Search Results - "Leventhal, Joel S"

Organic matter and thermochemical sulfate reduction in the Viburnum Trend, Southeast Missouri by Leventhal, Joel S

“…The role of organic matter in Mississippi Valley-type Pb-Zn deposits has been studied by systematically sampling and characterizing various types of organic…”
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Organic matter and containment of uranium and fissiogenic isotopes at the Oklo natural reactors by Nagy, Bartholomew, Gauthier-Lafaye, F, Holliger, P, Davis, D. W, Mossman, David J, Leventhal, Joel S, Rigali, Mark J, Parnell, John

“…Results from natural fission reactors at Oklo in Gabon imply that the use of organic, hydrophobic solids, such as graphitic bitumen, as a means of immobilizing…”
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Carbon-sulfur plots to show diagenetic and epigenetic sulfidation in sediments by Leventhal, Joel S.

“…Organic carbon vs. sulfide sulfur plots are now being used regularly by many geochemists to help understand recent and ancient depositional environments and…”
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Unusual organic matter associated with uranium from the Claude Deposit, Cluff Lake, Canada by Leventhal, Joel S, Grauch, R. I, Threlkeld, C. N, Lichte, F. E, Harper, C. T

“…Blebs and pods of organic matter (0.2-7.0 cm in diam) are associated with uranium mineralization in all the major deposits (D, N-R-F, Claude, OP, and…”
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Origins of metals and organic matter in the Mecca Quarry Shale Member and stratigraphically equivalent beds across the Midwest by Coveney, Jr, Leventhal, Joel S, Glascock, Michael D, Hatch, Joseph R

“…Samples of the Middle Pennsylvanian-age Mecca Quarry Shale Member and stratigraphically equivalent beds from Indiana, Illinois, Missouri, and Kansas have been…”
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Solid insoluble bitumen in the Magmont West orebody, Southeast Missouri by Marikos, Mark A, Laudon, Robert C, Leventhal, Joel S

“…Solid bitumen (here used to refer to an altered, insoluble crude oil) occurs as black blebs and fracture fillings in the Magmont West orebody of the Viburnum…”
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Carbon-13/Carbon-12 Isotope Fractionation of Organic Matter Associated with Uranium Ores Induced by Alpha Irradiation by Leventhal, Joel S., Threlkeld, Charles N.

“…Analyses of stable carbon isotopes from two sample suites from sandstone uranium (tabular) ores show interesting variations. Organic carbon associated with…”
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