Unnamed (south of mouth of Fishhook Bay)

Occurrence in Alaska, United States with commodities Silver, Copper, Lead, Zinc, Arsenic, Antimony

Geologic information

Identification information

Deposit ID 10307311
Record type Site
Current site name Unnamed (south of mouth of Fishhook Bay)

Geographic coordinates

Geographic coordinates: -158.64644, 56.00328 (WGS84)
Relative position This occurrence is located in T. 48 S., R. 60 W., of the Seward Meridian, approximately 1.3 miles south of the mouth of Fishook Bay. The location is accurate to within 1/2 mile.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Copper Primary
Lead Primary
Zinc Primary
Arsenic Secondary
Antimony Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Chalcopyrite Ore
Galena 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) -158.64644, 56.00328

Comments on the geologic information

  • Geologic Description = The rocks at this site consist of Cretaceous Hoodoo Formation cut by andesite dikes. The U.S. Geological Survey sampled a pyritic quartz vein which cuts hornfelsed siltstone of the Hoodoo Formation at this site (Angeloni and others, 1985). The width of the vein is unknown. The sample of vein material ran 200 ppm antimony, >10,000 ppm arsenic, 1,500 ppm copper, 1,500 ppm lead, 150 ppm silver; and >10,000 ppm zinc.
  • Age = Tertiary

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 (83AWs 57) of vein material collected by the U.S. Geological Survey contained 200 ppm antimony, >10,000 ppm arsenic, 1,500 ppm copper, 1,500 ppm lead, 150 ppm silver, and >10,000 ppm zinc.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF CG013

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.

Comments on the references

  • Primary Reference = Angeloni and others, 1985

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c)
Deposit Other Comments = This site is located within the Alaska Peninsula National Wildlife Refuge.

Reporter information

Type Date Name Affiliation Comment
Reporter 08-FEB-00 S.H. Pilcher U.S. Geological Survey