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  3. Mineral Resource Data System (MRDS)

Unnamed (south tributary to East Fork, Iron Creek)

Prospect in Alaska, United States with commodities Copper, Tin
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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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10001434
MRDS ID A012182
Record type Site
Current site name Unnamed (south tributary to East Fork, Iron Creek)
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -148.82272, 62.32958 (WGS84)
Relative position 1 mile south of the East Fork of Iron Creek, 2.5 miles south-southwest of VABM Sedan. Locality 65 of Csejtey and Miller (1978) and locality 65 of Singer and others (1978). Accurate within 2,000 feet.

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

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

Talkeetna Mountains C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Talkeetna 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
Tin Critical Secondary

Materials information

Materials Type of material
Malachite Ore
Pyrite Ore
Quartz Gangue

Alteration

  • (Local) Oxidation of Cu-minerals.

Nearby scientific data

(1) -148.82272, 62.32958
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Float sample of vein quartz contained pyrite and malachite staining. Bedrock is Tertiary volcanic rocks, felsic and mafic subaerial volcanic rocks and related shallow intrusions. Nearby, at a lower elevation, is a Jurassic plutonic and metamorphic unit consisting of mainly quartz diorite, granodiorite, amphibolite, and greenschist. Analysis of the float sample yielded 1,500 ppm Cu and less than 10 ppm Sn (Miller and others, 1978).
  • Age = Probably Tertiary or younger, quartz vein cuts Tertiary volcanic rocks .

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Yentna

Comments on the workings information

  • Workings / Exploration = Extent of exploration is apparently only the collection of a surface grab sample. Analysis of the float sample yielded 1,500 ppm Cu and less than 10 ppm Sn (Miller and others, 1978).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Miller and others, 1978

Reporter information

Type Date Name Affiliation Comment
Reporter 05-AUG-98 Bickerstaff, Damon 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.