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  3. Mineral Resource Data System (MRDS)

Unnamed (north of upper Schist Creek)

Occurrence in Alaska, United States with commodities Silver, Copper, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model 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 10307569
Record type Site
Current site name Unnamed (north of upper Schist Creek)

Geographic coordinates

Geographic coordinates: -148.61682, 63.47161 (WGS84)
Relative position This occurrence is at an elevation of about 4,500 feet, on a north-south ridge north of, and perpendicular to, upper Schist Creek. The map site is in the NW1/4 of sec. 1, T. 17 S., R. 6 W., of the Fairbanks Meridian. The location is accurate to within 1500 feet. This is location 9 of Clark and Cobb (1972).

Site location context

Political divisions (FIPS codes)

Denali(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy B-4(quadrangle 1:63,360 scale)

Healy S(quadrangle 1:100,000 scale)

Healy C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Copper Primary
Molybdenum Primary

Mineral occurrence model information

Model code 79
USGS model code 21a
Deposit model name Porphyry Cu-Mo
Mark3 model number 2

Nearby scientific data

(1) -148.61682, 63.47161
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks in the area of this occurrence are the Paleocene Cantwell Formation which consists of terrigenous sedimentary rocks, including a few thin coal beds, and Eocene-Oligocene granitic plutons that intrude the Cantwell (Wilson and others, 1998). The occurrence consists of unspecified copper, molybdenum and silver minerals in the granitic rocks (Clark and Cobb, 1972).
  • Age = Probably Eocene-Oligocene.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Bonnifield

Comments on the workings information

  • Workings / Exploration = There has been surface exploration only.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Clark and Cobb, 1972

General comments

Subject category Comment text
Deposit Model Name = Porphyry Cu-Mo(?) (Cox and Singer, 1986; 21a)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-00 N. Van Wyck Stevens Exploration Management Corporation

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.