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Page 5569, results 139201 - 139225

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Not all publications have extents, not all extents are completely accurate
The Boulder Creek Batholith, Front Range, Colorado
Dolores J. Gable
1980, Professional Paper 1101
The Boulder Creek batholith is the best known of several large Precambrian batholiths of similar rock composition that crop out across central Colorado. The rocks in the batholith belong to the calc-alkaline series and range in composition from granodiorite through quartz diorite (tonalite) to gneissic aplite. Two rock types dominate':...
Ground water in the Thousand Oaks area, Ventura County, California
James J. French
1980, Water-Resources Investigations Report 80-63
The ground-water basin beneath the city of Thousand Oaks, Calif. , corresponds closely in area with the surface-water drainage basin of Conejo Valley. Before World War II there was little ground-water development. After World War II, urban development put a stress on the ground-water basin; many wells were drilled and...
Petroleum-resource appraisal and discovery rate forecasting in partially explored regions
Lawrence J. Drew, J.H. Schuenemeyer, David H. Root, E. D. Attanasi
1980, Professional Paper 1138-A-C
PART A: A model of the discovery process can be used to predict the size distribution of future petroleum discoveries in partially explored basins. The parameters of the model are estimated directly from the historical drilling record, rather than being determined by assumptions or analogies. The model is based on...
Chemical, physical, and radiological quality of selected public water supplies in Florida : January-May 1979
Bernard J. Franks, G. A. Irwin
1980, Water-Resources Investigations Report 80-13
Verde Valley--an area of complex geology where the crust of the North American plate changes from unstable to stable--is in central Arizona in the transition zone between the Basin and Range and the Colorado Plateaus tectonic provinces. Volcanism and tectonism have been progressing northeastward along the transition zone for about...
Summary of the river-quality assessment of the upper Chattahoochee River basin, Georgia
R.N. Cherry, R.E. Faye, J. K. Stamer, R.L. Kleckner
1980, Circular 811
The river-quality assessment of the Upper Chattahoochee River Basin included studies of (1) the impact of heat loads on river quality, (2) sediment transport and deposition, (3) magnitude and nature of point and nonpoint discharges, and (4) phytoplankton growth in the river and reservoirs. The combined thermal effects of flow...
Flood-prone area maps of three sites along the Trans-Alaska Pipeline, Alaska
Robert D. Lamke, Stanley H. Jones
1980, Open-File Report 80-209
The Bureau of Land Management requested on May 3, 1979 that the U.S. Geological Survey determine the base (100-year) flood-plain limits at three sites (fig. 1) along the Trans-Alaska Pipeline System Highway (Haul Road) between the Yukon River and Prudhoe Bay in order to issue land-use permits. The Alaska Department...
Water-resources investigations of the U.S. Geological Survey in Colorado; fiscal year 1980
Stephen R. Blakely
1980, Open-File Report 80-442
Water-resources data-collection activities for October 1, 1979, through September 30, 1980, are summarized for Colorado and bordering States. Fifty-four interpretive hydrologic investigations include: 9 statewide investigations, 6 regional investigations, 11 investigations in the Missouri River basin, 7 investigations in the Arkansas River basin, 3 investigations in the Rio Grande basin,...
Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the McCarthy Quadrangle, Alaska
1980, Open-File Report 80-885
These summaries of data on metallic and selected nonmetallic mineral occurrences and lists of selected references to .them in Geological Survey, U.S. Bureau of Mines, and State of Alaska Division of Geological and Geophysical Surveys (and predecessor State and Territorial agencies) reports and maps and a very.few journal articles are...