Unnamed (upper Ophir Creek)

Occurrence in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10307293
Record type Site
Current site name Unnamed (upper Ophir Creek)

Geographic coordinates

Geographic coordinates: -163.69331, 65.04933 (WGS84)
Relative position This occurrence is in bedrock exposures along upper Ophir Creek (BN099) about 2.8 miles upstream of its confluence with Crooked Creek. It is locality 76 of Gamble (1988).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

(1) -163.69331, 65.04933

Comments on the geologic information

  • Geologic Description = Gamble (1988) reports that a quartz boudin in chlorite schist from this locality contained 0.1 ppm Au. Bedrock exposures are limited in this area; this occurrence may be close to a regional contact between lower Paleozoic mafic metavolcanic and metasedimentary assemblages (Till and others, 1986).
  • Age = Unknown; not clear if this is a metamorphosed anomaly or if it is superimposed on the metamorphic rocks.

Economic information

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Council

Comments on the workings information

  • Workings / Exploration = No workings or exploration activities are known at this locality.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF BN126

Bibliographic references

  • 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

    Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Gamble, 1986

General comments

Subject category Comment text
Deposit Model Name = Quartz boudin in chloritic schist

Reporter information

Type Date Name Affiliation Comment
Reporter 15-MAR-99 Travis L. Hudson Applied Geology