Alpha Mine

Past Producer in Alaska, United States with commodities Silver, Gold, Lead, Zinc, Antimony, Copper
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. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10000595
MRDS ID A011201
Record type Site
Current site name Alpha Mine

Geographic coordinates

Geographic coordinates: -151.01956, 63.52456 (WGS84)
Location accuracy 1000(meters)
Relative position NEAR THE TOP OF THE HILL N OF ELDORADO CREEK AND ABOUT ONE MILE W OF MOOSE CREEK, Within A Half Mile Radius

Site location context

Political divisions (FIPS codes)

Denali(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Denali C-3(quadrangle 1:63,360 scale)

Denali NE(quadrangle 1:100,000 scale)

Mount McKinley C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Denali National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Lead Secondary
Zinc Critical Tertiary
Antimony Critical Tertiary
Copper Tertiary

Comments on the commodity information

  • RELATIONSHIP OF COMMODITIES TO ORE MINERALS UNCERTAIN; CHALCOPYRITE IS DISSEMINATED IN SCHIST

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Stibnite Ore
Tetrahedrite Ore
Boulangerite Gangue
Jamesonite Gangue
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Analytical data

Result ASSAY (IN PPM) OF TWO GRAB SAMPLES AND ONE CHIP SAMPLE: CU: 2350, 800, 5000
Result PB: 65000, 11500, 185000
Result ZN: 18500, 7500, 46500
Result AG: 440, 320, 800
Result AU: .20, 0.0, .22
Result SB: 8600, 2950, 27800
Result ONE SAMPLE ASSAYED APPROXIMATELY 23 OZ/TON AG AND 18.5% PB

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Birch Creek Schist
    Rock description Birch Creek Schist
    Stratigraphic age (youngest) Early Cambrian
    Stratigraphic age (youngest) Early Cambrian

Nearby scientific data

(1) -151.01956, 63.52456

Economic information

Geologic structures

Type of structure Regional
Structure description Open, Nearly Symmetrical Kantishna Antiform Trending Ne
Type of structure Local
Structure description Nw Trending Fault System

Ore body information

  • General form VEIN
    Thickness 3.05M
    Length 91.44M

Controls for ore emplacement

  • Vein Probably Terminates On A Fault To The Ne

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1921
Year of last production 1921

Mining district

District name Kantishna District; Kantishna Mining Area

Land status

Ownership category National Park

Ownership information

  • Type Owner
    Owner Jim Fuksa Et Al.
    First year 1978

Comments on the production information

  • PRODUCED 10 TONS OF ORE CONTAINING 2,000 OZ AG AND 25 OZ AU IN 1921; THIS IS THE ONLY KNOWN PRODUCTION.

Comments on the reserve resource information

  • ADGGS RI 83-12, P. 17

Comments on the workings information

  • ALL WORKINGS CAVED IN 1931; TUNNEL HAD BEEN 120 FT WITH 100 FT TIMBERED; 20 FT SHAFT SITUATED 60 FT S 25 W OF THE END OF THE TIMBERING

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit VEIN IS EXPOSED FOR 300 FT ALONG STRIKE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-84 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-95 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey PUT DIMENSION DATA INTO THE ORE BODY FIELDS FROM THE DEPOSIT COMMENTS FIELD.

Beyond USGS

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

Authoritative Alaska resources

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