1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Lake

Occurrence in Alaska, United States with commodity Gold
Map
XML
JSON
KML

Geologic information

Identification information

Deposit ID 10002650
MRDS ID A015090
Record type Site
Current site name Lake

Geographic coordinates

Geographic coordinates: -153.84246, 57.56939 (WGS84)
Relative position This site is located on the northwest tip of the peninsula separating Zachar and Amook Bays in sec. 18, T. 30 S., R. 28 W., of the Seward Meridian (Martin, 1913, locality 6; Cobb, 1972, MF 460, locality 3; MacKevett and Holloway, 1977, locality 3). Site location is accurate to within 1/2 mile.
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Arsenopyrite Ore
Gold 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

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -153.84246, 57.56939
List
Map

Comments on the geologic information

  • Geologic Description = This occurrence consists of a 12-inch thick quartz vein which strikes N. 70 E. and dips southeast. It cuts Cretaceous sandstone and shale and fills one of a series of rectangular joints. Minor amounts of arsenopyrite were observed. Acidic dikes occur in the vicinity.
  • Age = Cretaceous or younger

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Kodiak

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015090
USGS Alaska Resource Data File ARDF KD006

Bibliographic references

  • Deposit

    Becker, G.F., 1898, Reconnaissance of some gold fields of southern Alaska with some notes on general geology: U.S. Geological Survey 18th annual report, p. 7-86.

  • Deposit

    Martin, G.C., 1913, Mineral deposits of Kodiak and neighboring islands, in Brooks, A.H., and others, Mineral resources of Alaska, 1912: U.S. Geological Survey Bulletin 542, p. 125-136.

  • Deposit

    Capps, S.R., 1937, Kodiak and adjacent islands, Alaska, in Smith, P.S. and others, Mineral resources of Alaska, 1934: U.S. Geological Survey Bulletin 880, p. 111-184, 1 map 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 Afognak, Karluk, Kodiak, and Trinity Islands quadrangles, Alaska: U.S. Geological Survey Open-File Report 79-860, 49 p.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Kodiak quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-460, 1 map sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Becker, 1898

General comments

Subject category Comment text
Deposit Model Name = Chugach-type low-sulfide gold-quartz vein (Bliss, 1992; model 36a.1), turbidite-hosted gold vein.
Deposit Other Comments = No additional information is available since Becker's 1898 description.

Reporter information

Type Date Name Affiliation Comment
Reporter 24-SEP-1998 S.H. Pilcher U.S. Geological Survey