Old Sourdough Prospect

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

Geologic information

Identification information

Deposit ID 10000629
MRDS ID A011243
Record type Site
Current site name Old Sourdough Prospect

Geographic coordinates

Geographic coordinates: -151.09814, 63.20983 (WGS84)
Location accuracy 500(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • PLOTTED FROM USBM OFR 24-78, FIG. 4.1-B 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
Lead Secondary
Zinc Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Malachite Ore
Sphalerite Ore
Pyrolusite Gangue
Pyrrhotite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -151.09814, 63.20983

Comments on the geologic information

  • MINERALIZATION IS IN PALEOZOIC METAMORPHICS CUT BY NE TRENDING GRANITIC TERTIARY DIKES; COUNTRY ROCK IS SHATTERED AND HIGHLY OXIDIZED

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 A011243

Bibliographic references

  • Deposit

    USGS BULL 836, P. 320-321

  • Deposit

    USGS OFR 77-169 A, P. 46 LOC. 41

  • Deposit

    USBM OFR 24-78, FIG. 4.1-B

General comments

Subject category Comment text
Deposit VEINS, DISSEMINATED GRAINS, AND BRECCIA FILLINGS IN SHATTERED METAMORPHIC COUNTRY ROCK; NEAR CONTACTS WITH IGNEOUS INTRUSIVE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1984 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 13-APR-1994 Mosier, Dan U.S. Geological Survey