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Re: Extinction
Those of us that are inclined to believe that an impact was largely
responsable for what happend at the K/T boundary also have to come up
with some good models for exactly what a large impact would do to the
world wide ecosystem to cause a mass extinction. Would it set off a
chain reaction spreading the effects over thousands or hundreds of
thousands of years? Or would it be like a giant hammer blow that just
wiped out everything at once? Maybe some combination. Do we even know
how far a planetary ecosystem needs to be tipped in order for it to
crash? Lots of questions, but only rudimentary answers so far.
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| Michael J. Styzen Phone: (504) 588-4308 |
| Shell Offshore Inc. Room: OSS-2920
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