image: Photographs of sample material of the sills in Brazil, which caused the contact metamorphism of surrounding rocks and generation of thermogenic carbon. view more
Credit: Image credit: Thea Hatlen Heimdal.
一项研究对围绕三叠纪末期灭绝事件时期的碳循环进行了建模，这组作者说，结果发现恰逢这次灭绝的轻同位素碳的时期可能是由于与在如今的巴西的大西洋中部岩浆区的火成岩床接触的岩石的变质作用释放出的碳导致的。
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Journal
Proceedings of the National Academy of Sciences