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Page 5575, results 139351 - 139375

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Proceedings of Conference XII; Earthquake prediction information
1980, Open-File Report 80-843
The U.S. Geological Survey in cooperation with five cosponsors: California Division of Mines and Geology, California Emergency Services, California Seismic Safety Commission, City of Los Angeles, and Federal Emergency Management Agency, convened a conference on Earthquake Prediction Information in Los Angeles during the period January 28-30, 1980. More than 100...
Floods in the Raccoon River basin, Iowa
Albert J. Heinitz
1980, Open-File Report 80-162
Evaluation of flood hazards, and the planning, design, and operation of various facilities on flood plains requires information on floods. This report provides information on flood stages and discharges, flood magnitude and frequency, bench mark data, and flood profiles for the Raccoon River and some of its tributaries. It covers...
Marine geologic map of the Puerto Rico insular shelf, Isla Caja de Muertos area
David K. Beach, James V. Trumbull
1980, Open-File Report 80-366
This marine geologic map covers the western half of the Isla Caja de Muertos shelf off the south coast of Puerto Rico. Coverage extends from Playa de Ponce on the west to Punta Petrona, near the town of Santa Isabel, on the east, a distance of 26 km. Within the...
Rubidium-strontium geochronology and plate-tectonic evolution of the southern part of the Arabian Shield
Robert J. Fleck, W.R. Greenwood, D.G. Hadley, R.E. Anderson, D. L. Schmidt
1980, Professional Paper 1131
Rubidium-strontium studies of Precambrian volcanic and plutonic rocks of the Arabian Shield document an early development of the Arabian craton between 900 and 680 m.y. (million years) ago. Geologic studies indicate an island-arc environment characterized by andesitic (dioritic) magmas, volcaniclastic sedimentation, rapid deposition, and contemporaneous deformation along north or northwest-trending...