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Page 4732, results 118276 - 118300

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Water resources data, Florida, water year 1982; Volume 1B. Northeast Florida ground water
L.D. Fayard, D.M. Bonnet, R.G. Belles
1983, Water Data Report FL-82-1B
Water resources data for the 1982 water year for northeast Florida consist of records of stage, discharge, and water quality of streams; elevation and water quality of lakes and reservoirs; water-levels and water quality of wells; and discharge and water quality of springs. Additional water data were collected at various...
Mineral surveys by the Geological Survey and the Bureau of Mines of Bureau of Land Management Wilderness Study Areas
Helen M. Beikman, Margaret Hinkle, Twila Frieders, Susan M. Marcus, James R. Edward
1983, Circular 901
The Federal Land Policy and Management Act of 1976 instructed the Bureau of Land Management (BLM) to review all public lands under its jurisdiction and to determine their suitability or nonsuitability for wilderness designation. As part of this process, the Geological Survey and the Bureau of Mines conduct mineral surveys...
Summary of Tertiary investigations in western Saudi Arabia, current work by the U.S. Geological Survey and recommended future studies
Donald G. Hadley, Dwight Lyman Schmidt, Robert Griffin Coleman
1983, Open-File Report 83-487
In 1936, geologic work related to the Tertiary System in western Saudi Arabia began with a study of the Umm Gerad barite deposit by K. S. Twitchell. In 1944, a study focusing specifically on Tertiary rocks was conducted by Steineke and others near Jiddah. Small-scale mapping of Tertiary sequences began...
A practical, low-noise coil system for magnetotellurics
William D. Stanley, Richard D. Tinkler
1983, Open-File Report 83-85
Magnetotellurics is a geophysical technique which was developed by Cagnaird (1953) and Tikhonov (1950) and later refined by other scientists worldwide. The technique is a method of electromagnetic sounding of the Earth and is based upon the skin depth effect in conductive media. The electric and magnetic fields arising from...
Middle Tertiary continental rift and evolution of the Red Sea in southwestern Saudi Arabia
Dwight Lyman Schmidt, Donald G. Hadley, Glen F. Brown
1983, Open-File Report 83-641
Middle Tertiary rift volcanism in a continental-rift valley in the Arabian-Nubian Shield was the first surface expression of active mantle convection beneath an axis that was to become the Red Sea. Investigation of the coastal plain of southwestern Saudi Arabia suggests that the rift valley was filled with basaltic and...
Studies in Tertiary stratigraphy of the California Coast Ranges
Earl E. Brabb, editor(s)
1983, Professional Paper 1213
The correlation of rocks of Paleogene age in California with those in Europe has had a long and complex history that can only be highlighted here. Kleinpell (1938, p. 168-181), in his classic work defining Miocene benthic1 foraminiferal stages of California, attempted to correlate faunas of California with those of...
Potentiometric surface of the Floridan Aquifer and its use in management of water resources, St. Johns River Water Management District, Florida
Harry George Rodis, D.A. Munch
1983, Water-Resources Investigations Report 83-4176
The Floridan aquifer supplies most of the fresh groundwater for municipal, industrial, and agricultural uses within the 12,400 sq mi St. Johns River Water Management District. Because of the growing demand for water and the variation in rainfall, resource managers need timely information on short-term and long-term changes in the...
Laboratory safety handbook
E.L. Skinner, C.A. Watterson, J.C. Chemerys
1983, Open-File Report 83-131
Safety, defined as 'freedom from danger, risk, or injury,' is difficult to achieve in a laboratory environment. Inherent dangers, associated with water analysis and research laboratories where hazardous samples, materials, and equipment are used, must be minimized to protect workers, buildings, and equipment. Managers, supervisors, analysts, and laboratory support personnel...
Regional flow in the Dakota aquifer: A study of the role of confining layers
John D. Bredehoeft, C. E. Neuzil, P. C. Milly
1983, Water Supply Paper 2237
The Dakota Sandstone in South Dakota is one of the classic artesian aquifers; it was first studied by N. H. Darton at the turn of the century. Since then, hydrogeologists have debated the source of the large quantities of water which have been discharged by artesian flow from the Dakota....
A two-dimensional, finite-difference model of the high plains aquifer in southern South Dakota
K.E. Kolm, H. L. Case III
1983, Water-Resources Investigations Report 83-4175
The High Plains aquifer is the principal source of water for irrigation, industry, municipalities, and domestic use in south-central South Dakota. The aquifer, composed of upper sandstone units of the Arikaree Formation, and the overlying Ogallala and Sand Hills Formations, was simulated using a two-dimensional, finite-difference computer model. The maximum...