cap carbonate couplet in southwestern Mongolia Stratigraphic and tectonic implications of a newly discovered glacial
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Stratigraphic investigations of carbon isotope anomalies and Neoproterozoic ice ages in Death Valley, California
An unusual richness of biogeochemical events is recorded in Neoproterozoic– Cambrian strata of the Death Valley region, California, United States. Eight negative carbon isotope (d13C) excursions are found in carbonate units between 1.08 Ga and the Precambrian/Cambrian boundary; four of these excursions occur in carbonates that contain textural features similar to those found globally in postgla...
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