Short-term fluctuations in barometric pressure, soil-gas radon, and gamma radiation
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Open-File Report↗
Geology topics
C. Gilbert Bowles
Publications and source records attributed to C. Gilbert Bowles.
Helium investigations in the Edgemont uranium district, southern Black Hills, South Dakota and Wyoming
No abstract available.
South Dakota, Wyoming↗
Progress report on the development of a specific-ion logging system for uranium exploration
Substantial progress has been made in the development of a portable system for borehole logging of Eh, pH, and S in formation waters. Recent improvements in reference and pH electrode construction contributed to an improved quality of field data and permitted recognition of design deficiencies. Modification of the system has corrected these deficiencies and improved both instrument reliability and its suitability for measuring ionic activities.
Open-File Report↗
Stratigraphy of the Inyan Kara group and localization of uranium deposits, southern Black Hills, South Dakota and Wyoming
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Professional Paper↗
Mineral resources of the Mount Baldy primitive area, Arizona
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Bulletin↗
Present-day ground water, a possible guide to uranium exploration in the southern Black Hills of South Dakota and Wyoming
No abstract available.
South Dakota, Wyoming↗
Geology of the Cub Run quadrangle, Kentucky
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Geologic Quadrangle↗
Experimental drill hole logging in potash deposits of the Carlsbad district, New Mexico
Experimental logging of holes drilled through potash deposits in the Carlsbad district, southeastern New Mexico, demonstrate the considerable utility of gamma-ray, neutron, and electrical resistivity logging in the search for and identification of mineable deposits of sylvite and langbeinite. Such deposits are strongly radioactive with both gamma-ray and neutron well logging. Their radlioactivity serves to distinguish them from claystone, sandstone, and polyhalite beds and from potash deposits containing carnallite, leonite, and kainite. These latter strata and deposits are radioactive with gamma-ray logging but yield no radiation with neutron logging. Porous beds, such as sandstone strata, and solution cavities, such as those commonly formed in potash deposits by rotary drilling of evaporites, are less resistive than other materials. Low resistivity provides a means for differentiating between potash deposits and polyhalite beds on electrical resistivity logs of holes drilled with fresh-water and salt-base muds.
New Mexico↗