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Page 5711, results 142751 - 142775

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Standards for the classification of public coal lands
N. Wood Bass, Henry L. Smith, George Henry Horn
1970, Circular 633
In order to provide uniformity in the classification of coal lands in the public domain, certain standards have been prepared from time to time by the U.S. Geological Survey. The controlling factors are the depth, quality, and thickness of the coal beds. The first regulations were issued April 8, 1907;...
Urban sprawl and flooding in southern California
S. E. Rantz
1970, Circular 601-B
The floods of January 1969 in south-coastal California provide a timely example of the effect of urban sprawl on flood damage. Despite recordbreaking, or near recordbreaking, stream discharges, damage was minimal in the older developed areas that are protected against inundation and debris damage by carefully planned flood-control facilities, including...
Elemental sulfur in Eddy County, New Mexico
Jim S. Hinds, Richard R. Cunningham
1970, Circular 628
Sulfur has been reported in Eddy County, N. Mex., in rocks ranging from Silurian to Holocene in age at depths of 0-15,020 feet. Targets of present exploration are Permian formations in the Delaware Basin and northwest shelf areas at depths of less than 4,000 feet. Most of the reported sulfur...
A review of water resources of the Umiat area, northern Alaska
John R. Williams
1970, Circular 636
Surface-water supplies from the Colville River, small tributary creeks, and lakes are abundant in summer but limited in winter by low or zero flow in streams and thick ice cover on lakes. Fresh ground water occurs in unfrozen zones in alluvium and in the upper part of bedrock beneath the...
Chemical quality of Michigan streams
Warren W. Wood
1970, Circular 634
Concentrations of chemical constituents of Michigan streams exhibit regional patterns that are primarily a function of geology and evapotranspiration. However, in some areas waste disposal by municipal and industrial organizations has altered the natural distribution and concentrations of dissolved material. Concentration and areal distribution of chemical constitutents were found to...
Sediment problems in urban areas
Harold P. Guy
1970, Circular 601-E
A recognition of and solution to sediment problems in urban areas is necessary if society is to have an acceptable living environment. Soil erosion and sediment deposition in urban areas are as much an environmental blight as badly paved and littered streets, dilapidated buildings, billboard clutter, inept land use, and...