A Kinetic Difference Between 12C‐ and 13C‐Bound Oxygen Exchange Rates Results in Decoupled δ18O and Δ47 Values of Equilibrating DIC Solutions

A Kinetic Difference Between 12C‐ and 13C‐Bound Oxygen Exchange Rates Results in Decoupled δ18O and Δ47 Values of Equilibrating DIC Solutions

Abstract Accurate determination of paleotemperatures using carbonate δ18O and Δ47 values rely upon the assumption that the minerals in question formed close to expected isotopic equilibrium with their environment. If there is insufficient time for dissolved carbonate to equilibrate with water betwee...

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Bibliographic Details
Main Authors: Philip T. Staudigel, Peter K. Swart
Format: Article
Language:English
Published: Wiley 2018-08-01
Series:Geochemistry, Geophysics, Geosystems
Subjects:
clumped isotopes
oxygen isotopes
dissolved inorganic carbonate
kinetic isotope effects
paleotemperature
Online Access:https://doi.org/10.1029/2018GC007500

Internet

https://doi.org/10.1029/2018GC007500

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