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Timber Creek

Prospect in Alaska, United States with commodities Silver, Gold, Copper
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Geologic information

Identification information

Deposit ID 10001905
MRDS ID A012733
Record type Site
Current site name Timber Creek
Related records 10281681

Geographic coordinates

Geographic coordinates: -162.28332, 65.27937 (WGS84)
Relative position This occurrence is very approximately located (probably within 2 miles) in the headwaters of Timber Creek, a south tributary to Koyuk River. The confluence of Timber Creek and its west tributary Nutmoyuk Creek (as shown on the Bendeleben B-1 quadrangle) is about 3 miles downstream of this location (the 1:250,000 Bendeleben quadrangle shows Timber Creek to be a tributary of Nutmoyuk Creek). This is locality 18 of Cobb (1972; MF 417; 1975; OFR 75-429).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Primary

Materials information

Materials Type of material
Malachite Ore

Alteration

  • (Local) Oxidation is well-developed.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -162.28332, 65.27937
ListMap

Comments on the geologic information

  • Geologic Description = Copper-stained greenstone near a contact with limestone was apparently discovered and initially explored in 1906-1907 (Smith and Eakin, 1911). Shallow prospect pits were dug and some high-grade samples were taken that supposedly contained 17 to 70 ounces/ton Ag and about 0.05 ounces/ton Au. The location of this occurrence is uncertain but mafic metavolcanic rocks and Devonian marble are mapped in the headwaters of Timber Creek (Till and others, 1986).
  • Age = If epigenetic, probably Cretaceous or younger.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Koyuk

Comments on the workings information

  • Workings / Exploration = Shallow prospect pits were apparently dug when the occurrence was first discovered.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012733
USGS Alaska Resource Data File ARDF BN084

Bibliographic references

  • Deposit

    Smith, P.S. and Eakin, H.M., 1911, Mineral resources of Alaska 1910: U.S. Geological Survey Bulletin 480, 333 p..

  • Deposit

    Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bendeleben quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-429, 123 p.

  • Deposit

    Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Bendeleben quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-417, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Smith and Eakin, 1911

General comments

Subject category Comment text
Deposit Model Name = Copper-bearing greenstone

Reporter information

Type Date Name Affiliation Comment
Reporter 15-MAR-1999 Travis L. Hudson Applied Geology