Helium, mercury, sulfur compounds, and carbon dioxide in soil gases of the Puhimau Thermal area, Hawaii Volcanoes National Park, Hawaii
Explore the source record for details and available documents.
Open-File Report↗
Geology topics
Margaret Hinkle
Publications and source records attributed to Margaret Hinkle.
CS 2 and COS in soil gases of the Roosevelt Hot Springs Known Geothermal Resource Area, Beaver County, Utah
Soil-gas samples were collected in two parallel traverses across the Dome fault zone of the Roosevelt Hot Springs Known Geothermal Resource Area. Gas chromatographic analyses of the samples showed anomalous concentrations of CS 3 and COS east of the Dome fault; higher concentrations of CS 2 and COS also occurred over an area in which the hydrothermal system is close to the surface. Measurement of these gases may be useful in exploration for new geothermal sources.
Utah↗
Map showing distribution pattern of strontium from samples of the nonmagnetic fraction of heavy-mineral concentrates, northern Sonora, Mexico
Explore the source record for details and available documents.
Open-File Report↗
Map showing distribution pattern of barium from samples of the nonmagnetic fraction of heavy-mineral concentrates, northern Sonora, Mexico
Explore the source record for details and available documents.
Open-File Report↗
Reconnaissance for mercury over geothermal areas of the Imperial Valley, California
No abstract available.
California↗
Field determination of nanogram quantities of mercury in soils and rocks
A method for determining nanogram quantities of mercury in geological materials is based on the catalytic effect of mercury on the reaction of ferrocyanide with nitrosobenzene to produce a violet-covered compound whose intensity if proportional to the mercury present. The mercury is released by heating a sample of soil or crushed rock to about 650°C. As little as 30 nanograms of mercury (30 parts per billion with 1 gram sample) can be detected. The reliability of the method is adequate to permit its use in geochemical surveys that utilize mercury as a pathfinder element.
Open-File Report↗