BTcc

The BTcc is a zinc, lead, copper, 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: BTcc

Commodity

Primary: Zinc
Primary: Lead
Primary: Copper
Primary: Silver
Secondary: Barium-Barite

Location

State: Alaska
District: Shungnak

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

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Sphalerite
Ore: Chalcopyrite
Ore: Tennantite
Ore: Cymrite
Ore: Cymrite

Comments

Comment (Geology): Age = Host rock is Mississippian - Devonian.

Comment (Deposit): Model Name = Kuroko massive sulfide (Cox and Singer, 1986; model 28a)

Comment (Exploration): Status = Active?

Comment (Geology): Age = Syngenetic deposit in Devonian or Mississippian host rocks (Hitzman and others, 1986).

Comment (Reference): Primary Reference = Hitzman, 1978

Comment (Workings): Workings / Exploration = Surface mapping and drilling.

Comment (Geology): Geologic Description = The BTcc group of prospects explore silver-base metal volcanogenic massive sulfide deposits in a sequence of low to medium grade, metamorphosed basaltic and rhyolitic rocks, submarine ash flow tuffs, and pelitic and carbonaceous sedimentary rocks known as the Ambler schist belt. The deposits are Devonian or Mississippian based on fossil evidence and U-Pb radiometric dating (Hitzman, 1978; Hitzman and others, 1986). There are numerous prospect pits and diamond drill sites in the area dating to the late 1970's. Surface mapping has shown that the deposits extend 10 km to the west along the same stratigraphic horizon.

References

Reference (Deposit): Grybeck, D.J., and Nelson, S.W., 1981, Mineral deposit map of the Survey Pass quadrangle, Brooks Range, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1176-F, 1 sheet, scale 1:250,000.

Reference (Deposit): Hitzman, M.W., Profett, J.M., Jr., Schmidt, J.M., and Smith, T.E., 1986, Geology and mineralization of the Ambler district, northwestern Alaska: Economic Geology, v. 81, p. 1592-1618.

Reference (Deposit): Hitzman, M.W., 1978, Geology of the BT claim group, southwestern Brooks Range, Alaska: University of Washington, Seattle, M.Sc. thesis, 80 p.

Reference (Deposit): Hitzman, M.W., 1980, Geology of the BT claim group, southwestern Brooks Range, Alaska, in Silberman, M.L., Field, C.W., Berry, A.L., eds, Proceedings of the symposium on mineral deposits of the Pacific Northwest: U.S. Geological Survey Open-File Report 81-355, p. 17-35.

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