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Unnamed (near Kelsall River)

Prospect in Alaska, United States with commodities Copper, Zinc
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Geologic information

Identification information

Deposit ID 10002196
MRDS ID A013096
Record type Site
Current site name Unnamed (near Kelsall River)

Geographic coordinates

Geographic coordinates: -136.14214, 59.55974 (WGS84)
Relative position According to Eakin (1919), a quartz-sulfide vein is located on a ridge between the Kelsall River (formerly Bear Creek) and Nataga Creek. The approximate location is at an elevation of approximately 1,300 feet in the east-central part of section 1, T. 26 S., R. 54 E. of the Copper River Meridian. It is shown as location 14 by Cobb (1972 [MF-424]) and as location 87 by Berg (1984).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Zinc Primary

Materials information

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

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Nearby scientific data

(1) -136.14214, 59.55974
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Comments on the geologic information

  • Geologic Description = Eakin (1919) describes the prospect as a vein a few inches wide that contains pyrite, pyrrhotite, chalcopyrite, and sphalerite in quartz gangue. The main portion of the vein is chalcopyrite and pyrrhotite; sphalerite occurs along the vein margins. No additional detail is provided in subsequent references to this prospect (Cobb, 1972 [MF 424]; Cobb, 1978 [OF 78-316]; and Berg, 1984).

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Juneau (Skagway subdistrict)

Comments on the workings information

  • Workings / Exploration = No workings are reported and very little information is available. The cursory description by Eakin (1919) appears to have been replicated in subsequent references. The claim(s) is apparently long inactive.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013096
USGS Alaska Resource Data File ARDF SK076

Bibliographic references

  • Deposit

    Eakin, H.M., 1919, The Porcupine gold placer district, Alaska: U.S. Geological Survey Bulletin 699, 29 p.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Skagway quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-424, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Mt. Fairweather and Skagway quadrangles, Alaska: U.S. Geological Survey Open-File Report 78-316, 123 p.

  • Deposit

    Berg, H.C., 1984, Regional geologic summary, metallogenesis, and mineral resources of southeastern Alaska: U.S. Geological Survey Open-file Report 84-572, 298 p., 1 plate, scale approx. 1:600,000.

Comments on the references

  • Primary Reference = Eakin, 1919

General comments

Subject category Comment text
Deposit Model Name = Very little information, but apparently a polymetallic quartz-sulfide vein (Cox and Singer, 1986; model 22c).

Reporter information

Type Date Name Affiliation Comment
Reporter 04-FEB-2001 T.C. Crafford T. Crafford & Associates