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Unnamed (near Igloo Creek)

Occurrence in Alaska, United States with commodity 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. Alteration
  7. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308442
Record type Site
Current site name Unnamed (near Igloo Creek)

Geographic coordinates

Geographic coordinates: -165.62739, 65.4703 (WGS84)
Relative position This occurrence is on the ridge crest between lower Igloo Creek (east tributary to the American River) and another (unnamed) east tributary to the the American River. The mouth of the unnamed east tributary is 4.25 miles north of the mouth of Igloo Creek. This occurrence is at a surface elevation of approximately 1,150 feet, 4.4 to 4.5 miles due east of the American River. The location is mapped by Sainsbury (1972) but it was not included by Cobb and Sainsbury (1972). Cobb (1975) refers to this location as 'Unnamed occurrence'.

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Teller B-2(quadrangle 1:63,360 scale)

Bendeleben SW(quadrangle 1:100,000 scale)

Teller(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imuruk Basin(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Tin Critical Primary

Alteration

  • (Local) Calc-silicate minerals replacing metacarbonate rocks

Mineral occurrence model information

Model code 43
USGS model code 14b
Deposit model name Sn skarn

Nearby scientific data

(1) -165.62739, 65.4703
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Sainsbury (1972) notes the occurrence of tactite rubble and outcrop on this ridge. The mapped bedrock assemblage in this area is chlorite-epidote-amphibole schist with some intercalated metacarbonate rocks and local metamorphosed mafic intrusive bodies (Sainsbury, 1972). Partial results of a spectrographic analysis reported by Sainsbury (1972, p. 3) indicate that tactite here can contain greater than 1,000 ppm tin, 1,000 ppm beryllium, and greater than 1,000 ppm bismuth. No other data are available.
  • Age = May be Late Cretaceous, the age of other tin-bearing mineralized systems of western Seward Peninsula.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Port Clarence

Comments on the workings information

  • Workings / Exploration = No prospecting activities are known to have taken place at this location.

Reference information

Bibliographic references

  • Deposit

    Sainsbury, C.L., 1972, Geologic map of the Teller quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Map I-685, 4 p., 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resource map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.

  • Deposit

    Hudson, T.L., 1983, Interim report on the 1982 Seward Peninsula reconnaissance project, Regional Geology: Anchorage, Alaska, Anaconda Minerals Company internal report (Report held by Cook Inlet Region, Inc., Anchorage, Alaska).

Comments on the references

  • Primary Reference = Sainsbury, 1972

General comments

Subject category Comment text
Deposit Model Name = Tin-bearing skarn (Cox and Singer, 1986; model 14b)
Deposit Other Comments = A 1982 reconnaissance traverse on this ridge did not relocate this occurrence (Hudson, 1983).

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAY-98 Travis L. Hudson Applied Geology

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.