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Carbonaceous, sulfidic argillites from the Proterozoic Virginia Formation in Minnesota have been investigated in terms of platinum group elements (PGE) distribution and Re-Os isotopic signatures. Kerogen from protoliths and slightly metamorphosed equivalents is characterized by Re and Os enrichment factors relative to whole rock concentrations that range from 4 to 272. Re-Os isotopic values of kerogen...
The fate and transport of terrestrial organic matter across the continental margin in the Gulf of Mexico was studied in 1992 and 1993 using chemical biomarkers. Lignin-phenols were utilized as biomarkers for terrestrial inputs and indicated that much of the terrestrial organic matter inputs were deposited on the shelf/break and slope. The lignin-phenol concentrations (normalized to carbon) in POC,...
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