Mint

Past Producer in Alaska, United States with commodities Silver, Gold, Copper, Lead
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  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 10001453
MRDS ID A012201
Record type Site
Current site name Mint
Related records 10209535

Geographic coordinates

Geographic coordinates: -149.36084, 62.86847 (WGS84)
Relative position Located on Portage Creek about 2 3/4 mi (4.4 km) north of confluence of Susitna River and Portage Creek; 9 mi (14.4 km) east of Chulitna; location accurate to within 1/4 mi (400 m).

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Talkeetna Mountains D-5(quadrangle 1:63,360 scale)

Talkeetna Mountains NW(quadrangle 1:100,000 scale)

Talkeetna Mountains(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Susitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Primary
Lead Primary

Materials information

Materials Type of material
Arsenopyrite Ore
Chalcopyrite Ore
Galena Ore
Miargyrite Ore
Pyrargyrite Ore
Pyrite Ore
Tennantite Ore
Quartz Gangue

Alteration

  • (Local) Altered andesitic dike

Mineral occurrence model information

Model code 78
USGS model code 20c
Deposit model name Porphyry Cu-Au
Mark3 model number 34
Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

(1) -149.36084, 62.86847

Economic information

Comments on the geologic information

  • Geologic Description = Host rocks are andesite, argillite, and graywacke. Age of sedimentary host rock is Cretaceous-Tertiary, age of associated igneous rock is Tertiary. Mineralization consists of quartz-sulfide veinlets and stockworks in brecciated argillite and graywacke that are cut by altered andesite dike; veinlets also in dike.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = Two short tunnels and an open cut yielded up to 270 ppm Ag, 3 ppm Au in rock analyses (Kurtak and others, 1992)

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Richter, 1963

General comments

Subject category Comment text
Deposit Model Name = Porphyry Cu-Au or polymetallic vein? (Cox and Singer, 1986; model 20c, or 22c?)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1996 Riehle, J. 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.