Unnamed Occurrence

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

Geologic information

Identification information

Deposit ID 10001257
MRDS ID A011976
Record type Site
Current site name Unnamed Occurrence

Geographic coordinates

Geographic coordinates: -152.92006, 67.3163 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • ADGGS OFR 133B, PLATE1, NO. 218 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
Lead Primary
Silver Primary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore

Analytical data

Result SAMPLE 218: 20% FE, 100 PPM AG, 1500 PPM AS, 10,000 PPM PB, MORE THAN 10,000 PPM ZN (40,000 PPM ZN BY ATOMIC ABSORPTION), SEMIQUANT. SPEC. DATA
Result SAMPLE 220: 7% FE, 20 PPM AG, 500 PPM AS, 1500 PPM PB, 500 PPM ZN (100 PPM ZN BY AA), SEMIQUANT. SPEC DATA, COMPOSITE SAMPLE
Result ADGGS OFR 133B, TABLE 2

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -152.92006, 67.3163

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 A011976

Bibliographic references

  • Deposit

    ADGGS OFR 133B, SAMPLES 218, 220

General comments

Subject category Comment text
Deposit METASEDIMENTARY ROCKS LOCALLY CONTAIN 10-20% DISSEMINATED PYRITE, ARSENOPYRITE, 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