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Carbon isotope stratigraphy of dolomites in the early Proterozoic succession, north China

Published online by Cambridge University Press:  01 November 1997

ZHONG HUA  and
MA YONGSHENG
ZHONG HUA
Affiliation:
Institute of Geology, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, P. R. China
MA YONGSHENG
Affiliation:
Research Institute of Petroleum and Development, Beijing 100083, P. R. China
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Abstract

Four hundred and eighty-four whole rock dolomite samples from early Proterozoic strata have been analysed for carbon isotopes. The carbon isotope composition is strata-specific, but abrupt variations have been observed between the Jianancun and the Daguandong as well as the Daguandong and Huaiyincun formations. The carbon isotope composition of dolomites is believed to reflect δ13C of oceanic total dissolved inorganic carbon during the early Proterozoic and reflect changing rates of organic carbon burial.

Type
Research Article
Information
Geological Magazine , Volume 134 , Issue 6 , November 1997 , pp. 763 - 770
Copyright
© 1997 Cambridge University Press

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