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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Sulzer

Prospect in Alaska, United States with commodity 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. 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 10000774
MRDS ID A011417
Record type Site
Current site name Sulzer
Alternate or previous names Cosmopolitan Group, O'hara Property

Geographic coordinates

Geographic coordinates: -141.46361, 62.20027 (WGS84)
Relative position Best location: Richter and others, 1973, USGS I-807, loc. 1; ridge between forks of the Snag River. Accurate within 100 ft. radius

Site location context

Political divisions (FIPS codes)

Southeast Fairbanks(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nabesna A-1(quadrangle 1:63,360 scale)

Nabesna SE(quadrangle 1:100,000 scale)

Nabesna(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Wrangell-St. Elias National Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Malachite Ore

Mineral occurrence model information

Model code 91
USGS model code 24b
Deposit model name Massive sulfide, Besshi (Japanese deposits)
Mark3 model number 30

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Nikolai Greenstone;Nikolai Greenstone
    Rock description Nikolai Greenstone;Nikolai Greenstone

Nearby scientific data

(1) -141.46361, 62.20027
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Malachite in fractures, amygdules, and volcanic breccias in amygdaloidal basalt flows of the Triassic Nikolai Greenstone. Tunnel was driven in a northwest- trending fracture zone at the contact between a flow breccia and an overlying amygdaloidal basalt flow.
  • Age = Late Triassic

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Explored by open cuts and 2 adits, one of which was 87 ft long; reported caved in 1940. Surface and underground workings.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Moffit, 1954, USGS B 989-D, p. 204-205

General comments

Subject category Comment text
Deposit Model Name = Massive sulfide
Deposit Other Comments = Nikolai Greenstone hostrock is known for its anomalous Cu content.

Reporter information

Type Date Name Affiliation Comment
Reporter 28-JAN-1997 Leonard, K.R. U.S. Geological Survey
Reporter 28-JAN-1997 Elliott, R.L. U.S. Geological Survey
Reporter 28-JAN-1997 Nokleberg, W.J. U.S. Geological Survey
Reporter 28-JAN-1997 W.J.; Richter, D.H. 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.