Filters: Tags: mahogany zone (X)
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Carbon isotopic compositions of saturated hydrocarbon, aromatic hydrocarbon, NSO (resin), and asphaltene fractions of vein-forming gilsonites (Cowboy, Bonanza, Independence, Wagonhound and Harrison veins) in the NE Uinta Basin, Utah, are all similar and isotopically resemble Mahogany Zone shale extracts of the Green River Formation (δ 13C −29 to −31%). Individual molecular fossils in the gilsonites show a wider variability in compositions indicative of their paleoecological origins within the Eocene Uinta/Greater Green River paleolake system. Carbon isotopic compositions of C28 and C29 steranes (δ 13C = −25 to −32%), pristance and phytane (−33 to —34%) and perhydroβ-carotene (carotane) (δ 13C = −33.2%) suggest that...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Organic Geochemistry,
carotane,
compound-specific carbon isotope ratios,
gilsonite,
green river formation,
Reporting polygons were created to display and quantify overburden material above the Mahogany Zone, by PLSS section, in the Piceance Basin, Colorado as part of a 2009 National Oil Shale Assessment.
Categories: Data,
pre-SM502.8;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: CO,
Colorado,
Earth science,
Economic geology,
Energy resources,
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