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|a Authigenic Carbonate and the History of the Global Carbon Cycle |h [electronic resource]. |
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|a [S.l.] : |b American Association for the Advancement of Science, |c 2013. |
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|a Science Magazine Volume 339. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a We present a framework for interpreting the carbon isotopic composition of sedimentary
rocks, which in turn requires a fundamental reinterpretation of the carbon cycle and redox
budgets over Earth’s history. We propose that authigenic carbonate, produced in sediment
pore fluids during early diagenesis, has played a major role in the carbon cycle in the past.
This sink constitutes a minor component of the carbon isotope mass balance under the modern,
high levels of atmospheric oxygen but was much larger in times of low atmospheric O2 or
widespread marine anoxia. Waxing and waning of a global authigenic carbonate sink helps to
explain extreme carbon isotope variations in the Proterozoic, Paleozoic, and Triassic. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a isotopic form of elements. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15050319/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/05/03/19/00001/FI15050319_thm.jpg |
