Unnamed Occurrence

Occurrence in Alaska, United States with commodities Copper, Gold, Silver

Geologic information

Identification information

Deposit ID 10001101
MRDS ID A011787
Record type Site
Current site name Unnamed Occurrence

Geographic coordinates

Geographic coordinates: -145.98079, 63.30272 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • BEST LOCATION: ADGGS GR 14, FIGURE 2, LOC. 7 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991). ; INFO FROM LAND.ST :49?

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Garnet Gangue
Magnetite Gangue
Pyroxene Gangue
Quartz Gangue

Analytical data

Result 0.42% CU, 0.01 OZ/TON AU, 0.40 OZ/TON AG, ADGGS GR14, P.28

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)

Nearby scientific data

(1) -145.98079, 63.30272

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Delta River

Comments on the workings information

  • SOME PITTING AND TRENCHING

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011787

Bibliographic references

  • Deposit

    ADGGS GR 14, P. 28, 33-34, LOC.7

General comments

Subject category Comment text
Deposit TACTITE REPLACED ZONE SEVERAL FT WIDE IN CHERTY LIMESTONE CONTAINS CHALCOPYRITE, MAGNETITE AND PYRITE; OLD PLACER WORKINGS NEARBY

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey