IRIDIUM FINGERPRINT. “The case for a catastrophic cause of mass extinction was strengthened by the discovery of a worldwide enrichment of the rare element iridium in a narrow band of geological strata formed 66 Mya.”
https://lnkd.in/e5hTuW74
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022