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Page 6026, results 150626 - 150650

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Reconnaissance of ground-water resources in the Eastern Coal Field Region, Kentucky
William E. Price, D. S. Mull, Chabot Kilburn
1962, Water Supply Paper 1607
In the Eastern Coal Field region of Kentucky, water is obtained from consolidated sedimentary rocks ranging in age from Devonian to Pennsylvanian and from unconsolidated sediments of Quaternary age. About 95 percent of the area is underlain by shale, sandstone, and coal of Pennsylvanian age. Principal factors governing the availability...
The concept of entropy in landscape evolution
Luna Bergere Leopold, Walter Basil Langbein
1962, Professional Paper 500-A
The concept of entropy is expressed in terms of probability of various states. Entropy treats of the distribution of energy. The principle is introduced that the most probable condition exists when energy in a river system is as uniformly distributed as may be permitted by physical constraints. From these general...
Short papers in geology, hydrology, and topography; articles 120-179
Water Resources Division, U.S. Geological Survey
1962, Professional Paper 450-D
This collection of 60 short papers on subjects in the fields of geology, hydrology, topography, and related sciences is the third of a series to be released during the year as chapters of Professional Paper 450. The papers in this chapter report on the scientific and economic results of current...
Floods in New Mexico, magnitude and frequency
Leon A. Wiard
1962, Circular 464
This report presents a method of determining the magnitude and frequency of floods that can be expected in New Mexico The discharge of the mean annual flood for various regions in the State is defined. Curves relate mean annual flood and drainage area. Drainage area was the only basin characteristic...