Geology topics
M. E. Hinkle
Publications and source records attributed to M. E. Hinkle.
Isopleth maps of iron, manganese, vanadium, and related elements in stream sediments of West Virginia
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Isopleth maps of pH and alkalinity in stream waters, and sodium in stream sediments of West Virginia
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Isopleth maps of uranium, thorium, cerium, lanthanum, and related elements in stream sediments of West Virginia
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Analytical results for soil samples collected in the northern San Luis Valley, Colorado
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Tabulation of N 2 , O 2 , CO 2 , and He concentrations in soil gases collected on a regular basis for 11 months from a site at Tucson, Arizona
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Production of sulfur gases and carbon dioxide by synthetic weathering of crushed drill cores from the Santa Cruz porphyry copper deposit near Casa Grande, Pinal County, Arizona
Samples of ground drill cores from the southern part of the Santa Cruz porphyry copper deposit, Casa Grande, Arizona, were oxidized in simulated weathering experiments. The samples were also separated into various mineral fractions and analyzed for contents of metals and sulfide minerals. The principal sulfide mineral present was pyrite. Gases produced in the weathering experiments were measured by gas chromatography. Carbon dioxide, oxygen, carbonyl sulfide, sulfur dioxide and carbon disulfide were found in the gases; no hydrogen sulfide, organic sulfides, or mercaptans were detected. Oxygen concentration was very important for production of the volatiles measured; in general, oxygen concentration was more important to gas production than were metallic element content, sulfide mineral content, or mineral fraction (oxide or sulfide) of the sample. The various volatile species also appeared to be interactive; some of the volatiles measured may have been formed through gas reactions.
Tabulation of CO 2 , SO 2 , and He concentrations in summit fumarole gases and wind and rainfall data at Kilauea Volcano, Hawaii, for the period June 1987 - February 1989
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Tabulation of N 2 , O 2 , CO 2 , and He concentrations in soil gases collected regularly for 13 months at a site on the summit of Kilauea Volcano
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Tabulation of N 2 , O 2 , CO 2 , and He concentrations in soil gases collected daily for 11 months from 0.3-, 0.6-, 1.2-, and 2.0-m depths
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Chemical and physical characteristics of alluvium from drill core near the Rabbit Creek gold deposit, Getchell mining district, Humboldt County, Nevada
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EFFECTS OF METEOROLOGICAL CHANGES ON CONCENTRATIONS OF HELIUM, CARBON DIOXIDE, AND OXYGEN IN SOIL GASES.
Samples were collected from a hollow probe at 0. 75-m depth and from a plastic hemisphere on the ground surface. Soil temperature, air temperature, percent humidity, and barometric pressure were also measured. Soil moisture was measured only indirectly as amount of rain or snowfall. Higher concentrations of CO//2 in both the 0. 75-m and surface samples correlated with higher soil and air temperatures, which suggests that CO//2 was produced by bacteria. Lower concentrations of helium in both the 0. 75-m and surface samples correlated with higher soil and air temperatures. Rain and snowfall appear to affect helium concentrations.
Meteorological variables and concentrations of helium, carbon dioxide, and oxygen in soil gases collected regularly at a single site for more than a year
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Gas chromatographic procedure for analysis of drill core samples for carbon dioxide and volatile sulfur species
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Mineral resource potential map of the Pleasant View Roadless Area, Los Angeles County, California
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Mineral resource potential map of the Bighorn Mountains Wilderness Study Area (CDCA-217), San Bernardino County, California
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Helium in soil gases of the Roosevelt Hot Springs Known Geothermal Resource Ares, Beaver County, Utah
Soil samples were collected in two parallel traverses across the Dome fault zone of the Roosevelt Hot Springs Known Geothermal Resource Area. The samples were sealed in air-tight aluminum cans, and the soil gas was allowed to equilibrate with the atmospheric air in the cans. Gas from the cans was analyzed by mass spectrometry. Samples collected over faults contained anomalously high concentrations of helium. Samples collected close to a geothermal well 884 m deep contained more helium than samples collected near another geothermal well 1370 m deep.