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Re: Bernd: Meteor May Not Have Destroyed Dinosaurs Afterall?
Not true. Volcanic ash can remain in the atmosphere for several years.
For instance ash from the Mt. Pinatubo eruption of 1991, remained
suspended in the upper atmoshere for 3 years after the eruption.
Matt
James Oxford wrote:
>
> To suggest that impact debris could remain suspended in the atmosphere for
> many years is absurd. Rocket experiments by several nations during the 1970s
> showed that even very small particles - about the size of cigarette smoke -
> take only about 8 weeks to descend from the ionosphere to the troposphere
> before raining out of the system.
>
> Too many people with big ideas and little knowledge, me thinks.
>
> James Oxford
>
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