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Showing 1 to 3 of 3 for “"Cap carbonates"”.
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Studying Redox Conditions of Devonian and Neoproterozoic Oceans Using I/ca Proxy From Bulk Carbonate Rocks
… settings. Chapter 3 studies Late Neoproterozoic cap carbonates formed following the Cryogenian glaciations, from basal Doushantuo Formation, one of the most extensively studied Ediacaran units in South China. Among the four sections from a shallow-to-deep water transect, the slope section has the …
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Geological constraints on Neoproterozoic glacial episodes
… that are compatible with an Ediacaran age; 3) cap carbonate stratigraphy is not applicable to 63% of Neoproterozoic tillites; 4) the presence of Neoproterozoic cap carbonates is not conclusive evidence of a Hard Snowball Earth; and 5) a single purported tillite in Great Britain has strong …
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Chemostratigraphy of the Early Paleoproterozoic carbonate successions (Kaapvaal and Wyoming cratons)
… In common with the Neoproterozoic record, carbonates cap the glacials. However, the relationship between biogeochemical cycling of carbon and ice ages has not been fully appreciated. This research involved the sedimentology and isotope stratigraphy of carbonates and shales in …