1. C-isotopic stratification in a Neoproterozoic postglacial ocean
- Author
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Shen, Yanan, Zhang, Tonggang, and Chu, Xuelei
- Subjects
- *
PRECAMBRIAN stratigraphic geology , *OCEAN , *GLACIAL climates - Abstract
Abstract: We report C-isotopic data from the cap carbonate overlying the terminal Proterozoic Nantuo diamictites in south China. The C-isotopic measurements reveal a large C-isotopic gradient of ∼3‰ along paleoenvironmental transect from shelf to deep basinal sedimentary facies. The C-isotopic stratification may attribute to the effect of biological pumping in a postglacial ocean. Our results confirm that the sea-level rise was rapid and that atmospheric CO2 was significantly high immediately following deglaciation. [Copyright &y& Elsevier]
- Published
- 2005
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