Unnamed (west of upper Cross Creek)

Occurrence in Alaska, United States with commodities Copper, Lead, Zinc

Geologic information

Identification information

Deposit ID 10000766
MRDS ID A011408
Record type Site
Current site name Unnamed (west of upper Cross Creek)
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -142.57863, 62.07136 (WGS84)
Relative position Best location: Richter, 1973, USGS I-789, loc. 17. Accurate within 100 ft radius
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Lead Primary
Zinc Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)
    Rock unit name Tetelna Volcanics;Tetelna Volcanics
    Rock description Tetelna Volcanics;Tetelna Volcanics
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -142.57863, 62.07136

Comments on the geologic information

  • Geologic Description = Quartz vein containing minor pyrite, chalcopyrite, galena and sphalerite in hornfelsed volcanic country rock containing disseminated galena and sphalerite. Country rock is upper Paleozoic Tetelna Volcanics near Tertiary hornblende porphyry.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Sample of volcanic hornfels with disseminated sulfides ran: 0.9 ppm Au, 300 ppm Cu, 5 ppm Mo, 3000 ppm Pb, >10,000 ppm Zn (USGS OF 398, sample 834); Type of workings: surface

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011408
USGS Alaska Resource Data File ARDF NB056

Bibliographic references

  • Deposit

    Richter, D.H., 1973, Reconnaissance geological map of the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-789, scale 1:63,360.

  • Deposit

    Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.

  • Deposit

    Richter, D.H., and Matson, N.A., 1970, Geochemical data from the Nabesna A-4 quadrangle, Alaska: U.S. Geological Survey Open-File Report 70-276, 14 p., 1 sheet, scale 1:63,360.

Comments on the references

  • Primary Reference = Richter, 1973, USGS I-789

General comments

Subject category Comment text
Deposit Model Name = Lode: vein, disseminated
Deposit Other Comments = See also: Cross Creek prospect (NB055)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-FEB-1997 Leonard, K.R. U.S. Geological Survey
Reporter 07-FEB-1997 Elliott, R.L. U.S. Geological Survey
Reporter 07-FEB-1997 Richter, D.H. U.S. Geological Survey