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Reynolds-Alaska Development Co.

Prospect in Alaska, United States with commodity Copper
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Geologic information

Identification information

Deposit ID 10000433
MRDS ID A010600
Record type Site
Current site name Reynolds-Alaska Development Co.

Geographic coordinates

Geographic coordinates: -149.2706, 59.98841 (WGS84)
Relative position The occurrence is located on the steep slopes of an east-west trending stream which drains into Humpy Cove; it is in the SW1/4 of section 22, T. 2 S., R. 1 E., of the Seward Meridian. Humpy Cove is about 11 miles southeast of Seward, Alaska. This is Cobb's (1972, MF-440) location 1 and Tysdal's (1978) location 105. This location is accurate to within a quarter of a mile.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore

Alteration

  • (Local) None reported.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Rock unit name Orca Group
    Rock description Orca Group

Nearby scientific data

(1) -149.2706, 59.98841
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Comments on the geologic information

  • Geologic Description = The prospect consists of a shear zone in a sheeted basalt dike unit of the Upper Cretaceous Valdez Group. The shear zone was reported to contain chalcopyrite (Cobb and Tysdal , 1980).
  • Age = Cretaceous or younger; associated with shearing of Cretaceous basalt dike.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Seward

Comments on the reserve resource information

  • Reserves = None reported.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010600
USGS Alaska Resource Data File ARDF BS012

Bibliographic references

  • Deposit

    Martin G.C., Johnson, B.L., and Grant, U.S., 1915, Geology and mineral resources of Kenai Peninsula, Alaska: U.S. Geological Survey Bulletin 587, 243 p.

  • Deposit

    Cobb, E.H., 1972, Metalic mineral resources map of the Blying Sound quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Stuudies Map MF-440, 1 sheet, scale 1:150,000.

  • Deposit

    Cobb, E.H. and Tysdal, R.G., 1980, Summaries of data on and list of references to metallic and selected nonmetallic mineral deposits in the Blying Sound and Seward quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-621, 276 p.

  • Deposit

    Cobb, E.H., 1972, Metalic mineral resources map of the Blying Sound quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-440, 1 sheet, scale 1:150,000.

  • Deposit

    Grant, U.S., and Higgins, D.F., Jr., 1909, Notes on geology and mineral prospects in the vicinity of Seward, Kenai Peninsula: U.S. Geological Survey Bulletin 379-C, p. 98-107.

  • Deposit

    Tysdal, R.G., 1978, Mines, prospects, and occurrences map of the Seward and Blying Sound quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-880-A, 2 sheets, 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.

  • Deposit

    Grant, U.S., and Higgins, D.F., Jr., 1910, Reconnaissance of the geology and mineral resources of Prince William Sound, Alaska: U.S. Geological Survey Bulletin 443, 89 p.

Comments on the references

  • Primary Reference = Cobb and Tysdal, 1980

General comments

Subject category Comment text
Deposit Model Name = Chalcopyryite in shear zone.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-JAN-0099 Jeff A. Huber U.S. Geological Survey