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Re: 129I/129Xe

To: meteorite-list@meteoritecentral.com
Subject: Re: 129I/129Xe
From: David Weir <dweir@mail.mco.bellsouth.net>
Date: Tue, 14 Oct 1997 20:06:39 -0400
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Walter,
Maybe I can help a bit more. Xenon 129 is the daughter of the extinct
Iodine 129. It is the Iodine 129 that has the short halflife of ~ 16
m.y. The ratio of Xenon 129 to Xenon 128 (formed thru the sequence: I
127 + neutron = I 128 - beta particle = Xe 128) is compared to the
primordial ratio and used to determine the time of meteorite formation
based on a standard value (Burjole). I hope this helps because it gets
deeper.
David

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Re: 129I/129Xe

From: WBranchsb@aol.com

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