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Tazimina

Prospect in Alaska, United States with commodities Copper, Lead, Zinc, Silver
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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 10002129
MRDS ID A013020
Record type Site
Current site name Tazimina
Related records 10209911

Geographic coordinates

Geographic coordinates: -153.91264, 60.07943 (WGS84)
Relative position Locality is 4.8 km up an unnamed southward flowing tributary of Tazimina River or 5.6 km NE of the eastern end of Upper Tazimina Lake. This is locality 38 of Nelson and others (1985) and locality 37 of MacKevett and Holloway (1977). Sec. 22, T. 1 S., R. 27 W., of the Seward Meridian. Accurate within 1,600 meters.

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 A-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 Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Lead Primary
Zinc Critical Primary
Silver Secondary

Comments on the commodity information

  • Ore Material = Copper (native)

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Pyrite Ore
Copper Ore
Chlorite Gangue
Quartz Gangue
Sericite Gangue

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 Associated
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Lake Clark Schist Belt;Lake Clark Schist Belt
    Rock description Lake Clark Schist Belt;Lake Clark Schist Belt

Nearby scientific data

(1) -153.91264, 60.07943
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Mineralization is confined to older schistose rocks; the Lake Clark quartz-sericite-chlorite schist contains 1 percent to 10 percent disseminated pyrite and local massive-sulfide pods having as much as 50 percent pyrite. Chalcopyrite and native copper disseminated as small grains in trace amounts. Some six-inch sulfide veins or beds parallel to the foliation of schist contain 60 percent pyrite, 20 percent quartz, 10 percent magnetite, 5 percent chalcopyrite, 1 percent bornite, and trace of native copper. Massive sulfide float boulders up to six feet in diameter contain 17 ppm Ag, 5,000 ppm Cu, 5,000 ppm Pb, and 30,000 ppm Zn. These boulders could be glacial erratics but the source is believed to be within 90 meters of their current location (Resource Associates of Alaska, 1976).
  • Age = Late Paleozoic or younger.

Economic information about the deposit and operations

Development status Prospect
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 = Massive sulfide boulders up to six feet in diameter contain 17 ppm Ag, 5,000 ppm Cu, 5,000 ppm Pb, and 30,000 ppm Zn (Resource Associates of Alaska, 1976).

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

    Nelson, W.H., King, H.D., Case, J.E., Tripp, R.B., Crim, W.D., and Cooley, E.F., 1985, Mineral resource map of the Lake Clark quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1114-B, 1 sheet, scale 1:250,000.

Comments on the references

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

General comments

Subject category Comment text
Deposit Model Name = Kuroko massive sulfide (metamorphosed) ? (Cox and Singer, 1986; model 28a ?)
Deposit Other Comments = Resource Associates of Alaska, Inc. (1976), reported the schists do not contain enough economically viable mineralization to warrant further work. The massive sulfide boulders, though containing ore grade material, probably come from relatively small lenses or pods. 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.