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164882 results.

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Page 6158, results 153926 - 153950

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Publication Extents

Not all publications have extents, not all extents are completely accurate
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...
River channel patterns: Braided, meandering, and straight
Luna Bergere Leopold, M. Gordon Wolman
1957, Professional Paper 282-B
Channel pattern is used to describe the plan view of a reach of river as seen from an airplane, and includes meandering, braiding, or relatively straight channels.Natural channels characteristically exhibit alternating pools or deep reaches and riffles or shallow reaches, regardless of the type of pattern. The length of the...
River flood plains: Some observations on their formation
M. Gordon Wolman, Luna Bergere Leopold
1957, Professional Paper 282-C
On many small rivers and most great rivers, the flood plain consists of channel and overbank deposits. The proportion of the latter is generally very small.Frequency studies indicate that the flood plains of many streams of different sizes flowing in diverse physiographic and climatic regions are subject to flooding about...