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Page 985, results 24601 - 24625

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Preliminary summary of the U.S. Geological Survey strong-motion records from the October 15, 1979 Imperial Valley earthquake
R. L. Porcella, R.B. Matthiesen
1979, Open-File Report 79-1654
This report summarizes the data from near-in strong-motion accelerograph stations operated by the U.S. Geological Survey in the Imperial Valley of California at the time of the October 15, 1979 Imperial Valley earthquake. The purpose of this report is to alert others as to the nature of the strong-motion data...
Potentiometric surface of Floridan Aquifer, southwest Florida Water Management District and adjacent areas, May 1979
R. M. Wolansky, L. R. Mills, W. M. Woodham, C. P. Laughlin
1979, Open-File Report 79-1255
A May 1979 potentiometric-surface map depicts the annual low water-level period. Potentiometric levels declined 4 to 21 feet between September 1978 and May 1979, in the citrus and farming sections of southern Hillsborough, northern Hardee, southwestern Polk, northwestern DeSoto, and Manatee Counties. Water levels in these areas are widely affected...
Altered volcanic ash partings in Wasatch Formation coal beds of the northern Powder River basin: composition and geologic applications
Bruce Forbes Bohor, Richard E. Phillips, Richard M. Pollastro
1979, Open-File Report 79-1203
In contrast to the coal-bearing rocks of the Appalachian and Eastern Interior Basins, those of the northern Powder River Basin exhibit more complex stratigraphic and facies relationships, and regional correlations of coal beds are, therefore, more difficult to establish. Recently, however, several coal beds in the Powder River Basin, as...
A plan to study the aquifer system of the Central Valley of California
Gilbert L. Bertoldi
1979, Open-File Report 79-1480
Unconsolidated Quaternary alluvial deposits comprise a large complex aquifer system in the Central Valley of California. Millions of acre-feet of water is pumped from the system annually to support a large and expanding agribusiness industry. Since the 1950's, water levels have been steadily declining in many areas of the valley...
Seawater intrusion, south coast of Puerto Rico, 1966-77
Jose Raul Diaz
1979, Open-File Report 79-1334
A salinity reconnaissance of the south coast alluvial aquifer of Puerto Rico, including the areas of Guenica, Guayanilla-Yauco, Tallaboa, Juana Diaz, and Jobos was made during 1966-68. In this investigation seawater was detected in the Guayanilla-Yauco and Tallaboa areas.Since 1968, water level and quality-of-water data have been collected from selected...