Carbon Isotopic Data Validate the New Model of Carbon TurnoverIvlev AA*
Russian State Agrarian University of K.A. Timiryazev, Moscow, Russia
- *Corresponding Author:
- Ivlev AA
Russian State Agrarian University of KA
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Received date: October 24, 2016; Accepted date: December 19, 2016; Published date: December 26, 2016
Citation: Ivlev AA (2016) Carbon Isotopic Data Validate the New Model of Carbon Turnover. J Marine Sci Res Dev 6:218. doi: 10.4172/2155-9910.1000218
Copyright: © 2016 Ivlev AA. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
A new global redox carbon cycle model is suggested. It claims that lithospheric plates’ movement exerts an impact on photosynthesis development. The impact is realized via periodic injections of CO2 coming from zones of plates’ collisions. Carbon dioxide is derived from oxidation of sedimentary organic carbon in thermochemical sulfate reduction proceeding in subduction zones. Carbon turnover is considered as a conversion of the element from the oxidized state (CO2 + HCO3- + CO3-) into the reduced state produced in photosynthesis and in the following transformation. The isotopic data confirm the validity of the model. They explain the observed correlation of carbon isotope composition of sedimentary organic matter with geologic age. It was found that the difference between carbon isotope composition of organic matter and that of coeval carbonates is an analog of the carbon 13C isotope discrimination in photosynthesis used for modern plants. The periodicity of isotopic characteristics correlates with periodicity of climatic changes, mass extinctions, with the irregularity of stratigraphic distribution of rocks rich in organic matter and other periodic events in biosphere.