Unnamed Occurrence

Occurrence in Alaska, United States with commodities Zinc, Iron

Geologic information

Identification information

Deposit ID 10001248
MRDS ID A011967
Record type Site
Current site name Unnamed Occurrence

Geographic coordinates

Geographic coordinates: -152.87508, 67.41241 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • ADGGS OFR 133B, PLATE 1, NO. 57 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Zinc Primary
Iron Primary

Materials information

Materials Type of material
Sphalerite Ore
Pyrite Gangue
Magnetite Unknown

Analytical data

Result 500 PPM ZN, MORE THAN 20% FE, GRAB SAMPLE, ADGGS OFR 133B, TABLE 2,NO. 57

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)

Nearby scientific data

(1) -152.87508, 67.41241

Comments on the geologic information

  • TACTITE DEPOSIT ALONG CONTACT OF GRANITIC PLUTON

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Koyukuk

Land status

Ownership category State

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011967

Bibliographic references

  • Deposit

    ADGGS OFR 133B, SAMPLE 57

General comments

Subject category Comment text
Deposit MAGNETITE, SPHALERITE AND PYRITE IN TACTITE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1986 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey