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Page 4487, results 112151 - 112175

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Tectonic implications of the Indian Run Formation— A newly recognized sedimentary mélange in the northern Virginia Piedmont
Avery Ala Drake
1985, Professional Paper 1324
Sedimentary melange in the northeastern part of Fairfax County, Virginia, contains both mesoscopic and mappable fragments of Accotink Schist, Lake Barcroft Metasandstone, metagabbro, and ultramafic rocks as well as smaller fragments of other rock types. This melange was originally mapped as the Sykesville Formation, a major precursory sedimentary melange in...
Hydrogeologic data related to the potential for stock-water development on federally owned rangeland near Dillon, Montana
J. F. Levings
1985, Open-File Report 85-170
Existing hydrogeologic data and information were synthesized for 20 sites on federally owned rangeland near Dillon, Montana. The purpose was to assist the U.S. Bureau of Land Management in evaluating the potential for developing additional stock-water supplies. Hydrologic and geologic conditions at most of the sites were verified by onsite...
Hydrologic data for urban studies in the Houston, Texas, metropolitan area, 1981
Fred Liscum
1985, Open-File Report 85-163
Hydro! oqic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, and Houston. Studies have been completed in the Dallas-Fort Worth and San Antonio areas. The U.S. Geological Survey, in cooperation with the city of Houston, began studies...
Geochemistry of metavolcanic rocks from the Ranyah area, Kingdom of Saudi Arabia
Robert C. Greene
1985, Open-File Report 85-1
Major-element analyses of 26 samples from seven map units of metavolcanic rocks from the Ranyah area are compared with analyses in the literature of rocks from known tectonic settings. The evidence suggests that most of the layered rocks of the Ranyah area originated in immature island arcs. The Khaniq formation...
Streamflow and sediment data collected at seven stream-gaging stations in the James River basin downstream from Forestburg, South Dakota, from October 1, 1982 to September 30, 1983
J.R. Little
1985, Open-File Report 85-156
A compilation of streamflow and suspended-sediment data collected from October 1, 1982, to September 30, 1983, at seven gaging stations in the James River basin downstream from Forestburg, South Dakota, is presented in tabular and graphic form. Three of the gaging stations are on the main stem and four are...
The Salma Caldera complex, northeastern Arabian Shield, Kingdom of Saudi Arabia
K.S. Kellogg
1985, Open-File Report 85-370
The upper Proterozoic Salma caldera is genetically part of an elongate alkali granitic massif, Jabal Salma. Comenditic ash-flow tuffs, the oldest recognized rocks of the caldera complex, were erupted during caldera collapse associated with the rapid evacuation of the upper, mildly peralkaline part of a zoned magma reservoir. Within the...
Data processing programs for aerial gamma-ray data
Joseph S. Duval1
1985, Open-File Report 85-359
The U.S. Geological Survey (USGS) uses computer programs to process aerial gamma-ray data; some do editing and data manipulation to allow for corrections. Programs to convert flight-line data to latitude-longitude coordinates are included. Plotting programs include contour plotting, profile plots, and photographic raster plots....
An example expert system for the interpretation of depositional environments
K. B. Krystinik
1985, Open-File Report 85-30
During 1983 the U.S. EPA requested the U.S. Geological Survey and the Missouri Department of Natural Resources to study the geology, water movement, and sediment characteristics of Sugar, Romaine, and Rock Creek basins in Jefferson County, Missouri. The information was needed because the EPA had confirmed the presence of dioxin...
Regional geochemical study of the felsic plutonic rocks in the Nuqrah Quadrangle, sheet 25E, Kingdom of Saudi Arabia
W. E. Hall, David Dellinger, G.I. Selner
1985, Open-File Report 85-25
A regional geochemical investigation of the felsic plutonic rocks of the Nuqrah quadrangle, sheet 25 E, Kingdom of Saudi Arabia, in which pan concentrates of 384 wadi samples, and 145 rock samples, were collected, defined two separate and distinct anomalous areas. One area contains Jabal Tuwalah and Jabal Awja, and...