MAGNETIC SHIELDING AND CAMBRIAN EXPLOSION. “The Phanerozoic has been the era of plate tectonics. Lithosphere motions documented by paleomagnetism suggest Earth’s dipole magnetic field may have developed at ~600 Ma. The Cambrian explosion in which most modern phyla evolved may have required its shielding against radiation.”
https://lnkd.in/d8AxQ-kU
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022