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Page 6038, results 150926 - 150950

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Gravity survey in the eastern Snake River Plain, Idaho — A progress report
Thomas R. LaFehr
1961, Open-File Report 62-74
A regional gravity survey in the eastern Snake River Plain was conducted in the early summer of 1961. Seven hundred and seven gravity stations were established between latitudes 42°15'N and 44°30'N between longitudes 111°30'W and 114°30'W. Three hundred and twenty-five of these stations were located in 2,700 square miles of...
Availability of ground water in Lyon County, Minnesota
Harry G. Rodis
1961, Circular 444
Lyon County is in southwestern Minnesota, about 150 miles southwest of Minneapolis and St. Paul The basement rocks in the area consist of granite and quartzite of Precambrian age. These materials are in turn overlain by shale and sandstone of Cretaceous age, glacial drift of Pleistocene age, and alluvium of...
Drainage basins, channels, and flow characteristics of selected streams in central Pennsylvania
Lucien M. Brush Jr.
1961, Professional Paper 282-F
The hydraulic, basin, and geologic characteristics of 16 selected streams in central Pennsylvania were measured for the purpose of studying the relations among these general characteristics and their process of development. The basic parameters which were measured include bankfull width and depth, channel slope, bed material size and shape, length...
Synopsis of geologic and hydrologic results: Chapter A in Geological Survey research 1961
Water Resources Division, U.S. Geological Survey
1961, Professional Paper 424-A
The Geological Survey is engaged in many different kinds of investigations in the fields of geology and hydrology. These investigations may be grouped into several broad, inter-related categories as follows:(a) Economic geology, including engineering geology(b) Regional geologic mapping, including detailed mapping and stratigraphic studies(c) Resource and topical studies(d) Ground-water studies(e)...
Botanical Evidence of the Modern History of Nisqually Glacier, Washington
Robert S. Sigafoos, E. L. Hendricks
1961, Professional Paper 387-A
A knowledge of the areas once occupied by mountain glaciers reveals at least part of the past behavior of these glaciers. From this behavior, inferences of past climate can be drawn. The maximum advance of Nisqually Glacier in the last thousand years was located, and retreat from this point is...
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...
Salinity and hydrology of closed lakes
Walter Basil Langbein
1961, Professional Paper 412
Lakes without outlets, called closed lakes, are exclusively features of the arid and semiarid zones where annual evaporation exceeds rainfall. The number of closed lakes increases with aridity, so there are relatively few perennial closed lakes, but "dry" lakes that rarely contain water are numerous.Closed lakes fluctuate in level to...