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Adel A. R. Zohdy

Publications and source records attributed to Adel A. R. Zohdy.

At least 37 records · Page 2Linked to original sources

Schlumberger soundings in the Fish Springs Flat area, Juab County, Utah

In 1978 the U. S. Geological Survey made 43 Schlumberger soundings in the Fish Springs Flat area, Juab County, Utah. The purpose of this survey was to delineate water quality and obtain structural information. Fish Springs Flat consists mainly of Quaternery deposits of sand, gravel, clay, and silt. On the west Fish Springs Flat is bordered by the Fish Springs Range which is composed primarily of Paleozoic limestone. With the exception of a short section of metal fence and concrete culverts, disruptive cultural features did not appear to be present. The purpose of this report is to release the field data obtained in this survey. In addition the automatic inversion of the sounding curves, computer-generated geoelectric cross sections, and interpreted resistivity maps are also given and briefly described.

Utah↗

Schlumberger soundings near Fallon, Nevada

In 1976, the U.S. Geological Survey, in cooperation with the Nevada Division of Water Resources, made thirty one Schlumberger resistivity soundings near the city of Fallon, Nevada. The survey was made to estimate and delineate the volume of fill containing fresh ground water and to map the lateral extent and thickness of basalt layers which act as the principle aquifer in the area.

Nevada↗

Geology and geophysics of the southern Raft River Valley geothermal area, Idaho, USA

The Raft River valley, near the boundary of the Snake River plain with the Basin and Range province, is a north-trending late Cenozoic downwarp bounded by faults on the west, south, and east. Pleistocene alluvium and Miocene-Pliocene tuffaceous sediments, conglomerate, and felsic volcanic rocks aggregate 2 km in thickness. Large gravity, magnetic, and total field resistivity highs probably indicate a buried igneous mass that is too old to serve as a heat source. Differing seismic velocities relate to known or inferred structures and to a suspected shallow zone of warm water. Resistivity anomalies reflect differences of both composition and degree of alteration of Cenozoic rocks. Resistivity soundings show a 2 to 5 ohm·m unit with a thickness of 1 km beneath a large part of the valley, and the unit may indicate partly hot water and partly clayey sediments. Observed self-potential anomalies are believed to indicate zones where warm water rises toward the surface. Boiling wells at Bridge, Idaho are near the intersection of north-northeast normal faults which have moved as recently as the late (?) Pleistocene, and an east-northeast structure, probably a right-lateral fault. Deep circulation of ground water in this region of relatively high heat flow and upwelling along faults is the probable cause of the thermal anomaly.

Idaho↗