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  3. Mineral Resource Data System (MRDS)

Unnamed (north of Slope Creek)

Occurrence in Alaska, United States with commodity Gold
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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. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10307484
Record type Site
Current site name Unnamed (north of Slope Creek)

Geographic coordinates

Geographic coordinates: -144.00262, 62.78968 (WGS84)
Relative position This occurrence is on the ridge about 1/4 mile north of Slope Creek on the boundary between the Gulkana D-1 quadrangle and the Nabesna D-6 quadrangle. It is an approximate location at the south end of an auriferous intrusion mostly exposed on the Nabesna D-6 quadrangle. It is in the SE1/4NE1/4, section 25, T. 12 N., R. 7 E., Copper River Meridian. The occurrence is within the 'area 2' anomalous zone of WGM Inc. (1980) and is within the Porcupine prospect area of Homestake Mining Company (Bull, Schneider and Freeman, 1997; Bull, Freeman, and Schneider, 1999).

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gulkana D-1(quadrangle 1:63,360 scale)

Gulkana NE(quadrangle 1:100,000 scale)

Gulkana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Copper River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Nearby scientific data

(1) -144.00262, 62.78968
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The occurrence is at the south end of a linear, Jurassic diorite intrusive complex that continues north to north-northwest for about 2 miles (Richter, 1966; Richter and Matson, 1968). A soil sample contains more than 100 ppb gold, and the north-flowing stream draining the area of the occurrence contains 2,700 ppb gold in stream sediments. Stream sediment samples draining the entire 2-mile long intrusion are extremely anomalous in gold i.e., from 1,000 to greater than 2,000 ppb. The streams drain the intrusion and its contact region and the gold is almost certainly derived from mineral deposits in the intrusion or in its contact rocks.
  • Age = Probably related to the intrusion of a Jurassic diorite.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina

Comments on the workings information

  • Workings / Exploration = The area has only been explored by reconnaissance methods.

Reference information

Bibliographic references

  • Deposit

    Richter, D.H., 1966, Geology of the Slana district on south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geological Report 2l, 36b p., 3 sheets, scale 1:63,360.

  • Deposit

    Richter, D.H., and Matson, N.A., 1968, Distribution of gold and some base metals in the Slana area, eastern Alaska Range, Alaska: U.S. Geological Survey Circular 593, 20 p.

  • Deposit

    WGM Inc., 1980, 1979 Summary report of gold potential, Slana District, Ahtna project: WGM Inc., 10 p., 1:63,360-scale map. (Report held by Ahtna Mineral Co., Anchorage, Alaska).

  • Deposit

    Bull, Katharine, Schneider, Craig, and Freeman, Larry, 1997, Summary report for Ahtna Corporation: 12 p., appendices and maps. (Report available, Ahtna Minerals Co., Anchorage, Alaska).

  • Deposit

    Bull, Katharine, Freeman, Larry, and Schneider, Craig, 1999, Slana property summary report for Homestake Mining Company: 11 p. and analytical appendices. (Report available, Ahtna Minerals Co., Anchorage, Alaska).

Comments on the references

  • Primary Reference = Richter and Matson, 1968; Bull, Freeman, and Schneider, 1999

General comments

Subject category Comment text
Deposit Other Comments = Additional information can be obtained from Ahtna Minerals in Anchorage, Alaska.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-DEC-00 W.T. Ellis Alaska Earth Sciences
Reporter 06-DEC-00 Hawley, C.C. Hawley Resource Group
Reporter 06-DEC-00 W.J. Nokleberg 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.