1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Jack Creek

Prospect in Alaska, United States with commodity Copper
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Links to other databases
  10. Bibliographic references
  11. General comments
  12. Reporter information

Geologic information

Identification information

Deposit ID 10003557
MRDS ID A106314
Record type Site
Current site name Jack Creek

Geographic coordinates

Geographic coordinates: -153.24242, 57.1594 (WGS84)
Relative position This prospect is located on northwest Sitkalidak Island approximately 2 miles south of the head of Amee Bay. Site location is accurate to within 1 mile.

Site location context

Political divisions (FIPS codes)

Kodiak Island(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kodiak A-4(quadrangle 1:63,360 scale)

Kodiak SW(quadrangle 1:100,000 scale)

Kodiak(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Kodiak-Afognak Islands(hydrologic unit)

Kodiak-Shelikof(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Old Harbor Native Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Pyrrhotite Ore

Nearby scientific data

(1) -153.24242, 57.1594
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This prospect consists of a shear zone containing thin seams of chalcopyrite and of several narrow veins containing chalcopyrite and pyrrhotite, all of which cut Cretaceous metasedimentary rock . The shear zone is approximately 20 feet in width. Two samples of the shear zone taken by Saunders (1952, PE 131-6, PE 131-8) assayed 1.36 percent copper over 7.5 feet and 1.26 percent copper over 6.3 feet. A narrow vein striking N. 5 E. and dipping 60 W contained 1.24 percent copper over 0.7 feet and 0.87 percent copper over 0.5 feet. Another vein striking N. 20 E. and dipping 85 W assayed 1.69 percent copper over 2.2 feet and 4.10 percent copper over 1.5 feet.
  • Age = Cretaceous or younger

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Comments on the workings information

  • Workings / Exploration = A cross-cut was driven on the shear zone in 1951 or 1952. Assays of the shear range from 1.26 to 1.36 percent copper over 6.3 and 7.5 feet. Assays of the veins range from 0.87 to 4.10 percent copper over 0.5 and 1.5 feet.

Reference information

Comments on the references

  • Primary Reference = Saunders, 1952, PE 131-6, PE 131-8

General comments

Subject category Comment text
Deposit Model Name = Copper-bearing shear zone and veinlets.
Deposit Other Comments = Site is located on land conveyed to the Koniag Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 13-OCT-1998 S.H. Pilcher U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.