Unnamed (near Round Point)

The Unnamed (near Round Point) is a zinc, lead, and copper 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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Unnamed (near Round Point)

Commodity

Primary: Zinc
Primary: Lead
Primary: Copper

Location

State: Alaska
District: Ketchikan

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

Model Name: Massive sulfide, kuroko
Model Name: Massive sulfide, Sierran kuroko

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Deposit): Model Name = Kuroko volcanogenic massive-sulfide deposit (Cox and Singer, 1986; model 28a); alternatively a Sierran Kuroko volcanogenic massive sulfide deposit (Bliss, 1992; model 28a1)

Comment (Reference): Primary Reference = Grybeck, Berg, and Karl, 1984

Comment (Reserve-Resource): Reserves = None

Comment (Workings): Workings / Exploration = Block of more than 600 claims staked in the late 1970's and active through at least 1981 (U.S. Bureau of Mines, 1980). The 1995, Alaska Department of Natural Resources Kardex claim data base shows that at least a few claims were still active.

Comment (Production): Production Notes = None

Comment (Geology): Age = Triassic.

Comment (Geology): Geologic Description = See PE063 for description of a prospect within this claim block. . Recent mapping by the USGS (Sue Karl, oral communication, 1998) indicates that much of this block of claims consists of Triassic Hyd Group rocks that host the volcanogenic massive sulfide deposits of the Duncan-Zarembo belt defined by Berg and Grybeck (1980), and Berg (1981).

Comment (Exploration): Status = Active?

References

Reference (Deposit): U.S. Bureau of Mines, 1980, Claim map, Petersburg quadrangle, Alaska: U.S. Bureau of Mines Map 117, 1 sheet, scale 1:250,000.

Reference (Deposit): Grybeck, D.J., Berg, H.C., and Karl, S.M., 1984, Map and description of the mineral deposits in the Petersburg and eastern Port Alexander quadrangles: U.S. Geological Survey Open-File Report 84-837, 86 p., 1 sheet, scale 1:250,000.

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