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Page 6147, results 153651 - 153675

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology of possible petroleum provinces in Alaska
Don John Miller, Thomas G. Payne, George Gryc
1957, Open-File Report 57-72
The history of petroleum exploration in Alaska and the geology of possible petroleum provinces in Alaska are reviewed. Maps showing Alaska's major Mesozoic and Tertiary tectonic elements, possible petroleum provinces, and indications of petrol, are included in this report. Annotated references in Geological Survey publications relating to petroleum and oil...
A gamma-ray absorption method for the determination of uranium in ores
Alfred F. Hoyte
1957, Open-File Report 57-55
Current radioactivity methods used for the determination of uranium in ores are based on the assumption that secular equilibrium exists between the daughter products. Eichholz has developed a method which is claimed to be independent of the degree of equilibrium, but it has been found to be inadequate when used...
A regional gravity survey of the Cuyuna Iron Range, Minnesota
George Austin Durfee
1957, Open-File Report 57-41
A regional gravity survey of the Cuyuna Iron Range, Minnesota, was conducted during the summer of 1955 by the U. S. Geological Survey. It was believed that gravity data would aid in the understanding of the major structures of the range. It was found that synclinal and steeply dipping structures...
Pegmatite geology of the Shelby district, North Carolina
Wallace R. Griffitts
1957, Open-File Report 58-40
The Shelby district is divided into a northwestern and a southeastern province. The rocks in the southeastern province include various units in the Battleground schist formation and the Yorkville granodiorite. Those in the northwestern province include the Carolina gneiss, with its Shelby gneiss member, and the Toluca quartz monzonite. The...
Geology of the Basin Quadrangle, Montana
Edward Thompson Ruppel
1957, Open-File Report 58-87
The Basin quadrangle, in the northern part of the Boulder Mountains between Butte and Helena, Montana, is underlain principally by igneous rocks that include Late Cretaceous quartz latitic and andesitic Elkhorn Mountains volcanics, quartz monzonite and related rocks of the Boulder batholith, Oligocene(?) quartz latitic volcanic rocks, and late Miocene(?)-early...
Glacial features and surficial deposits of the Malaspina district, Alaska
George Plafker, Don John Miller
1957, Open-File Report 57-91
The Malaspina district extends about 50 miles along the north shore of the Gulf of Alaska from Icy Bay and the Guyot Glacier on the west to Yakutat Bay and Disenchantment Bay on the east (see index map). The district includes a coastal lowland flanked on the north by a...
Stromatolites of the Belt Series in Glacier National Park and Vicinity, Montana
Richard Rezak
1957, Professional Paper 294-D
Eight zones of Precambrian stromatolites that are useful for local correlation are recognized in the Belt series of the Glacier National Park region, Montana. The zones vary in composition, thickness, and areal extent. Some are widespread and extend into neighboring regions, and others occur only in small areas. Their names...