Moonlight Creek

Past Producer in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10308277
Record type Site
Current site name Moonlight Creek

Geographic coordinates

Geographic coordinates: -164.45529, 64.77831 (WGS84)
Relative position Moonlight Creek is a small north tributary of the Casadepaga River. Its mouth is at an elevation of 425 feet about 3.5 miles upstream from the old town of Casadepaga. This is locality 80 of Cobb (1972, MF 445; 1978, OF 78-181).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
BC deposit profile C01. C02
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -164.45529, 64.77831

Comments on the geologic information

  • Geologic Description = Mertie (1918) reports that placer mining took place along this creek in 1916. Moonlight Creek flows close to the contact of pelitic schist of possible Cambrian or Precambrian age to the east with a lower Paleozoic metasedimentary assemblage, that includes marble in this drainage, to the west (Till and others, 1986).
  • Age = Quaternary; the numerous incised terraces along the Casadepaga River and its major tributaries indicate that more than one cycle of erosion and deposition has developed placer deposits in the area. The low elevations between 170 and 270 feet along the first 11 miles of the river, suggest that Quaternary sea level fluctuations could have influenced placer development.

Economic information

Economic information about the deposit and operations

Development status Past Producer

Comments on exploration

  • Status = Probably inactive

Mining district

District name Council

Comments on the workings information

  • Workings / Exploration = Some small-scale mining is reported to have taken place in 1916 along this creek.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF SO099

Bibliographic references

  • Deposit

    Cobb, E.H., 1972, Metallic resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 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

    Mertie, J.B., Jr., 1918, Lode mining and prospecting on Seward Peninsula: U.S. Geological Survey Bulletin 662-H, p. 425-449.

Comments on the references

  • Primary Reference = Mertie, 1918

General comments

Subject category Comment text
Deposit Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a).

Reporter information

Type Date Name Affiliation Comment
Reporter 19-AUG-99 Travis L. Hudson Applied Geology