If the impactor was big enough the shockwave it generated could have hammered right through earth's core focusing its energy on the oppisite side of the planet e.g. Siberia triggering the subsequent unimaginably massive episode of volcanism. (possibly a latent rising bubble of hot mantle material coincidentally was already present beneath the seismic focal point on the opposite side of the impact, providing the necessary heat engine that kept that hellish event going for as long as it did.)In any case... some compelling evidence of earth's own deep cosmic connection.. it's history as well as yet one more big impactor site showing that the solar neighborhood can become a collision zone... And may do so again. The stability of even the planetary orbits is Only meta stable, in the far future even something as seemingly eternal as the orbits of planets can become perturbed, by harmonic forces for example.-Chris On Tue, Jan 9, 2018 at 7:27 PM, agrayson2...@gmail.com<agrayson2...@gmail.com> wrote:
On Tuesday, January 9, 2018 at 5:46:16 PM UTC-7, John Clark wrote: On Tue, Jan 9, 2018 at 2:16 PM, <agrays...@gmail.com> wrote: > Most likely an asteroid that caused the Permian extinction event. AG No, the eruption of the volcanic Siberian Traps most likely caused the Permian extinction 252 million years ago; it was the largest extinction event in Earth's history. An asteroid most likely caused the Cretaceous extinction 66 million years ago. John K Clark At that time Antarctica might have been relatively close to Siberia, and a huge asteroid impact might have triggered the SIberian eruption. AG -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
