Unnamed (on northern Nagai Island)

Occurrence in Alaska, United States with commodities Lead, Zinc

Geologic information

Identification information

Deposit ID 10308218
Record type Site
Current site name Unnamed (on northern Nagai Island)

Geographic coordinates

Geographic coordinates: -159.90341, 55.25925 (WGS84)
Relative position The map site of this occurrence is at an elevation of 200 feet, on Nagai Island approximately 2.5 miles south-southwest of Cape Wedge. It is referred to as SBRGX-40 in Wilson and others (1988, locality 14). The location is accurate to within 2,500 feet.
(click for info)

Geographic areas

Country State
United States Alaska


Commodity Importance
Lead Primary
Zinc Primary

Nearby scientific data

(1) -159.90341, 55.25925

Comments on the geologic information

  • Geologic Description = This occurrence is in interbedded siltstone and sandstone in the Lower Cretaceous Shumagin Formation near a contact with a dike or outlier of the Shumagin Batholith (Wilson and others, 1995). Anomalous values in lead and zinc have been reported in the sedimentary rock (Wilson and others, 1988).

Economic information

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Alaska Peninsula

Comments on the workings information

  • Workings / Exploration = Rock sample 84ADt177, collected by the U. S. Geological Survey in the mid-1980's, was reported to be anomalous in lead and zinc (Wilson and others, 1988).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF SB014

Bibliographic references

  • Deposit

    Angeloni, L.M., Wilson, F.H., and Sutlet, S., 1985, Map and tables showing preliminary rock geochemical data, Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-470, 179 p., 1 map sheet, scale 1:250,000.

  • Deposit

    Wilson, F.H., White, W.H., and DuBois, G.D., 1988, Brief descriptions of mines, prospects, and mineral occurrences in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 88-666, 128 p., scale 1:250,000.

  • Deposit

    Wilson, F.H., Detterman, R.L., Miller, J. W., and Case, J.E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-2272, 1 map sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Wilson and others, 1988

General comments

Subject category Comment text
Deposit Other Comments = This occurrence is located on land selected by the Aleut corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-NOV-00 S.H. Pilcher U.S. Geological Survey