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Abstract
This paper presents zinc isotope data from Cretaceous-Paleogene (K-Pg) boundary sedimentary rock layers. The data show heavier Zn isotope compositions and lower Zn concentrations compared to surrounding rocks, the impact site carbonate platform, and most carbonaceous chondrites. The authors argue that these isotopic signatures are consistent with Zn volatilization during the K-Pg impact event, providing a novel isotopic fingerprint for this process.
Publisher
Nature Communications
Published On
Jul 05, 2021
Authors
Ryan Mathur, Brandon Mahan, Marissa Spencer, Linda Godfrey, Neil Landman, Matthew Garb, D. Graham Pearson, Sheng-Ao Liu, Francisca E. Oboh-Ikuenobe
Tags
zinc isotopes
Cretaceous-Paleogene
impact event
volatilization
isotopic signatures
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