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Page 6778, results 169426 - 169450

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Publication Extents

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Short papers in the geologic and hydrologic sciences; Articles 1-146
Water Resources Division, U.S. Geological Survey
1961, Professional Paper 424-B
The scientific and economic results of work by the United States Geological Survey during the fiscal year 1961, the 12 months ending June 30, 1961, will be summarized in four volumes of which this is the first. This volume includes 146 short papers on a variety of subjects in the...
Ash-flow tuffs: Their origin, geologic relations, and identification
Clarence S. Ross, Robert L. Smith
1961, Professional Paper 366
Pyroclastic materials, which are interpreted as having been deposited by flowage as a suspension of ash in volcanic gas, are becoming widely recognized as major geologic episodes. These may be unconsolidated, indurated by partial welding, or welded into a compact rock. Many students are working on these materials and the...
Geology of the Yakataga district, Gulf of Alaska Tertiary province, Alaska
Don John Miller
1961, Open-File Report 61-102
This map of the Yakataga district is one of five maps at the same scale, showing the geology of the Gulf of Alaska Tertiary province (see index map). In this province, an accurate belt more than 300 miles long and 2 to 40 miles wide, sedimentary rocks of Tertiary age...
Ground-water resources of Olmsted Air Force Base, Middletown, Pennsylvania
Harold Meisler, Stanley Miller Longwill
1961, Water Supply Paper 1539-H
Olmsted Air Force Base is underlain by the Gettysburg shale of Triassic age. The Gettysburg shale at the Air Force Base consists of interbedded red sandstone, siltstone, and shale. The average strike of the strata is N. 43° E., and the strata dip to the northwest at an average angle...
Water levels in observation wells in Santa Barbara County, California, in 1960
P.M. Merritt
1961, Open-File Report 61-96
Investigation of the ground-water resources of Santa Barbara County was continued during 1960 by the U. S. Geological Survey in cooperation with the Santa Barbara County Water Agency. Monthly water-level measurements were made in 193 wells, in 9 of which automatic water-level recorders were operated. Earlier measurements, covering the period...
Progress in the application of landform analysis in studies of semiarid erosion
Stanley Alfred Schumm, R. F. Hadley
1961, Circular 437
The analysis of topographic and hydrologic data gathered during studies of erosion in semiarid areas of Western United States show the following relation: (a) Mean annual sediment yield from small drainage basins is related to a ratio of basin relief to length; (b) mean annual runoff from small drainage basins...