Unnamed (headwaters of Rick's Creek)

Occurrence in Alaska, United States with commodities Tungsten, Copper

Geologic information

Identification information

Deposit ID 10001724
MRDS ID A012508
Record type Site
Current site name Unnamed (headwaters of Rick's Creek)

Geographic coordinates

Geographic coordinates: -144.96286, 64.82972 (WGS84)
Relative position An occurrence noted by Albanese (1984) is located on a ridge in the headwaters of Rick's Creek (BD036). The approximate location of the occurrence is in NW1/4 section 16, T. 1 S., R. 14 E., of the Fairbanks Meridian. It was not identified as a separate location by Cobb (1972) or by Cobb and Eberlein (1980).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Tungsten Primary
Copper Secondary

Comments on the commodity information

  • Gangue = Calc-silicates

Materials information

Materials Type of material
Arsenopyrite Ore
Chalcopyrite Ore
Pyrite Ore
Quartz Gangue

Nearby scientific data

(1) -144.96286, 64.82972

Comments on the geologic information

  • Geologic Description = As reported by Albanese (1984), the occurrence is a pod of gossan containing arsenopyrite, chalcopyrite, and chalcopyrite in calc-silicate rock. Weber and others (1978) describe the country rock as quartzite, slate, calc-phyllite and marble. The occurrence is located near contact of a Tertiary to Cretaceous granodiorite to quartz monzonite intrusion. An assay of a rock sample contained 475 ppm Cu, 3 ppm Pb, 3 ppm Zn, 1.5 ppm Ag, 2 ppm Mo, 5 ppm Sn, greater than 1000 ppm W, 465 ppm As, and 1,330 ppm Mn (Albanese, 1984).

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Mining district

District name Fairbanks

Comments on the workings information

  • Workings / Exploration = Occurrence noted during geologic mapping.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012508
USGS Alaska Resource Data File ARDF BD041

Bibliographic references

  • Deposit

    Weber, F.R., Foster, H.L., Keith, T.E.C., Dusel-Bacon, C., 1978, Preliminary geologic map of the Big Delta quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-529A, 1 sheet, scale 1:250,000.

  • Deposit

    Albanese, M.D., 1984, Geochemical reconnaissance of the upper Chena river area, central Alaska: analytical data on stream sediment, pan concentrate, and rock samples: Alaska Division of Geological and Geophysical Surveys Report of Investigation 84-4, 30 p.

Comments on the references

  • Primary Reference = Albanese,1984

Reporter information

Type Date Name Affiliation Comment
Reporter 26-APR-1999 Cameron S. Rombach Alaska Division of Geological and Geophysical Surveys