Prospect in Alaska, United States with commodities Silver, Gold, Copper, Lead, Zinc, Asbestos

Geologic information

Identification information

Deposit ID 10094005
MRDS ID A011843
Record type Site
Current site name Gold-Quartz
Related records 10258224

Geographic coordinates

Geographic coordinates: -144.01068, 62.73579 (WGS84)
Relative position The Gold-Quartz prospect (Cobb, 1979 [ OF 79-1247]) is in Ahtell Creek. about one mile below the junction of Silver Creek. It is in NE1/4 section 13, T. 11 N., R. 7 E., Copper River Meridian. The location of the prospect is shown correctly as location 9 in Richter (1966). It is shown incorrectly as number 13 in Richter and Matson (1972), and is approximately located as number 12 of MacKevett and Holloway (1977). The location given here is accurate within 500 feet.
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Geographic areas

Country State
United States Alaska


Commodity Importance
Silver Primary
Gold Primary
Copper Primary
Lead Primary
Zinc Primary
Asbestos Secondary

Comments on the commodity information

  • Gangue = Carbonate

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite 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

Nearby scientific data

(1) -144.01068, 62.73579

Comments on the geologic information

  • Geologic Description = A quartz-carbonate vein occurs in Pennsylvanian volcanic rocks that trends N5-8W and dips 67 West. It occurs between a hanging wall of serpentinized basalt or gabbro with chrysotile-calcite veinlets, and a footwall of tuff(?). Both walls of the vein are brecciated and iron stained. Slickensides and clay gouge with fragments of vein material indicate post-mineralization movement. The vein varies from 3 to 5 feet thick and is composed of locally brecciated, milky quartz with pods of ankerite; sphalerite, and smaller amounts of chalcopyrite, galena, pyrite and precious metals. Samples of vein assayed up to 0.9 ounce of gold per ton and 0.76 ounce of silver per ton, (Richter, 1964, 1966). The volcanic host rocks are part of Pennsylvanian and Permian, Slana Spur Formation. The description is summarized from Richter, 1964, 1966; Cobb, 1979 [OF 79-1247]; and Nokleberg and others, 1994.
  • Age = Emplaced subseqent to or is related to the border phase of the Pennsylvanian to Permian, Ahtell pluton.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina

Comments on the workings information

  • Workings / Exploration = An adit driven on the vein in 1955 and 1956 encountered glacial material 55 feet from the portal.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011843
USGS Alaska Resource Data File ARDF GU013

Bibliographic references

  • Deposit

    Richter, D.H., 1964, Geology and mineral deposits of the Ahtell Creek area, Slana District, south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geologic Report 6, 17 p., 1 sheet, scale 1:31,680.

  • Deposit

    Richter, D.H., 1966, Geology of the Slana district on south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geological Report 2l, 36b p., 3 sheets, scale 1:63,360.

  • Deposit

    Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Gulkana quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1247, 36 p.

  • Deposit

    Nokleberg, W.J., and others, 1994, Metallogeny and major mineral deposits of Alaska and Metallogenic map of significant metalliferous lode deposits and placer districts of Alaska, in Plafker, G. and Berg, H.C., eds., The Geology of Alaska: Boulder, Colorado, Geological Society of America: The Geology of North America, v. G1, p. 855-904 and v. G1, Plate 11, scale 1:2,500,000.

  • Deposit

    Richter, D.H., and Matson, N.A., Jr., 1972, Metallic mineral resources map of the Gulkana quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-419, 1 sheet, scale 1:250,000.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.

Comments on the references

  • Primary Reference = Richter, 1964

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c)

Reporter information

Type Date Name Affiliation Comment
Reporter 04-DEC-00 W.T. Ellis Alaska Earth Sciences
Reporter 04-DEC-00 Hawley, C.C. Hawley Resource Group
Reporter 04-DEC-00 W.J. Nokleberg U.S. Geological Survey