Unnamed Occurrence

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

Geologic information

Identification information

Deposit ID 10000663
MRDS ID A011287
Record type Site
Current site name Unnamed Occurrence

Geographic coordinates

Geographic coordinates: -150.8765, 63.55235 (WGS84)
Location accuracy 1000(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Tertiary

Comments on the commodity information

  • "OXIDATION PRODUCTS" REPORTED

Materials information

Materials Type of material
Anglesite Ore
Galena Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue

Analytical data

Result GRAB SAMPLE ASSAY: 52.0% PB, 0.13% ZN, 78.5 OZ/TON AG, ADGGS OFR 98, P. 44 NO. 37

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
    Rock unit name Birch Creek
    Rock description Birch Creek
    Stratigraphic age (youngest) Early Cambrian

Nearby scientific data

(1) -150.8765, 63.55235

Ore body information

  • General form VEIN
    Strike N 10 W
    Dip STEEPLY DIPPING
    Thickness 0.61M

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Kantishna

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 A011287

Bibliographic references

  • Deposit

    ADGGS OFR 98, P. 34 AND 44. LOC. 37

  • Deposit

    USGS OFR 77-169A, P. 45 LOC. 12

General comments

Subject category Comment text
Deposit VEIN MINERALOGY: PYRITE-GALENA-QUARTZ-ANGLESITE-CARBONATE WITH MINOR SPHALERITE; SMALL SHOWING; GOOD SILVER ASSAYS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-84 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey