Researchers found a direct link between global dispersion of nickel-rich aerosols, ocean chemistry changes and the end-Permian mass extinction event that took place 251 million years ago.
Title: New geochemical study confirms cause of end-Permian mass extinction event
Sourced From: www.sciencedaily.com/releases/2021/06/210621094611.htm
Published Date: Mon, 21 Jun 2021 09:46:11 EDT
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https://osbge.org/index.php/2021/06/18/the-earth-has-a-pulse-a-27-5-million-year-cycle-of-geological-activity/