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Re:Dinosaur extinction
At 11:08 PM 2/28/98 -0800, Charles W. Johnson wrote:
>Dr. David King of Auburn University claims that a 300 km crater
>caused by an impactor striking Gondwanaland is associated with the
>P-Tr extinction.
Unfortunately, there is none of the axillary evidence for a major impact at
the P-Tr boundary. There is no widespread tektites, or shocked quartz.
There is no non-climatic alteration in chemical or isotopic content.
Also, what evidence does he have of the dating? This is critical.
[The URL you give does not, in any way, present any evidence. It merely
present the author's model of the extinctions as fact, with no supporting
discussion - something that is this controversial should at least be
presented as undecided, not as fact].
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May the peace of God be with you. sarima@ix.netcom.com
sfriesen@netlock.com