[meteorite-list] NWA 6704 - Oxygen Isotope Chart

From: Greg Hupé <gmhupe_at_meteoritecentral.com>
Date: Wed, 1 Jun 2011 13:09:45 -0400
Message-ID: <F904508827954E8CB5AF24BE97F4D2A9_at_Gregor>

Dear List Members,

With my announcement of NWA 6704 yesterday, I received a couple of emails
from people who commented how it looks like a member of the HED group;
diogenite or olivine-diogenite. The lead specialist in classifying NWA 6704,
Tony Irving, put together this oxygen isotope chart with accompanying
description to help people visualize the differences. I hope this is
helpful!

http://www.lunarrock.com/nwa6704/nwa6704chart1.jpg
"Oxygen isotopic compositions of various achondrites relative to the
terrestrial fractionation line (TFL).
NWA 6704 plots well below the TFL within the broad field for members of the
acapulcoite-lodranite clan,
and far from the fields for eucrites, diogenites and mesosiderites."

Best Regards,
Greg

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Received on Wed 01 Jun 2011 01:09:45 PM PDT