[meteorite-list] NWA 6704 - Oxygen Isotope Chart

[Greg Hupé]

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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Greg Hupé
The Hupé Collection
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