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Re: Extinction scenarios




Jerry D. Harris wrote:

This is a subject worth more attention.  Would you elaborate please?
Best wishes,
Jim

> -------------------- Begin Original Message --------------------
>
> Message text written by INTERNET:TomHopp@aol.com
>
> " Excellent point. In addition to horrendous seismic quaking at the
> antipode,"
>
> -------------------- End Original Message --------------------
>
>         I don't think there would be a tremendous amount of seismic
> activity at the antipode -- S-waves can't travel through liquid, such as
> the outer core, and thus aren't transmitted _at_all_, and P-waves are
> refracted through the differing densities of various layers in the mantle
> and outer and inner cores, leaving few to propigate directly to the
> antipode.
>
>                 _,_
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>            /\  '                        ^__/>/\____\--------
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>
>                      Jerry D. Harris
>                  Fossil Preparation Lab
>           New Mexico Museum of Natural History
>                    1801 Mountain Rd NW
>                Albuquerque  NM  87104-1375
>                  Phone:  (505) 899-2809
>                   Fax:  (505) 841-2866
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