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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Isopleth maps of titanium, aluminum, and associated 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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Analytical results for soil samples collected at the Roosevelt Hot Springs Known Geothermal Resource Area, Utah; 1976-1987
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Concentrations of N 2 , O 2 , CO 2 , and He in soil gases 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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Seasonal and geothermal production variations in concentrations of He and CO2 in soil gases, Roosevelt Hot Springs Known Geothermal Resource Area, Utah, U.S.A.
To increase understanding of natural variations in soil gas concentrations, CO 2 , He, O 2 and N 2 were measured in soil gases collected regularly for several months from four sites at the Roosevelt Hot Springs Known Geothermal Resource Area, Utah. Soil temperature, air temperature, per cent relative humidity, barometric pressure and amounts of rain and snowfall were also monitored to determine the effect of meteorological parameters on concentrations of the measured gases. Considerable seasonal variation existed in concentrations of CO 2 and He. The parameters that most affected the soil-gas concentrations were soil and air temperatures. Moisture from rain and snow probably affected the soil-gas concentrations also. However, annual variations in meteorological parameters did not appear to affect measurements of anomalous concentrations in samples collected within a time period of a few days. Production from some of the geothermal wells probably affected the soil-gas concentrations.
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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Concentrations of the He, CO 2 and O 2 in soil gases, and soil types at Roosevelt Hot Springs Known Geothermal Resource Area, Utah
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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.