Unnamed (south of Zachary Bay)

The Unnamed (south of Zachary Bay) is a zinc, lead, and silver 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 (south of Zachary Bay)

Commodity

Primary: Zinc
Primary: Lead
Primary: Silver
Secondary: Copper

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: Occurrence
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 mineralization is accompanied by strong silicification.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Sphalerite
Ore: Galena
Ore: Chalcopyrite

Comments

Comment (Reference): Primary Reference = Trujillo and others 1981

Comment (Workings): Workings / Exploration = One mineralized rock sample collected by Resource Associates of Alaska assayed 1.09 ounces of silver per ton, 2.07 percent zinc, and 0.58 percent lead.

Comment (Geology): Age = Eocene or younger.

Comment (Geology): Geologic Description = At this site, Resource Associates of Alaska in 1981 located a 50-foot-wide zone of brecciated, silicified, pyritic andesite that may be a breccia pipe (Trujillo and others, 1981). The breccia fragments are in-filled by chalcopyrite, sphalerite, and galena over a 35-foot width of the zone. One sample of mineralized rock assayed 1.09 ounces of silver per ton, 2.07 percent zinc, and 0.58 percent lead. The country rocks are mapped as late Eocene to early Oligocene Popof volcanic rocks (Wilson and others, 1995).

Comment (Exploration): Status = Inactive

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

References

Reference (Deposit): Peterson, R.J., Handverger, P., Rosenkrans, D., Bartels, E, and Woolston, D., 1983, Shumagin Islands precious metal exploration program southwest Alaska: UNC Teton Exploration Drilling Company report, 61 p. (Report held by the Aleut Corporation, Anchorage, Alaska.)

Reference (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.

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): Trujillo, R.S., Anderson, G., MacLeod, T., Hendrick, K., Farnham, S., Peterson, J., 1981. Exploration and evaluation of the Unga-Popof-Korovan Islands portion of lands leased from Aleut Native Corporation: Resource Associates of Alaska report, 70 p., 38 map sheets, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)

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