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Page 5579, results 139451 - 139475

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Not all publications have extents, not all extents are completely accurate
United States mineral resources
Donald A. Brobst, Walden P. Pratt, editor(s)
1973, Professional Paper 820
The work on this volume began in January 1972, but in a broader sense its production began many years ago. The chapters were written by geologists most of whom have had many years of experience studying the geology of mineral deposits, and more particularly the commodities about which they have...
Map showing configuration of the potentiometric surface of the principal aquifer and its approximate position relative to land surface, Sugar House quadrangle, Salt Lake County, Utah, February 1972
R. W. Mower
1973, IMAP 766-L
The potentiometric surface is an imaginary surface representing the static head of ground water and defined by the levels to which ground water would rise in tightly cased wells. The potentiometric surface of the principal aquifer within the area of the Sugar House quadrangle ranges from about 20 feet above,...
Bedrock topography of southeast Iowa
Robert E. Hansen
1973, IMAP 808
The bedrock in Iowa is covered nearly everywhere by unconsolidated deposits of glacial drift and alluvium, which range in thickness from less than 1 foot to more than 400 feet, and from less than 1 foot to about 60 feet, respectively. The configuration of the bedrock surface is the result...
Geologic map of the Grimaldi quadrangle of the Moon
J.F. McCauley
1973, IMAP 740
The Grimaldi quadrangle lies at the southwest margin of Oceanus Procellarum about 1,000 km east of Orientale, the youngest of the lunar multi-ringed basins. The distal ends of the...