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

Unnamed (near upper Crystal Creek)

Occurrence in Alaska, United States with commodities Lead, Zinc, Arsenic, Iron
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials 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 10003493
MRDS ID A106251
Record type Site
Current site name Unnamed (near upper Crystal Creek)

Geographic coordinates

Geographic coordinates: -152.99275, 61.52948 (WGS84)
Relative position Reed and Elliott (1970, S-30, p.21) collected a float sample with visible base metal sulfides from a tributary to Upper Crystal Creek, near the western boundary of the Tyonek Quadrangle at about the center of the north side of sec. 25, T. 17 N., R. 21 W. (Cobb, 1972, MF 385, locality 3 and U.S. Bureau of Mines, 1998, MAS # 0020840003). Location is approximate to within a one mile radius.

Site location context

Political divisions (FIPS codes)

Bethel(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tyonek C-8(quadrangle 1:63,360 scale)

Tyonek NW(quadrangle 1:100,000 scale)

Tyonek(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Yentna 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
Lead Primary
Zinc Critical Primary
Arsenic Critical Secondary
Iron Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore

Nearby scientific data

(1) -152.99275, 61.52948
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Boulder of altered, sheared, fine-grained igneous rock contains 2% disseminated pyrite, 1% to 2% galena, and traces of sphalerite and arsenopyrite (Reed and Elliott, 1970, S-30, p.21).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Mining district

District name Yentna

Reference information

Bibliographic references

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1:250,000 scale.

  • Deposit

    Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska: U.S. Geological Survey Open-File Report 80-86, 36 p.

  • Deposit

    U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna Quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.

  • Deposit

    Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range: U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.

Comments on the references

  • Primary Reference = Reed and Elliott, 1970

General comments

Subject category Comment text
Deposit Model Name = Unknown.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1998 Madelyn Millholland Millholland & Associates
Reporter 01-JUN-1998 James Riehle 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.