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Unnamed (north of Simeon Bight)

Prospect in Alaska, United States with commodities Gold, Arsenic, Copper, Mercury, Lead, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308165
Record type Site
Current site name Unnamed (north of Simeon Bight)

Geographic coordinates

Geographic coordinates: -160.41142, 55.29324 (WGS84)
Relative position This prospect is at an elevation of 300 feet on western Popof Island approximately 0.3 mile north of the west part of Simeon Bight. The map site is in the northeast corner of sec. 35, T. 56 S., R. 73 W., of the Seward Meridian. The location is accurate.

Site location context

Political divisions (FIPS codes)

Aleutians East(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Port Moller B-2(quadrangle 1:63,360 scale)

Shumagin Islands N(quadrangle 1:100,000 scale)

Port Moller(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Cold Bay(hydrologic unit)

Aleutian Islands(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Shumagin Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Arsenic Critical Secondary
Copper Secondary
Mercury Secondary
Lead Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore

Alteration

  • (Local) The volcanic rocks exhibit silicic, argillic and solfataric alteration.

Nearby scientific data

(1) -160.41142, 55.29324
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The rocks at this site are basaltic tuffs and flows interbedded with ash and crystal-lithic tuffs of the Eocene to Oligocene Popof volcanic rocks (Wilson and others, 1995). Two distinct areas of alteration are present. The westernmost is a north-trending 5,000- by 1,000-foot zone of silicification. Approximately 1,000 feet to the east is a 2,000- by 2,000-foot zone of mixed silicified and argillized rock (Ellis and Apel, 1989). Pyrite is the only sulfide reported. Grid sampling of soil and rocks revealed only scattered, low-order gold anomalies; however, widespread arsenic and mercury anomalies were outlined. The prospect was explored by 5 drill holes. Three were drilled on a gold-arsenic anomaly just southwest of a 4,000-gamma magnetic low. This drilling penetrated rock carrying scattered gold values of 20 to 200 ppb and localized base metal values of 100 to 2,500 ppm copper, 100 to 800 ppm lead, and 200 to 700 ppm zinc (Ellis and Apel, 1989). All five drill holes cut strong to pervasive silicification, argillization, pyritization, and localized solfataric alteration marked by native sulfur.
  • Age = Eocene or younger.

Economic information about the deposit and operations

Development status Prospect

Mining district

District name Alaska Peninsula

Comments on the workings information

  • Workings / Exploration = In 1989 Battle Mountain Exploration Company mapped this prospect, collected 250 rock and 500 soil samples, conducted VLF-EM surveys, power-augered 97 holes, and drilled five core holes for a total of 2,795 feet (Ellis and Apel, 1989; 1990). Fifty-five rock samples were taken in 1990. Only scattered low-level gold values were found.

Reference information

Bibliographic references

  • Deposit

    Ellis, W.T., and Apel, R.A., 1989, Unga/Alaska Peninsula 1989 final report: Battle Mountain Exploration Company report, 41 p., 28 map sheets at various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)

  • Deposit

    Ellis, W.T., and Apel, R.A., 1990, Unga/Alaska Peninsula 1990 final report, Battle Mountain Exploration Company report, 49 p., 29 map sheets at various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)

  • 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 = Ellis and Apel, 1989

General comments

Subject category Comment text
Deposit Other Comments = This site is located on land patented by, or interim-conveyed to, the Aleut Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JAN-01 S.H. Pilcher U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.