Zinc deposits of Groundhog Basin, Wrangell district, southeastern Alaska

Gault, Hugh Richard

doi:10.3133/ofr4432

Cited by 3 publications

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“…The sulfides, pyrrhotite, pentlandite and chalcopyrite, occur in tho host rocks as disseminated grains, veinlets, and lenticular masses as larse as 35 feet long and 5 feet in diameter. The sulfide veinlots occur along fractures and fissures and are commonly less than I mm thick.…”

Section: · Ore Deoos Itsmentioning

confidence: 99%

Mineral resources of Alaska prepared as a brief guide to the more important areas of mineral potential in the state

Hartman¹,

McGee²

1975

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Section: · Ore Deoos Itsmentioning

confidence: 99%

Mineral resources of Alaska prepared as a brief guide to the more important areas of mineral potential in the state

Hartman¹,

McGee²

1975

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“…Selected references to publications on zinc are Gault (1944); Gault, Rossman,and Flint (1944); Muir, Thomas, and Sanford (1947); Reed (1933); Robinson (1944); Wahrhaftig {1944); and Webber, Moss, and Rutledge (1946).…”

Section: Zinc and Cadmil)mmentioning

confidence: 99%

Potential Alaskan mineral resources for proposed electrochemical and electrometallurgical industries in the upper Lynn Canal area, Alaska

Twenhofel¹

1953

Circular

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Diversion of the headwaters of the Yukon River through the Coast Range into the Taiya River valley would make available about one million horsepower of electric energy. The only foreseeable use for any substantial block of this power is by electrochemical and electrometallurgical industries. This report discusses the raw materials needed by such industries and possible Alaskan sources of some of the materials. The industries considered as potential consumers of Yukon-Taiya power, in decreasing order as potential power claimants, are as follows: Nonferrous metals (including aluminum, magnesium, copper, zinc, and nickel), ferroalloys (including ferrosilicon, ferrochromium, ferromanganese, and ferrotungsten), calcium carbide, artificial abrasives, nitrogen compounds, chlorine and caustic soda, iron and steel, carbon and graphitized products, and phosphorus and phosphorus compounds. 1 Some of the ores and other raw materials required for s•uch industries might be obtained in Alaska. The bulk of the materials, however, for large operations must be imported.. The usual aluminum um ores are not known and not likely to be found in Alaska. Possible AlasKa.n sources of magnesium are sea water, dolomite, and olivine, although there are no data on the magnesium content of Alaskan sea water or dolomite. Unlimited resources of highmagnesium• olivine are available whenever magnesium production from olivine becomes economically feasible. The known copper resources of Alaska are limited and most of the reserves are in marginal or submarginal deposits potentially of interest also for their iron or nickel content. Copper mineralization, however, is widespread and copper production from Alaska has been second only to gold. Known Alaskan zinc resources are small although occurrences are widespread and numerous. 'Because there are no zinc smelters on the Pacific coast, interest in development of Alaskan zinc deposits has been minor. Alaskan•

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Molybdenite investigations in southeastern Alaska

Twenhofel¹,

Robinson²,

Gault³

1946

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Page PLATE 1. Geologic sketch map of head of Muir Inlet, Glacier Bay, southeastern Alaska________________________________ In pocket 2. Geologic map of Nunatak area, Muir Inlet, Glacier Bay, southeastern Alaska____-__________________.________ In pocket 3. Geologic isometric block diagram of Nunatak area, Muir Inlet, Glacier Bay, southeastern Alaska______________ In pocket 4. Geology and topography of Shakan molybdenite deposit, Kosciusko Island, southeastern Alaska_______________ In pocket 5. Map of adit, Shakan molybdenite deposit, Kosciusko Island, southeastern Alaska._________________________ In pocket 6. Sample locations and analyses, Shakan molybdenite deposit, Kosciusko Island, southeastern Alaska_________________ In pocket 7. Geologic map of east-central Baker Island, southeastern Alaska.___________________________________________ In pocket 8. Geology of molybdenite deposits, Baker Island, southeastern Alaska.___________________________________________ In pocket FIGURE 1. Index map of southeastern Alaska showing the location of molybdenite deposits investigated in 1942 and 1943____ 9 2. Geologic reconnaissance map of vicinity of Shakan molybdenite deposit, Kosciusko Island, southeastern Alaska._ 19 3. Diagram showing probable sequence of mineralization, Shakan molybdenite deposit, Kosciusko Island, southeastern Alaska.._..

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Zinc deposits of Groundhog Basin, Wrangell district, southeastern Alaska

Cited by 3 publications

References 0 publications

Mineral resources of Alaska prepared as a brief guide to the more important areas of mineral potential in the state

Mineral resources of Alaska prepared as a brief guide to the more important areas of mineral potential in the state

Potential Alaskan mineral resources for proposed electrochemical and electrometallurgical industries in the upper Lynn Canal area, Alaska

Molybdenite investigations in southeastern Alaska

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