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David A. Phoenix

Publications and source records attributed to David A. Phoenix.

13 recordsLinked to original sources
USGS1966

Proposed water-supply investigations in Sidamo Province, Ethiopia

The present report describes the results of an air and ground hydrologic reconnaissance of some 32,000 square kilometers in Sidamo Province of southern Ethiopia. Existing (1966) water resources developments, chiefly for livestock and village supplies, include surface reservoirs, a few drilled wells, several clusters of dug wells in the Mega area, several scattered springs, and the perennial Dawa Parma River. Surface-water reservoirs range from hand-dug ponds of a few hundred cubic meters capacity to large machine-constructed excavations built to hold 62,000 cubic meters of water. All the existing drilled wells tap saturated alluvium at depths of less than 120 meters. The dug wells tap water-bearing zones in tuffaceous lacustrine deposits or stream-channel alluvium generally at depths of less than 30 meters. The springs mostly rise from fractured Precambrian quartzite and individual discharges are all less than 75 liters per minute. The report also outlines the terms of reference for a longer term water-resources investigation of the region including staffing, housing and equipment requirements and other logistic support.

Open-File Report↗
USGS1951

Preliminary statement of the analyses of ground water from the Morrison Formation, southwestern Colorado and southeastern Utah

As part of a study of the carnotite deposits of the Colorado Plateau,, samples of ground water from the Salt Wash sandstone and Brushy Basin shale members of the Morrison formation have been analyzed to determine their chemical character and metal content. The Salt Wash ground water is largely a bicarbonate solution with variable amounts of calcium and magnesium ions; that from the Brushy Basin is either a sulfate or bicarbonate solution with sodium, The ground water from the Salt Wash and Brushy Basin members is generally weakly alkaline In most samples, the metal ions of uranium, vanadium, copper, lead, and selenium are present in amounts of less than 1 part per million. It is concluded that if the ground water responsible for introduction of the uranium and vanadium metals into the Salt Wash was comparable to the recent ground water, it contained very small amounts of the metal ions.

Colorado;Utah↗
USGS1951

Preliminary report on the correlation between gamma-ray logs and permeability logs of the ore-bearing sandstone in the Morrison Formation Calamity Mesa, Mesa County, Colorado

A study of the hydrologic properties and geologic relations of the ore-bearing sandstone in the Salt Wash sandstone member of the Morrison formation has been undertaken because uranium and vanadium are believed to have been introduced into the sandstone by circulating ground water. This report describes the geologic and hydrologic characteristics of the ore-bearing sandstone as determined in the core samples from three diamond-drill holes on Calamity Mesa, Mesa County, Colo., and correlates these data with localized gamma-ray activity detected in the three drill holes. These data are illustrated on figure 1 by the combined geologic, permeability, porosity, and gamma-ray logs. This study is part of the program of geologic studies on the Colorado Plateau conducted by the Geological Survey on behalf of the Atomic Energy Commission. This preliminary report describing the results of this study has benefited from the suggestions and criticisms of L. B. Riley of the Geological Survey.

Colorado↗
USGS1949

Results and description of test drilling in Argenta Swamp near Battle Mountain, Nevada

In June 1949, the U. S. Geological Survey in cooperation with the State Engineer of Nevada, as part of the State-wide ground-water studies, drilled a test well on the flood plain of the Humboldt River about 4 miles northeast of Battle Mountain. This well was drilled for the purpose of obtaining information concerning the geologic and hydrologic character of the sediments underlying the flood plain, and the quality of the water in those sediments.

Nevada↗
USGS1949

Ground-water in the Austin area, Lander County, Nevada

The U.S. Geological Survey, in cooperation with the State Engineer of Nevada, made a preliminary survey of ground-water conditions in the Austin area, Nev., during the period July 25 to 28, 1949. The purpose was to evaluate ground-water conditions with special reference to the quantity of ground water that might be available in the area--an adequate water supply has been a constant problem throughout the history of the Austin area. The investigation was made by the writer under the supervision of Thomas W. Robinson, district engineer, Ground Water Branch, U.S. Geological Survey. Material assistance was given in the field by local residents. Frank Bertrand, water commissioner, Thomas Peacock, county assessor, and George McGinnis, county commissioner, guided the writer to springs new utilized by the town of Austin and rendered other valuable field assistance.

Nevada↗