All, In terms of the Permian and Cretaceous extinctions the theory I find most compelling in both cases is asteroid strikes whose resulting strike energies were also focused at the antipodes. The energy of the Cretaceous strike off the Yucatan was focused in India where it ruptured the crust resulting in the Deccan Traps. The even larger Permian asteroid strike occurred in the South Pacific and its energy was focused in Siberia where it ruptured the crust there resulting in the Siberian Traps. The time frames are roughly consistent though in both cases the traps persisted long after the asteroid strikes which initiated them.
So in both cases you would have double whammies whose persistent effects lasted for much longer than the effects of the original asteroid impacts which initiated them. Edgar On Saturday, March 15, 2014 1:44:49 AM UTC-4, cdemorsella wrote: > > > > > > *From:* everyth...@googlegroups.com <javascript:> [mailto: > everyth...@googlegroups.com <javascript:>] *On Behalf Of *John Clark > *Sent:* Thursday, March 13, 2014 8:29 AM > *To:* everyth...@googlegroups.com <javascript:> > *Subject:* Re: The situation at Fukushima appears to be deteriorating > > > > > > On Wed, Mar 12, 2014 at 11:40 AM, Chris de Morsella > <cdemo...@yahoo.com<javascript:>> > wrote: > > > > >> 66 million years ago 2/3 of all species, not individual animals but > entire species, became extinct quite literally ove > > ... -- 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 http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
