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Page 430, results 10726 - 10750

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Preliminary report on the Nelson and Radovan copper prospects, Nizina district, Alaska
C.J. Sainsbury
1952, Open-File Report 52-134
Renewed copper exploration by Alaska Copper Mines, Incorporated, at the Nelson and Radovan prospects, Nizina district, Alaska, led the Geological Survey in 1951 to map in detail the Nelson fault block, and to re-examine the old workings. In addition, two new prospects were studied. The Nelson fault block is cut by...
Heavy-mineral analysis of sedimentary rocks of northern Alaska
Robert Hamilton Morris
1952, Open-File Report 52-102
The Navy Oil Unit of the United States Geological Survey has been investigating the geology of Naval Petroleum Reserve No. 4, northern Alaska. As part of this program, heavy-mineral samples were prepared from cores of the test wells and core holes and studied to determine stratigraphic correlations. Using the following...
Marl deposits in the Wasilla area, Alaska
Robert M. Moxham, Richard A. Eckhart
1952, Open-File Report 52-104
Marl occurs in several localities in the Cook Inlet area in south-central Alaska. The most significant known deposits are found in the Wasilla area, about 30 miles north of the city of Anchorage.In this area marl has been deposited in three fresh water lakes--Wasilla Lake, Finger Lake and Lucile Lake....
Interim report on an appraisal of the uranium possibilities of Alaska
Helmuth Wedow, Max G. White, Robert M. Moxham
1952, Open-File Report 52-165
Summaries of the geology and mineral deposits, and appraisals of the uranium possibilities of the various regions of Alaska are presented in this report. A short statement on previous knowledge and investigation of radioactive materials in the Territory is also given. The review of data and appraisal for the Seward...
Pumice deposits in the Alaska Peninsula-Cook Inlet region
R.M. Moxham
1952, Open-File Report 52-103
Three principal areas of pumice deposition have been found in the Alaska Peninsula-Cook Inlet region: Katmai National Monument, Augustine Island, and the Veniaminof-Aniakchak area. Vast quantities of pumice were deposited in Katmai National Monument resulting from the eruption of Mt. Katmai and related volcanic action in 1912. The principal deposits in...
Magmatic differentiation in tertiary and quaternary volcanic rocks from Adak and Kanaga Islands, Aleutian Islands, Alaska
Robert R. Coats
1952, Geological Society of America Bulletin (63) 485-514
Samples of 17 volcanic rocks of Tertiary and Quaternary age from Adak and Kanaga islands have been chemically analyzed and studied microscopically. Spectrograms have been made of 10 of them. The rocks from Adak represent one center of possibly older Tertiary age and two centers of younger Tertiary or Quaternary age. The rocks from Kanaga Island represent both a shield volcano of possibly Tertiary age, partly destroyed by the formation of a caldera, and a young cone of Quaternary age that...
Late quaternary geology and frost phenomena along Alaska Highway, Northern British Columbia and Southeastern Yukon
Charles Storrow Denny
1952, Geological Society of America Bulletin (63) 883-922
Reconnaissance field work along the Alaska Highway in northern British Columbia and southeastern Yukon furnishes preliminary data on the later Quaternary history of the region, and on the processes and results of intensive frost action. Extensive erosion surfaces were developed prior to glaciation, such as the Alberta Plateau of northeastern British Columbia and the Yukon Plateau in southern Yukon. In the region from Dawson Creek to Fort Nelson, British Columbia, the drift is dominantly...
Pimpled plains of Eastern Oklahoma
M. M. Knechtel
1952, Geological Society of America Bulletin (63) 689-700
Patterns formed by the networks of furrows separating the natural mounds of pimpled plains in eastern Oklahoma are regarded as attributable to shrinkage-polygon systems of coarse texture comparable to those occurring (1) in mound-studded parts of the northwestern United States that are underlain by vertically jointed basalt, (2) in tracts of Alaskan tundra that are occupied...
Preliminary summary review of thorium-bearing mineral occurrences in Alaska
Robert G. Bates, Helmuth Wedow Jr.
1952, Trace Elements Memorandum 339
Thorium-bearing minerals are known at 47 localities in Alaska. At these localities the thorium occurs as a major constituent or in minor amounts as an impurity in one or more of the following 12 minerals: allanite, columbite, ellsworthite, eschynite, gummite, monazite, orangite, parisite, thorianite, thorite, xenotime, and zircon....
Radioactive minerals in the Yakataga beach placers, southern Alaska
Robert M. Moxham
1952, Trace Elements Memorandum 326
Radioactivity of nine samples of beach placer deposits in the Yakataga area, southern Alaska, was studied in 1948. The samples were given to the Geological Survey by prospectors operating in the area operating in the area. The heavy-mineral fractions from the concentrates average 0.044 percent equivalent uranium....
Radioactivity at the Copper Creek copper lode prospect, Eagle district, east-central Alaska
Helmuth Wedow, Gene Edward Tolbert
1952, Trace Elements Investigations 195
Investigation of radioactivity anomalies at the Copper Creek copper lode prospect, Eagle district, east-central Alaska, during 1949 disclosed that the radioactivity is associated with copper mineralization in highly metamorphosed sedimentary rocks. These rocks are a roof pendant in the Mesozoic "Charley River" batholith. The radioactivity is probably all due to...