Alaska Homestake

Prospect in Alaska, United States with commodities Silver, Gold, Lead, Zinc

Geologic information

Identification information

Deposit ID 10000984
MRDS ID A011658
Record type Site
Current site name Alaska Homestake
Alternate or previous names Black and Hogan, SSSS, Bruno #4

Geographic coordinates

Geographic coordinates: -148.2826, 61.07956 (WGS84)
Relative position On north shore of Harriman Fiord, on eastern point of the inlet into which the Serpentine Glacier flows. Accurate within 0.5 mile. Locality 54 of Cobb (1972), locality 43 of MacKevett and Holloway (1977), and locality A-31 of Jansons and others (1984).
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Lead Secondary
Zinc Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Galena Ore
Sphalerite Ore
Quartz Gangue

Mineral occurrence model information

Model code 274
USGS model code 36a.1
Deposit model name Low-sulfide Au-quartz vein, Chugach-type
Mark3 model number 26

Nearby scientific data

(1) -148.2826, 61.07956

Comments on the geologic information

  • Geologic Description = Late Cretaceous Valdez Group graywacke cut by many altered granite dikes and other bodies of Tertiary age. Resulting fissure veins, 2 to 18 inches thick, in graywacke and one in granite dike are quartz-filled. Veins strike N 15 to 40 W, near vertically, and carry galena, gold, arsenpyrite, and sphalerite (Johnson, 1914).? Six samples contained up to 0.02 oz /ton Au and up to 0.04 oz /ton Ag. One vein sampled contained 1.99 oz/ton Au and .2 oz/ton Ag (Jansons and others, 1984).
  • Age = Tertiary or younger; veins cut Late Cretaceous Valdez Group graywacke and altered granite dikes of Tertiary age.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Prince William Sound

Comments on the production information

  • Production Notes = Recorded production of 83 oz gold and 33 oz silver (Jansons and others, 1984).

Comments on the workings information

  • Workings / Exploration = Johnson (1915) reports that in 1914, 250 ft of tunnels and 2 shallow shafts were reported to have been driven on the veins about 100 ft above sea level. Jansons and others (1984) reported two adits in excess of 275 ft in length with a 64 ft winze; the lower level was inaccessable. Six samples contained up to 0.02 oz /ton Au and up to 0.04 oz /ton Ag. One vein sampled contained 1.99 oz/ton Au and .2 oz/ton Ag. Moderate mineral development potential for a small mine if vein extension is located (Jansons and others, 1984).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011658
USGS Alaska Resource Data File ARDF AN115

Bibliographic references

  • Deposit

    Johnson, B.L., 1914, The Port Wells gold-lode district, Alaska: U.S. Geological Survey Bulletin 592-G, p. 195-236.

  • Deposit

    Johnson, B.L., 1915, Mining on Prince William Sound: U.S. Geological Survey Bulletin 622-E, p. 131-139.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.

  • Deposit

    Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, Southcentral Alaska: U.S. Bureau of Mines Open-File Report 5-84, 218 p., 2 sheets, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Anchorage quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-409, 1 sheet, scale 1:250,000.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

  • Deposit

    Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials in the Anchorage quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1095, 184 p.

Comments on the references

  • Primary Reference = Johnson, 1915

General comments

Subject category Comment text
Deposit Model Name = Chugach-type low-sulfide Au-quartz veins (Bliss, 1992; model 36a.1)

Reporter information

Type Date Name Affiliation Comment
Reporter 30-JUL-1998 D.P. Bickerstaff U.S. Geological Survey
Reporter 30-JUL-1998 S.W. Huss U.S. Geological Survey