Rusaw Creek

Occurrence in Alaska, United States with commodity Copper
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10000978
MRDS ID A011650
Record type Site
Current site name Rusaw Creek

Geographic coordinates

Geographic coordinates: -147.44263, 61.73959 (WGS84)
Relative position In mountains west of the South Fork of the Matanuska River. Sec. 15, T. 19 N., R. 11 E., of the Seward Meridian. Accurate within 1 mile. Locality 49 from Cobb (1972) and locality 38 of MacKevett and Holloway (1977).

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Anchorage C-2(quadrangle 1:63,360 scale)

Anchorage NE(quadrangle 1:100,000 scale)

Anchorage(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Matanuska(hydrologic unit)

Knik Arm(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Host
    Rock type
    Stratigraphic age (youngest) Jurassic

Nearby scientific data

(1) -147.44263, 61.73959

Economic information

Comments on the geologic information

  • Geologic Description = Disseminated chalcopyrite and magnetite in a small, mafic segregation in a Jurassic age quartz diorite (Jasper, 1965). Copper deposits probably similar to those reported on Sheep Mountain - ARDF number AN080 (Berg and Cobb, 1967).
  • Age = Jurassic or younger; mineralization hosted by mafic segregations in a Jurassic quartz diorite.
  • Age = Host rock is Jurassic.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Willow Creek

Comments on the workings information

  • Workings / Exploration = Unknown

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Jasper, 1965

General comments

Subject category Comment text
Deposit Model Name = Porphyry Cu ? (Cox and Singer, 1986; model 17 ?)
Deposit Other Comments = Reported to be similar to deposits at Sheep Mountain - ARDF number AN080.

Reporter information

Type Date Name Affiliation Comment
Reporter 30-JUL-1998 D.P. Bickerstaff U.S. Geological Survey
Reporter 30-JUL-1998 S.W. Huss U.S. Geological Survey

Beyond USGS

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

Authoritative Alaska resources

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