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Project Progress

Efforts have been made to reconstruct the detailed history of climate, atmospheric chemistry (pO2 and pCO2), ocean chemistry, and the global cycles of carbon and sulfur during the 800-500 Ma period through geochemical analyses of Neoproterozoic sequences in Namibia and Australia, and also through modeling. We have generated a continuous record of sulfur isotopic composition of marine sulfate for much of the late Neoproterozoic from Namibian strata, and have produced geochemical cycle models that successfully produce stable isotope variations observed in the records.