Scientists have long used information from sediments at the bottom of the ocean to reconstruct the conditions in oceans of the past. But a study raises concerns about the common use of pyrite sulfur isotopes to reconstruct Earth’s evolving oxidation state. These signals aren’t the global fingerprint of oxygen in the atmosphere, according to new research from Washington University in St. Louis.
Title: When using pyrite to understand Earth’s ocean and atmosphere: Think local, not global
Sourced From: www.sciencedaily.com/releases/2021/02/210227083311.htm
Published Date: Sat, 27 Feb 2021 08:33:11 EST
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