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Page 6162, results 154026 - 154050

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Diatremes and craters attributed to natural explosions
Eugene Merle Shoemaker
1956, Trace Elements Memorandum 1090
Diatremes - volcanic pipes attributed to explosion - and craters have been studied to infer the ultimate causes and physical conditions attending natural explosive processes. Initial piercement of diatremes on the Navajo reservation, Arizona was probably along a fracture propagated by a high-pressure aqueous fluid. Gas rising at high velocity along...
Sub-glacial volcanic eruptions
Donald Edward White
1956, Trace Elements Memorandum 1089
The literature on sub-glacial volcanic eruptions and the related flood phenomena has been reviewed as a minor part of the larger problem of convective and conductive heat transfer from intrusive magma. (See Lovering, 1955, for a review of the extensive literature on this subject.) This summary of data on sub-glacial...
Geology and ore deposits of the Monument Valley area, Apache and Navajo Counties, Arizona
Irving Jerome Witkind
1956, Open-File Report 57-124
In 1951 the U.S. Geological Survey undertook a program of uranium investigations in Apache and Navajo Counties, northeastern Arizona. The work had three major objectives. The first was to accumulate data basic to an understanding of the regional geology. The second was to appraise the Triassic strata as host rocks...
Geology and petrology of the Lava Mountains, San Bernardino County, California
George I. Smith
1956, Open-File Report 56-109
The Lava Mountains are a range of low mountains along the northern edge of the Mojave Desert, California. The pre-Tertiary rocks consist of a few swell pendants of metamorphic rocks in Atolia quartz monzonite. Overlying these are small patches of volcanic and sedimentary rocks, probably Tertiary, which project into the...
Preliminary report on waterpower possibilities of Bradley Lake, Alaska, with a chapter on tentative geologic conclusions on Bradley Lake power site
Fred A. Johnson, Kenneth S. Soward
1956, Open-File Report 56-62
The purpose of this report is to give a preliminary estimate of the power possibilities of Bradley Lake, Alaska, and to describe outstanding hydrologic, geologic and topographic features that might determine the character of development. Bradley Lake lies in the Kenai Mountains near the southwestern end of the Kenai Peninsula....
Geologic features of areas of abnormal radioactivity south of Ocala, Marion County, Florida
Gilbert H. Espenshade
1956, Trace Elements Memorandum 941
Areas of abnormal radioactivity south of Ocala, Marion County, Fla., discovered in 1953 by aerial survey, were investigated by surface examination and by 10 power auger drill holes. Inter-bedded clay, clayey sand, and uraniferous phosphorite occur in the areas of anomalous radioactivityo Miocene fossils occur at three localities in these...