Lone Wolf (southwest of Nadzaheen Cove)

The Lone Wolf (southwest of Nadzaheen Cove) is a gold 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: Lone Wolf (southwest of Nadzaheen Cove)

Commodity

Primary: Gold
Secondary: Silver
Secondary: Lead

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: Polymetallic veins

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Sericitic, suggested by muscovite in veins.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Galena
Ore: Gold
Ore: Pyrite
Gangue: Calcite
Gangue: Muscovite
Gangue: Quartz

Comments

Comment (Geology): Age = Probably Late Cretaceous or younger.

Comment (Reference): Primary Reference = Karl, 1992

Comment (Deposit): Model Name = Polymetallic veins (Cox and Singer, 1986; model 22c)

Comment (Geology): Geologic Description = The country rocks in the area of this site are Upper Jurassic or Cretaceous flyschlike metasedimentary rocks that are gradationally interbedded with recrystallized andesitic or basaltic volcanic flows and tuff (Berg, 1972). The rocks were regionally metamorphosed to greenschist-grade phyllite and semischist in Late Cretaceous time.? the Lone Wolf prospect consists of several trenches along a fault zone that contains abundant quartz veins (Karl, 1992, loc. 10). The hostrock is gray, thinly-laminated quartz phyllite; both the phyllite and the quartz veins are folded and faulted. A six-foot-thick vein, which has been traced on the surface for about 300 feet, cements greenstone and phyllite breccia, and contains muscovite, calcite, and pyrite. Other veins in the area have cumulative widths of up to about 60 feet. A sample of a pyritic quartz vein contained 0.88 ppm Au; and a sample of pyritic green phyllite contained 0.56 ppm Au (Karl, 1992). Samples of pyrite- and galena-bearing quartz veins collected by the USGS in the 1930s contained 0.71 oz. Au/ton and 0.91 oz. Ag/ton; and 7 chip samples collected in 1975 by private interests contained as much as 0.23 oz. Au/ton (Berg, 1972; Karl, 1992).

Comment (Workings): Workings / Exploration = The Wolf prospect has been explored by several trenches. A sample of a pyritic quartz vein contained 0.88 ppm Au, and a sample of pyritic green phyllite contained 0.56 ppm Au (Karl, 1992). Samples of pyrite- and galena-bearing quartz veins collected by the USGS in the 1930s contained 0.71 oz. Au/ton and 0.91 oz. Ag/ton; and 7 chip samples collected in 1975 by private interests contained as much as 0.23 oz. Au/ton (Berg, 1972; Karl, 1992).

References

Reference (Deposit): Berg, H.C., 1972, Geologic map of Annette Island, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-684, 8 p., 1 sheet, scale 1:63,360,

Reference (Deposit): Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.

Reference (Deposit): Karl, S.M., 1992, Map and table of mineral deposits on Annette Island, Alaska: U.S. Geological Survey Open-File Report 92-690, 57 p., 1 map, scale 1:63,360.

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