Original Message - From:
To:
Sent: Thursday, September 10, 2009 6:22 AM
Subject: [meteorite-list] Chondritic parent bodies: Clarification
Tracy writes:
"Oog. I agree with Bernd; classification is currently a mess."
Sorry, I forgot the inverted com
From:
To:
Sent: Thursday, September 10, 2009 6:22 AM
Subject: [meteorite-list] Chondritic parent bodies: Clarification
Tracy writes:
"Oog. I agree with Bernd; classification is currently a mess."
Sorry, I forgot the inverted commas => " ... "
Those were
Tracy writes:
"Oog. I agree with Bernd; classification is currently a mess."
Sorry, I forgot the inverted commas => " ... "
Those were Jeff's remarks / comments!
Bernd
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> To: Meteorite-list@meteoritecentral.com
> From: bernd.pa...@paulinet.de
> Date: Wed, 9 Sep 2009 19:03:24 +
> Subject: [meteorite-list] Chondritic parent bodies
>
> Hello All,
>
> I'm really glad that Jeff G. responded because I didn't know whethe
Those 1998 remarks still hold true, except for one thing... we've mostly
weeded out the classifications that used a slash for breccias. There
are still some in the MetBull database, probably, but mostly they're
fixed. Breccias are still a complete mess and nothing has changed.
Jeff
bernd.pa
Hello All,
I'm really glad that Jeff G. responded because I didn't know whether or not I
should
mention his thoughts of about 10 years ago (!) when I asked him about hyphens
and
dashes and the confusion they cause! I was inquiring about DaG 140, then
classified
as an H3.9-6.
Mon, 07 Sep 1998,
meteoritecentral.com
[mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of
bernd.pa...@paulinet.de
Sent: Wednesday, September 09, 2009 12:47 PM
To: Meteorite-list@meteoritecentral.com
Subject: [meteorite-list] Chondritic parent bodies
Hello Dave, Alan, and List,
Here is a paper that may be of intere
have a cosmic-ray age peak that matches one of the main ones for L
or LL or if it is unique. This remains to be done.
Alan
- Original Message -
From: "Dave Gheesling"
To: ;
Sent: Wednesday, September 09, 2009 11:15 AM
Subject: Re: [meteorite-list] Chondritic parent bodie
allingrocks.com
-Original Message-
From: meteorite-list-boun...@meteoritecentral.com
[mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of
bernd.pa...@paulinet.de
Sent: Wednesday, September 09, 2009 12:47 PM
To: Meteorite-list@meteoritecentral.com
Subject: [meteorite-list] Ch
] Chondritic parent bodies
Hello Dave, Alan, and List,
Here is a paper that may be of interest with regard to LL chondrite parent
bodies:
Dixon E.T., Bogard D.D. and Garrison D.H. (2002) 40Ar-39Ar Chronology
of LL Chondrites (Lunar and Planetary Science XXXIII, 1114.pdf).
They even discuss
s an amateur and is
named for my late father)
--
Richard Kowalski
Catalina Sky Survey
Lunar and Planetary Laboratory
University of Arizona
Tucson, AZ 85721
--- On Wed, 9/9/09, Alan Rubin wrote:
> From: Alan Rubin
> Subject: Re: [meteorite-list] Chondritic parent bodi
Hello Dave, Alan, and List,
Here is a paper that may be of interest with regard to LL chondrite parent
bodies:
Dixon E.T., Bogard D.D. and Garrison D.H. (2002) 40Ar-39Ar Chronology
of LL Chondrites (Lunar and Planetary Science XXXIII, 1114.pdf).
They even discuss *three* models:
1. The onion-s
t the model.
As is clear, the situation is not yet resolved.
Alan Rubin
- Original Message -
From: "Dave Gheesling"
To: "'Meteorite List'"
Sent: Tuesday, September 08, 2009 8:40 PM
Subject: [meteorite-list] Chondritic parent bodies
All,
Pete's q
they share
some of these characteristics with their colleagues.
Alan Rubin
- Original Message -
From: "Meteorite-Recon.com"
To:
Sent: Wednesday, September 09, 2009 6:21 AM
Subject: Re: [meteorite-list] Chondritic parent bodies
Hi Jeff, others,
certainly true as far as th
Behalf Of Jeff
Grossman
Sent: Wednesday, September 09, 2009 9:00 AM
To: meteorite-list@meteoritecentral.com
Subject: Re: [meteorite-list] Chondritic parent bodies
I'm not sure why you thought there was a definition that requires L5 and L6
chondrites to come from different parent asteroids...
Hi Jeff, others,
certainly true as far as the majority of L-chondritic material is concerned.
But Dave’s question is in so far justified as there are several exceptional
L-chondrites that show particular differences in their lithology compared to
other L-chondrites. If my information on this su
I'm not sure why you thought there was a definition that requires L5
and L6 chondrites to come from different parent asteroids... there
isn't. Questions like this are open to investigation. Isotopic data
show that the different petrologic types of L chondrites all
experienced a major shock ev
ssage-
From: meteorite-list-boun...@meteoritecentral.com
[mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Dave
Gheesling
Sent: Tuesday, September 08, 2009 11:40 PM
To: 'Meteorite List'
Subject: [meteorite-list] Chondritic parent bodies
All,
Pete's question re: pallasit
All,
Pete's question re: pallasites reminds me of one I've been meaning to throw
out to the group for a while. I believe that, by definition, L6's come from
one parent body and L5's, say, come from another. It's clear why breccias
might simply be an association of the two. But I've seen cross se
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