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Unnamed (south of lower Baultoff Creek)

Occurrence in Alaska, United States with commodities Copper, Silver
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Geologic information

Identification information

Deposit ID 10000782
MRDS ID A011426
Record type Site
Current site name Unnamed (south of lower Baultoff Creek)
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -141.06942, 62.07805 (WGS84)
Relative position Best location: Richter and others, 1973, USGS I-807, loc. 9. Accurate within 100 ft radius
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Silver Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -141.06942, 62.07805
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Comments on the geologic information

  • Geologic Description = Quartz-calcite veins containing minor chalcopyrite in small quartz monzonite stock of Cretaceous age that intrudes Permian volcanic country rock.

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 = Grab sample of quartz-calcite vein assayed: 15000 ppm Cu, 700 ppm Cr, 150 ppm Ni, 200 ppm Zn, 300 ppm V, 15 ppm B, 7 ppm Ag (USGS OF 471, sample 143). Type of workings: surface

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011426
USGS Alaska Resource Data File ARDF NB103

Bibliographic references

  • Deposit

    Richter, D.H., Matson, N.A., Jr., and Smoll, H.R., 1973, Reconnaissance geologic map of the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-807, scale 1:63,360.

  • Deposit

    Matson, N.A., and Richter, D.H., 1971, Geochemical data from the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Open-File Report 71-0202, 10 p.

Comments on the references

  • Primary Reference = Richter and others, 1973, USGS, I-807

General comments

Subject category Comment text
Deposit Model Name = Lode: vein

Reporter information

Type Date Name Affiliation Comment
Reporter 10-FEB-1997 Leonard, K.R. U.S. Geological Survey
Reporter 10-FEB-1997 Elliott, R.L. U.S. Geological Survey
Reporter 10-FEB-1997 Richter, D.H. U.S. Geological Survey