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

Unnamed (near VABM Way)

Occurrence 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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10307583
Record type Site
Current site name Unnamed (near VABM Way)

Geographic coordinates

Geographic coordinates: -147.62275, 63.03262 (WGS84)
Relative position The site is located at an elevation of approximately 4,500 feet, 0.5 mile northeast of VABM 5896 (Way). The site is in the SE1/4 of sec. 6, T. 22 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1000 feet. This is location 40 of Clark and Cobb (1972).

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy A-2(quadrangle 1:63,360 scale)

Mount Hayes SW(quadrangle 1:100,000 scale)

Healy(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)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Pyrite Ore

Alteration

  • (Local) Oxidation of copper mineral(s) to malachite.

Mineral occurrence model information

Model code 90
USGS model code 24a
Deposit model name Massive sulfide, Cyprus
Mark3 model number 11

Host and associated rocks

  • Host or associated Host
    Rock type
    Stratigraphic age (youngest) Triassic
    Stratigraphic age (oldest) Late Pennsylvanian

Nearby scientific data

(1) -147.62275, 63.03262
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence is close to a thrust separating a slice of Lower Permian? and Pennsylvanian andesitic volcanic rocks from Middle Triassic to Upper Pennsylvanian metasedimentary rocks. Numerous large diabasic and gabbroic dikes and sills occur throughout the area (Wilson and others, 1998). The occurrence consists of pyrite and chalcopyrite disseminated in the volcanic rocks, and of secondary malachite.
  • Age = Sulfide minerals probably are syngenetic with their Triassic-Upper Pennsylvanian host rocks.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = Surface sampling only.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Kaufman, 1964

General comments

Subject category Comment text
Deposit Model Name = Cyprus massive sulfide (Cox and Singer, 1986; model 24a)

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.