Last Chance No. 2

The Last Chance No. 2 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: Last Chance No. 2
Secondary: Last Chance

Commodity

Primary: Gold

Location

State: Alaska
District: Prince William Sound

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
Model Name: Low-sulfide Au-quartz vein

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Arsenopyrite
Ore: Gold
Gangue: Quartz

Comments

Comment (Reference): Primary Reference = Johnson, 1914

Comment (Exploration): Status = Inactive

Comment (Geology): Geologic Description = Quartz vein cuts Late Cretaceous massive graywacke and minor slate of the Valdez Group. The quartz vein is up to 3 ft thick, strikes N 10 E, and dips 10 W. The vein can be traced for 150 ft and contains large quartz crystals, arsenopyrite, and gold. Assays indicate 0.63 oz/ton Au (Johnson, 1914).

Comment (Deposit): Model Name = Chugach-type low-sulfide Au-quartz vein ? (Bliss, 1992; model 36a.1 ?) or Polymetallic veins ? (Cox and Singer, 1986; model 22c ?)

Comment (Workings): Workings / Exploration = Assays indicate 0.63 oz/ton Au (Johnson, 1914). Ground quartz vein yielded free gold.

Comment (Geology): Age = Late Cretaceous or younger; vein cuts massive graywackes and minor slates of the Late Cretaceous Valdez Group.

References

Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

Reference (Deposit): Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials in the Anchorage quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1095, 184 p.

Reference (Deposit): Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, Southcentral Alaska: U.S. Bureau of Mines Open-File Report 5-84, 218 p., 2 sheets, scale 1:250,000.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Anchorage quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-409, 1 sheet, scale 1:250,000.

Reference (Deposit): Johnson, B.L., 1914, The Port Wells gold-lode district, Alaska: U.S. Geological Survey Bulletin 592-G, p. 195-236.

Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.

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