Unnamed (north of Simeon Bight)

The Unnamed (north of Simeon Bight) is a gold mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Unnamed (north of Simeon Bight)

Commodity

Primary: Gold
Secondary: Arsenic
Secondary: Lead
Secondary: Mercury
Secondary: Copper
Secondary: Zinc

Location

State: Alaska
District: Alaska Peninsula

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: The volcanic rocks exhibit silicic, argillic and solfataric alteration.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Pyrite
Ore: Gold

Comments

Comment (Geology): 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.

Comment (Deposit): Other Comments = This site is located on land patented by, or interim-conveyed to, the Aleut Corporation.

Comment (Workings): 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.

Comment (Geology): Age = Eocene or younger.

Comment (Reference): Primary Reference = Ellis and Apel, 1989

References

Reference (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.

Reference (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.)

Reference (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.)

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