Question Mark Prospect

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10000632
MRDS ID A011247
Record type Site
Current site name Question Mark Prospect

Geographic coordinates

Geographic coordinates: -151.16119, 63.20094 (WGS84)
Location accuracy 2000(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Copper Ore
Cuprite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Nearby scientific data

(1) -151.16119, 63.20094

Comments on the geologic information

  • SMALL MAFIC DIKE CUTS PALEOZOIC SHALE; CARRIES DISSEMINATED ORE; FELDSPAR PHENOCRYSTS IN DIKE; MUCH DECOMPOSED

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 A011247

Bibliographic references

  • Deposit

    USGS BULL 836, P. 321

  • Deposit

    USGS OFR 77-169 A, P. 46 LOC. 39

  • Other Database

    BAG-MF-366-29

General comments

Subject category Comment text
Deposit TISSUE LIKE SEAMS AND DISSEMINATED GRAINS OF COPPER IN MAFIC DIKE

Reporter information

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