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Re: Chicxulub's Antipode (Re: cause of death at KT)
On Sat, 02 Sep 2006 22:12:53 -0700 (PDT) don ohmes <email@example.com>
> At risk of getting on thin crust--
> 1). 65 my is old for deep ocean crust. Might be hard to find some
> that was in the antipodal location at the time. Stuff can move fast,
> like 10cm/a. That is 6500km since KT, IMMC. Might, in fact, be all
Regarding the sea floor around India, you might be right. [I am a
neophyte when it comes to southern Asian tectonics]. But there are
numerous places in today's Pacific Ocean that still contain 65 my old
One example is reported in:
Kyte F.T., J.A. Bostwick, and L. Zhou. 1994. The KT boundary of the
Pacific plate, pp. 64-65, in New developments regarding the KT event and
other catastrophes in Earth history, (Abstract). Lunar Planet. Inst.
Cont. No. 825.
Interesting sections, these Pacific DSDP K-T cores. One core even
contained a stoney meteorite fragment within the K-T boundary bed! The
odds of such an occurrence are astronomical (pardon the pun).