Unnamed (north of Avaraart Lake)

The Unnamed (north of Avaraart Lake) 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: Unnamed (north of Avaraart Lake)

Commodity

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

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

Alteration Type: L
Alteration Text: Locally prominent copper-staining.

Rocks

Role: Host
Age Type: Host Rock
Age Young: Mississippian
Age Old: Devonian

Analytical Data

Not available

Materials

Not available

Comments

Comment (Workings): Workings / Exploration = The deposit has been explored by a number of prospect pits and several diamond drill holes.

Comment (Exploration): Status = Probably inactive

Comment (Geology): Age = Syngenetic massive sulfide deposit in Devonian or Mississippian host rocks.

Comment (Reference): Primary Reference = Grybeck and Nelson, 1981

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

Comment (Geology): Geologic Description = This prospect explores a silver-basemetal 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 deposit is Devonian or Mississippian in age, based on fossil evidence and U-Pb radiometric dating (Hitzman and others, 1986). Numerous copper-stained zones in the schists have been explored by prospect pits and several diamond drill holes. The deposit is similar to, and probably an extension of, the deposits at SP032.

References

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): 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.

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