Mountain Sheep Prospect

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10000861
MRDS ID A011514
Record type Site
Current site name Mountain Sheep Prospect

Geographic coordinates

Geographic coordinates: -144.05392, 61.66743 (WGS84)
Location accuracy 2000(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • BEST LOCATION: USGS BULL 745, PLATE III, LOC. 36. 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

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Malachite Gangue
Pyrite Gangue

Analytical data

Result NO DATA

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Nikolai Greenstone
    Rock description Nikolai Greenstone
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -144.05392, 61.66743

Comments on the geologic information

  • GEOL.COM: DEPOSIT IS 60 FT BELOW BASE OF CHITISTONE 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 Kotsina

Land status

Ownership category National Park

Workings at the site

  • Type of workings Surface/Underground
    Length 6.1M

Comments on the workings information

  • DEVELOPED BY SMALL OPEN CUTS AND 20 FT ADIT DRIVEN BEFORE 1923

Comments on development

  • EXPL.COM: ONLY DEVELOPMENT WAS 20 FT ADIT DRIVEN BEFORE 1923

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011514

Bibliographic references

  • Deposit

    USGS BULL 745, P. 103

  • Deposit

    USGS BULL 947-G, P. 130

  • Deposit

    USGS MF-438, LOC. 71

  • Deposit

    USGS OFR 80-892B, LOC. 57

  • Other Database

    BAG-OFR-80-892B-57

General comments

Subject category Comment text
Deposit FRACTURED NIKOLAI GREENSTONE CONTAINS DISSEMINATED PYRITE, BORNITEAND CHALCOPYRITE; A FEW THIN ZONES NO MORE THAN 1 IN THICK CONTAIN ABOUT 1% BORNITE BY VOLUME
Deposit SEE ALSO: BLUEBIRD PROSPECT ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-1995 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey PUT DIMENSION DATA INTO THE ORE BODY AND WORKINGS FIELDS FROM THE COMMENTS FIELD