[meteorite-list] CAI inclusions

From: Bernd V. Pauli <bernd.pauli_at_meteoritecentral.com>
Date: Sun, 7 Aug 2011 16:03:19 +0000
Message-ID: <DIIE.0000006700002A24_at_10.0.100.101>

Hi E.P. and List,

"Simple question - what classes of meteorites have CAI inclusions?"


Hutchison R. (2004) Meteorites: A Petrologic, Chemical,
and Isotopic Synthesis (CPS Series, p.75, excerpts):

"All chondrite groups except CI contain subspherical to highly
irregular objects surrounded by conspicuous layered rims ..."

"CAIs most commonly occur in the carbonaceous chondrites, once again,
CIs excepted. Outside carbonaceous chondrites CAIs are seldom identifiable,
but the enstatite and ordinary chondrite classes and R group do contain
rare, physically identifiable CAIs, which thus appear to be ubiquitous
among chondrites as a small, but important, component."


McSween H.Y. (1999) Meteorites and Their Parent Planets, 2nd Edition
(Cambridge University Press, excerpt from page 56):

"These are especially abundant in certain groups of carbonaceous
chondrites, but they occur rarely in other chondrite clans as well."


Best wishes,

Bernd
Received on Sun 07 Aug 2011 12:03:19 PM PDT