Unnamed Occurrence

Occurrence in Alaska, United States with commodities Copper, Zinc, Lead, Silver, Molybdenum

Geologic information

Identification information

Deposit ID 10001263
MRDS ID A011982
Record type Site
Current site name Unnamed Occurrence

Geographic coordinates

Geographic coordinates: -151.8984, 67.5916 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • ADGGS OFR 133 B, PLATE 1, LOC. 245 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Copper Primary
Zinc Primary
Lead Primary
Silver Primary
Molybdenum Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Hematite Gangue

Analytical data

Result 10 PPM AG, 7000 PPM CU, 100 PPM MO
Result SAMPLE 244, ADGGS OFR 133 B, TABLE 2

Host and associated rocks

  • Host or associated Associated
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Skajit Limestone
    Rock description Skajit Limestone
    Stratigraphic age (youngest) Middle Devonian
    Stratigraphic age (youngest) Middle Devonian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -151.8984, 67.5916

Comments on the geologic information

  • DEPOSIT AT FACIES CHANGE FROM METACLASTIC TO METACARBONATE ROCKS IN DEVONIAN SEDIMENTARY UNIT BELOW THRUST PLATE OF MIDDLE DEVONIAN SKAJIT LIMESTONE

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 National Park

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011982

Bibliographic references

  • Deposit

    USGS OFR 200

  • Deposit

    ADGGS OFR 133 B, SAMPLE NO. 244-5

  • Deposit

    USGS MF-469, LOC. 8

  • Other Database

    BAG-MF-469-08

General comments

Subject category Comment text
Deposit DISSEMINATED CHALCOPYRITE, SPHALERITE AND GALENA

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1986 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-1994 Mosier, Dan U.S. Geological Survey