“Extraterrestrial” –Solar System Dynamics Triggered Earth’s Plate Tectonics

Asteroid Impact

 

“It is remarkable to think that our oldest animal ancestors—and therefore all of us—may owe our existence, in part, to an unusual episode of plate tectonics over half a billion years ago” said Tim Lenton, professor of Climate Change and Earth System Science with the University of Exeter’s Global Systems Institute in June, 2019 about the most dramatic moment in the history of evolution when the spectacular supernova of biology, the Cambrian Explosion, was detonated and the world of animal life was born with the rise in oxygen levels during the formation of the supercontinent Gondwana and a major increase in continental arc volcanism—chains of volcanoes often thousands of miles long formed where continental and oceanic tectonic plates collided.

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The Cambrian Explosion –“Supernova of Biology Detonated by Plate Tectonics”

 

Around 540 million years ago, the strange Ediacaran world was destroyed—dramatically swept aside in the most important moment in the history of evolution when the spectacular supernova of biology, the Cambrian Explosion, was detonated and the world of animal life was born.

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