Otter Creek

Prospect in Alaska, United States with commodities Silver, Gold

Geologic information

Identification information

Deposit ID 10001918
MRDS ID A012751
Record type Site
Current site name Otter Creek
Related records 10233406

Geographic coordinates

Geographic coordinates: -162.4033, 65.08936 (WGS84)
Relative position This prospect is in the headwaters of Otter Creek, a west tributary to Tubutulik River on the south side of Death Valley. The mouth of Otter Creek is 4 miles south of Camp Haven. It is about 4.6 miles upstream from the mouthof the creek or 3,000 feet upstream of the dozer cuts (BN087) on the creek. A 20 foot-deep shaft near two decaying log cabins marks the locality (Herreid, 1965). This is locality 17 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

Alteration

  • (Local) Quartz veining in schist.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -162.4033, 65.08936

Comments on the geologic information

  • Geologic Description = A caved shaft, estimated to be 20 feet deep, is located next to two decaying log cabins at this prospect. The shaft is in quartz-mica schist which contains less than 1 % sulfides along tiny quartz veins (Herreid, 1965). Grab samples of quartz-rich and quartz-poor schist from the shaft dump contained 0.03 ounces/ton Au (trace Ag) and 0.01 ounces/ton Au (0.27 ounces/ton Ag) respectively. Bedrock in the area is Lower Paleozoic metasedimentary rocks (Herreid, 1965; Till and others, 1986).
  • Age = Cretaceous ; Epigenetic mineralization in metamorphic rocks of Seward Peninsula is primarily of Cretaceous age.

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 = An old caved shaft, estimated to originally be 20 feet deep, is present here.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012751
USGS Alaska Resource Data File ARDF BN088

Bibliographic references

  • 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.

  • Deposit

    Herried, G.H., 1965, Geology of the Omilak-Otter Creek area, Bendeleben quadrangle, Alaska: Alaska Division of Mines and Minerals Geological Report 11, 12 p., 1 sheet, scale 1:63,360.

Comments on the references

  • Primary Reference = Herreid, 1965

General comments

Subject category Comment text
Deposit Model Name = Low sulfide Au-quartz veins ? (Cox and Singer, 1986; model 36a ?)

Reporter information

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