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Re: Meteorite origins



In a message dated 05/04/99 22:29:17 GMT, you write:

<< Well, if it contains trapped bubbles of Martian atmosphere, there is very
 little one can do to disprove it. Also, if it is near identical to the
 Apollo samples, there is another clue. >>

Most of the Martian meteorites also have relatively young crystallisation 
ages, and if  memory serves, as young as 200 million years. At that age, 
these didn't come from the asteroid belt.
Take away the asteroid belt as a possible source and alternatives quickly 
become limited. A planet with an atmosphere thin enough to allow a rock to be 
ejected at high speed without burning up would seem a good candidate though.

Rob.
http://hometown.aol.com/fernlea4/forsale.html
Fernlea Meteorites,
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Scotland. UK.
Tel: +44-(0)1592-751563
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