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Page 805, results 20101 - 20125

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Preliminary assessment of the geochemistry and mineral favorability of the postorogenic granites of the southeastern Arabian Shield, Kingdom of Saudi Arabia
John S. Stuckless, G. VanTrump, E. H. Christiansen, C. A. Bush, C. M. Bunker, A.J. Bartel
1983, Open-File Report 83-486
Chemical analyses of samples for 19 postorogenic plutons from the southeastern Arabian Shield show that these rocks have average potassium/rubidium ratios (162) and average rubidium/strontium ratios (11.8) characteristic of highly evolved granites. Most of the analyzed samples are peraluminous. Three plutons are physically similar in terms of shape and megascopic...
Surficial geology map of the Great Heath, Washington County, Maine
Cornelia Clermont Cameron, Michael K. Mullen
1983, Open-File Report 83-4
The major portion of the Great Heath, comprising 2,645 acres in the Cherryfield quadrangle, Washington County, Maine, generally averaging 13 feet in thickness, but with as great an average as 15 feet, contain an estimated 6,953 ,000 short tons air-dried peat. The peat #s chiefly sphagnum moss with some reed-sedge...
Highlights of the 1983 Federal-state cooperative water resources program
B.K. Gilbert, T.J. Buchanan
1983, Open-File Report 83-763
The U.S. Geological Survey Federal-State Cooperative Water Resources Program in fiscal year 1983 continued to concentrate on investigations of highest priority to the Nation. Hydrologic data collection and interpretive studies were underway in every State, Puerto Rico, and several U.S. territories with focus on such current concerns as ground-water contamination,...
Hydrologic data for the drainage basins of Chatfield and Cherry Creek Lakes, Denver metropolitan area, Colorado
J. W. Gibbs, L.M. Arnold, R.L. Reed
1983, Open-File Report 83-857
Chatfield and Cherry Creek Lakes are flood control lakes constructed by the U.S. Army Corps of Engineers and leased to the Colorado Division of Parks and Recreation. Both lakes are in the Denver metropolitan area and provide a variety of recreational activities, including boating, camping, fishing, picnicking, and swimming. The...
Evidence of tectonic stability along the middle Columbia River, Washington, in Quaternary time
William Henry Hays, Robert L. Schuster
1983, Open-File Report 83-365
Observations of outcrops and Pleistocene-age surfaces along the Columbia River, between Priest Rapids Dam and Richland, Washington, provide evidence for recent tectonic stability that may be significant to planning of earthquake-sensitive engineered structures in the vicinity. Apparent continuity of layering in the Yakima Basalt (Miocene), Ringold Formation (Pliocene), and calcrete...
Paleomagnetic results from seven middle Paleozoic plutons in the Appalachian Piedmont of North and South Carolina
J.T. Hagstrum
1983, Open-File Report 83-916
Seven isotopically dated plutons of similar middle Paleozoic age (approx. 400 Ma) were sampled for paleomagnetic study. The results from 12 sites (152 samples) within these plutons show two types of remanence behavior that appear fairly consistent with rock composition. The more leucocratic rocks (9 sites) tend to yield single-component...
Ground-water records for the area surrounding the Chickasaw National Recreation Area, Murray County, Oklahoma
Robert L. Goemaat, Cass C. Willard
1983, Open-File Report 83-27
This report is a compilation of ground-water records, water levels, and water-quality field determinations, for wells in a 132 square-mile (342 square kilometer) area surrounding the Chickasaw National Recreational Area in south-central Oklahoma. This information was collected in cooperation with the National Park Service. The location of the study area...
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...