Redox control on nitrogen isotope fractionation during planetary core formation [Earth, Atmospheric, and Planetary Sciences]

The present-day nitrogen isotopic compositions of Earth’s surficial (15N-enriched) and deep reservoirs (15N-depleted) differ significantly. This distribution can neither be explained by modern mantle degassing nor recycling via subduction zones. As the effect of planetary differentiation on the behavior of N isotopes is poorly understood, we experimentally determined N-isotopic fractionations...

Source: Proceedings of the National Academy of Sciences - July 15, 2019 Category: Science Authors: Celia Dalou, Evelyn Furi, Cecile Deligny, Laurette Piani, Marie–Camille Caumon, Mickael Laumonier, Julien Boulliung, Mattias Eden Tags: PNAS Plus Source Type: research