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Wolverine

Prospect in Alaska, United States with commodities Gold, Copper
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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. 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 10000932
MRDS ID A011603
Record type Site
Current site name Wolverine
Related records 10137230

Geographic coordinates

Geographic coordinates: -149.40269, 61.78955 (WGS84)
Relative position On ridgetop to northwest of Craigie Creek, 1.3 mile northeast of VABM Box. Accurate within 1,500 ft. Locality 4 of Cobb (1972) and locality 4 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 D-7(quadrangle 1:63,360 scale)

Anchorage NW(quadrangle 1:100,000 scale)

Anchorage(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Susitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Copper Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Bornite Ore
Chalcopyrite Ore
Gold Ore
Pyrite Ore
Quartz Gangue

Alteration

  • (Local) Wall-rock alteration within a few inches of the veins is intense, but seldom extends more than 10 to 12 inches beyond the quartz filling. Sericitization and carbonate alteration predominate, but there is some pyritization and in the outer parts of the alteration zone chloritization is present (Ray, 1954).

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Nearby scientific data

(1) Klgr
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Tertiary and Late Cretaceous tonalite is cut by a granitic dike and quartz veins. Quartz veins, up to 16 inches wide, and narrow quartz stringers are generally in east-trending, north-dipping shear zones. Four faults and sixteen shear zones have been exposed in workings. Pyrite, arsenopyrite, and chalcopyrite reported in quartz vein, but these sulfides make up less than 2 percent of veins. Up to 3.6 oz/ton Au, but commonly less than 0.5 oz/ton Au (Jasper, 1962).? the tonalite is part of the Willow Creek Pluton, a zoned pluton. The outer part consists of hornblende quartz diorite and lesser hornblende tonalite; the core consists of hornblende-biotite granodiorite, and lesser hornblende-biotite quartz monzodiorite and biotite quartz monzonite. Wall-rock alteration within a few inches of the veins is intense, but seldom extends more than 10 to 12 inches beyond the quartz filling. Sericitization and carbonate alteration predominate, but there is some pyritization and in the outer parts of the alteration zone chloritization is present (Ray, 1954).
  • Age = Late Cretaceous or younger; the veins cut the Late Cretaceous Willow Creek Pluton.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Willow Creek

Comments on the production information

  • Production Notes = No known production.

Comments on the workings information

  • Workings / Exploration = Explored by 474 ft of underground workings; 323 ft of crosscuts, 56 ft of drifts, 75 ft raise, and 20 ft winze to the surface were reported. In additon, surface cuts were present. Gold values were up to 3.6 oz/ton Au, but commonly less than 0.5 oz/ton Au (Jasper, 1962).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Jasper, 1962

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)
Deposit Other Comments = the productive quartz veins of the district are restricted to those trending east/west and dipping north in major shear zones (Jasper, 1962).

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.

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.