Lindfors

The Lindfors is a zinc, gold, 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: Lindfors

Commodity

Primary: Zinc
Primary: Gold
Primary: Copper
Secondary: Lead
Secondary: Antimony

Location

State: Alaska
District: Valdez Creek

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: Quartz, sericite?, and pyrite.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Ore: Sphalerite
Ore: Tetrahedrite
Gangue: Quartz

Comments

Comment (Exploration): Status = Active

Comment (Reference): Primary Reference = Hawley and Clark, 1974

Comment (Workings): Workings / Exploration = One drill hole has explored the Lindfors zone at depth; there is a report of a shallow shaft, now collapsed, dug in the 1920's. Surface exploration consists of numerous pits and trenches. Close-spaced helicopter aeromagnetic and EM geophysical surveys have been flown over this prospect. In 1996, the State of Alaska flew a wider-spaced helicopter aeromagnetic survey that included this prospect (Burns, 1997).? Surface geochemistry values of 0.2 to 14 ppm gold, high silver, arsenic, lead, antimony and zinc have been reported (Hawley and Clark, 1974).

Comment (Geology): Geologic Description = The Lindfors prospect is about 1,500 feet south-southwest of the Golden Zone mine (HE043). The country rocks at the prospect are Permo-Triassic redbed sandstones, conglomerates, limestones and volcanoclastic sediments, which are intruded by Upper Cretaceous quartz diorite dikes. The deposit consists of quartz veins containing arsenopyrite, chalcopyrite, galena, pyrite, sphalerite, and tetrahedrite. Surface geochemistry values of 0.2 to 14 ppm gold, high silver, arsenic, lead, antimony and zinc have been reported (Hawley and Clark, 1974). The Lindfors deposit probably is a continuation of the deposit at the Golden Zone mine.

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

Comment (Geology): Age = Synchronous with the Golden Zone mineralization, dated as Late Cretaceous.

References

Reference (Deposit): Capps, S.R., 1919, Mineral resources of the upper Chulitna region: U.S. Geological Survey Bulletin 692-D, p. 207-232.

Reference (Deposit): Hawley, C.C., Meier, A.L., and Miller, R.L., 1968, Geochemical investigations at Antimony Creek antimony prospect, northern Talkeetna Mountains, Alaska: U.S. Geological Survey Open-File Report 337, 9 p.

Reference (Deposit): Ross, C.P., 1933, The Valdez Creek mining district, Alaska: U.S. Geological Survey Bulletin 849, p. 289-467.

Reference (Deposit): Hawley, C.C., Clark, A.L., and Benfer, J.A., 1968, Geology of the Golden Zone mine area, Alaska: U.S. Geological Survey Open-File Report 68-305, 16 p., 1 sheet, scale 1:2,400.

Reference (Deposit): Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-1062, 113 p.

Reference (Deposit): Hawley, C.C., and Clark, A.L., 1974, Geology and mineral deposits of the upper Chulitna district, Alaska: U.S. Geological Survey Professional Paper 758-B, p. 1-47, 2 sheets, scale 1:12,000 and 1:48,000.

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