Babybasket

The Babybasket is a zinc 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

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Site Name

Primary: Babybasket

Commodity

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

Location

State: Alaska
District: McGrath

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

Model Name: Polymetallic replacement

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Sphalerite
Ore: Pyrite
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Calcite

Comments

Comment (Exploration): Status = Inactive

Comment (Deposit): Model Name = Polymetallic Replacement Deposit (?)(Cox and Singer, 1986; model no. 19a)

Comment (Deposit): Other Comments = Similar deposits are described in the McGrath and Lime Hills quadrangles (Bundtzen and others, 1994; 1997).

Comment (Workings): Workings / Exploration = The Babybasket occurrence was found as the result of sampling by the U.S. Geological Survey (King and others, 1980; 1983).

Comment (Geology): Geologic Description = The Babybasket prospect consists of several zones of disseminated chalcopyrite, pyrite and rare sphalerite in calc-silicate skarn and carbonate replacement zones. The mineralized zones are adjacent to gabbro-diorite dikes and sills that intrude Cambro-Ordovician silty limestone and shale of the Lyman Hills Formation, the lower-most part of the Dillinger subterrane as defined by Bundtzen and others (1997). No size or orientations of mineralized zones are known. The occurrences were detected as a result of anomalous values found in stream sediment and pan concentrate samples collected by the U.S. Geological Survey (King and others, 1980; 1983). Age is probably either Paleozoic or Triassic, based on isotopic age data collected from equivalent gabbro-diorite sills in the McGrath quadrangle (Bundtzen and others, 1997).

Comment (Reference): Primary Reference = King and others, 1980

Comment (Geology): Age = the Babybasket occurrence is probably either Paleozoic or Triassic, based on isotopic age data collected from equivalent gabbro-diorite sills in the McGrath quadrangle (Bundtzen and others, 1997).

References

Reference (Deposit): Bundtzen, T.K., Laird, G.M., Harris, E.E., and Clautice, K.H., 1994, Geologic map of the Lime Hills C-5 and C-6 quadrangles, Alaska: Alaska Division of Geological and Geophysical Surveys Public Data File Report 94-40, 30 p., 1 sheet, scale 1:63,360.

Reference (Deposit): King, H.D., Tripp, R.B., O'Leary, R.M., and Cooley, E.F., 1983, Distribution and abundance of copper, lead, and zinc in nonmagnetic and moderately magnetic heavy-mineral- concentrate, minus-80-mesh stream-sediment, and ash of aquatic-bryophyte samples, Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811-I, 6 sheets, scale 1:250,000.

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