type of workings Surface/Underground
    Name of workings HERCULES
    Length 152.4M
  • Type of workings Surface/Underground
    Name of workings MILLIONAIRE
    Length 39.62M

Comments on the workings information

  • HERCULES: ABOUT 500 FT OF UNDERGROUND WORKINGS COMPLETED BY 1916; MILLIONAIRE: 130 FT OF WORKINGS AND STOPES ON VEIN, ANOTHER 450 FT TUNNEL ON SHEAR ZONE WITH QUARTZ, PYRITE AND MINOR AU; SLIDE: NO DATA ON WORKINGS

Comments on development

  • MILLIONAIRE CLAIM: LOCATED 1910, DEVELOPMENT REPORTED 1912,1913 AND 1968 SOME PRODUCTION IN 1937 AND POSSIBLY OTHER PREVIOUS PREVIOUS YEARS; HERCULES CLAIM: DEVELOPMENT 1912,1913 AND 1916 WITH SOME PROBABLE PRODUCTION IN 1946; SLIDE CLAIM: SMALL ORE SHIPMENT IN 1917, NO OTHER DADATA

Reference information

Bibliographic references

  • Deposit

    USGS BULL 520, P. 125

  • Deposit

    USGS BULL 622, P. 152-153, 165-166

  • Deposit

    USGS BULL 662, P. 190

  • Deposit

    USGS BULL 692, P. 150-151

  • Deposit

    USGS MF-438, LOC. 23

  • Deposit

    USGS OFR 80-892B, LOC. 20

  • Deposit

    PICKTHORN, WILLIAM, 1982, STABLE ISOTOPE AND FLUID INCLUSION STUDY OF THE PORT VALDEZ GOLD DISTRICT, SOUTHERN ALASKA: LOS ANGELES, CA, U. C. L. A., M. S. THESIS, 66 P.

  • Other Database

    BAG-OFR-80-892B-20

General comments

Subject category Comment text
Deposit HERCULES: QUARTZ-CARBONATE-CHLORITE VEIN 18 TO 30 IN WIDE WITH N 80 E STRIKE AND 70 N DIP CARRYING FREE GOLD, PYRITE, GALENA, SPHALERITE,PYRRHOTITE AND CHALCOPYRITE; MILLIONAIRE: QUARTZ VEIN 4 TO 24 IN WIDE WITH PYRITE, PYRRHOTITE, CHALCOPYRITE, GALENA AND VISIBLE GOLD STRIKES N60 W AND DIPS 70 N
Deposit SLIDE CLAIM MAY BE SYNONYMOUS WITH ANY OF THE GOLD-QUARTZ CLAIMS NEAR THE HEAD OF MINERAL CREEK; SEE ALSO: MONTE CARLO, CHESNA, SUNSHINE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-1995 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey PUT DIMENSION DATA INTO THE ORE BODY FIELDS FROM THE DEPOSIT COMMENTS FIELD.
Editor 14-APR-1995 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey PUT DIMENSION DATA INTO THE WORKINGS FIELDS FROM THE COMMENTS FIELD.

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.