Hello Sterling, E.P. and List....
ddly, (and I was shocked to see) the picture in Dodd's Meteorites, Cambridge
Press 1981, page 32, figure 3.1d), shows a type 4 chondrule in Coolidge CV4
which is dominated by the calc-aluminous phase....I don't recall ever seeing
a chondrule in TS with such defined anorthite....or any for that matter;
(it almost looks like euctitic chondritic texture...)
Richard Montgomery
----- Original Message -----
From: "Sterling K. Webb" <sterling_k_w...@sbcglobal.net>
To: <meteorite-list@meteoritecentral.com>
Cc: "E.P. Grondine" <epgrond...@yahoo.com>
Sent: Saturday, August 06, 2011 10:16 PM
Subject: Re: [meteorite-list] CAI inclusions
E. P.,
Simple question - what classes of
meteorites have CAI inclusions?
Simple answer: any kind of chondrite.
However, most common in carbonaceous
chondrites, particularly CV's. They contain
more refractory elements than the "ordinary"
condrules they are found with. They were
formed at higher temperatures and many
show signs of repeated meltings. They are
older than the next most early solar system
materials, the chondrules, by 2,000,000
years or so. Two different dating methods
give ages of 4567 my and 4571 my.for CAI's.
Sterling K. Webb
--------------------------------------------------------
08-07-11, 12:16 AM CDT
----- Original Message -----
From: "E.P. Grondine" <epgrond...@yahoo.com>
To: <meteorite-list@meteoritecentral.com>
Sent: Saturday, August 06, 2011 7:12 PM
Subject: [meteorite-list] CAI inclusions
Hi all -
Simple question - what classes of meteorites have CAI inclusions?
E.P.
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