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  3. Mineral Resource Data System (MRDS)

Otter Lake

Occurrence in Alaska, United States with commodities Copper, 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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10002136
MRDS ID A013027
Record type Site
Current site name Otter Lake

Geographic coordinates

Geographic coordinates: -153.79267, 60.47944 (WGS84)
Relative position Locality is on the slope about 650 m NW of Otter Lake. This is locality 14 of Nelson and others (1985) and locality 22 of MacKevett and Holloway (1977). Sec. 35, T. 5 N., R. 26 W., of the Seward Meridian. Locality is accurate to within 1.6 km. Coordinates are for a point in the center of the occurrence. The occurrence is 2.6 km wide and extends 3.2km NE and SW from plotted location.

Site location context

Political divisions (FIPS codes)

Lake and Peninsula(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lake Clark B-3(quadrangle 1:63,360 scale)

Lake Clark SE(quadrangle 1:100,000 scale)

Lake Clark(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lake Clark(hydrologic unit)

Kvichak-Port Heiden(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Lake Clark 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
Copper Primary
Zinc Critical Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Sphalerite Ore

Alteration

  • (Local) Unknown

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Host
    Rock type
    Stratigraphic age (youngest) Paleozoic

Nearby scientific data

(1) -153.79267, 60.47944
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = West of Otter Lake, chlorite schists contain interbedded argillites, cherts, and recrystallized limestone. The schist contains disseminated chalcopyrite in massive pyrite. Within the Lake Clark schist belt. MacKevett and Holloway (1977) describe the rocks as Paleozoic (?) schists, largely of volcanic derivation; inlcudes both mafic and felsic volcanic schist. Felsic meta-volcanic rocks northeast of Portage Lake (located NW of Otter Lake) are considered to be a favorable host for network type copper-zinc deposit (Resource Associates of Alaska, 1976). Limestone beds are common hosts for mineralization.?
  • Age = Host is Paleozoic
  • Age = Host rock is Paleozoic.
  • Age = Host is Paleozoic
  • Age = Host rock is Paleozoic.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Bristol Bay

Comments on the production information

  • Production Notes = No production

Comments on the reserve resource information

  • Reserves = No reserves

Comments on the workings information

  • Workings / Exploration = Unknown

Reference information

Bibliographic references

  • Deposit

    Resource Associates of Alaska, Inc., 1976, Geology and geochemistry of certain land within the Lake Clark National Park: Contract report for U.S. Bureau of Mines, 109 p.

  • Deposit

    Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska - Supplement to Open-File Report 76-485: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.

  • Deposit

    Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska - Supplement to Open-File Report 76-485: U.S. Geological Survey Open-File Report 81-1343-B, 20 p.

  • 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.

Comments on the references

  • Primary Reference = Resource Associates of Alaska, Inc., 1976

General comments

Subject category Comment text
Deposit Model Name = Kuroko massive sulfide ? (Cox and Singer, 1986; model 28a ?)
Deposit Other Comments = Site is in Lake Clark National Park and Preserve.

Reporter information

Type Date Name Affiliation Comment
Reporter 15-JUN-1998 M.L. Miller U.S. Geological Survey
Reporter 15-JUN-1998 D.P. Bickerstaff U.S. Geological Survey

Beyond USGS

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

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.