[meteorite-list] Terresterial VS. way out there testing

From: Rhett Bourland <rbourlan_at_meteoritecentral.com>
Date: Thu Apr 22 09:55:51 2004
Message-ID: <IOEBKAHMGFBDJMOFGDFNMEBIDFAA.rbourlan_at_evansville.net>

If anyone has a copy of this paper containing the differences between H, L,
and LL chondrites please email me with it as I would be VERY interested in
reading it. Then again, when I anybody it almost always ends up being Bernd
"anybody" Pauli.
Thanks,
Rhett Bourland
www.asteroidmodels.com
www.asteroidmodels.com/personal
www.meteoritecollectors.org

-----Original Message-----
From: meteorite-list-admin_at_meteoritecentral.com
[mailto:meteorite-list-admin_at_meteoritecentral.com]On Behalf Of
Starbits_at_aol.com
Sent: Friday, January 25, 2002 3:44 PM
To: dfreeman_at_fascination.com; meteorite-list@meteoritecentral.com
Subject: Re: [meteorite-list] Terresterial VS. way out there testing


<How far from being a qualified meteorite testing lab is a good quality
soils, water, and air testing lab. Lab doesn't have experience with
meteorites. Would this be the limiting factor, or is there much more to the
picture? Lab is fully accredited and has been around quite a while (20
years). Any opinions are welcome.>

Hello Dave and list

   A year or so ago I found a web site that did electron microprobe analyses
on mineral specimens for mining companies. I considered contacting them,
but before I did I talked with Dr. David Kring, LPL, about what it would
take to be an accepted classifier of meteorites.

   He found it very doubtful that the company I found would be qualified
even if they were willing. Basically they would have to do classifications
for a while and their data would have to be checked to ensure it was
correctly done and interpreted. So you would need an accredited lab that
would verify their classifications and vouch for their ability to get them
correct. I believe Marvin Kilgore did this so he could classify material.
   As I recall Dr Kring's problem with the company I mentioned to him was
that the high through put of analyses and the lower accuracy required for
mining data would make it doubtful that they would able to meet the
requirements of meteorite classification.
   The other problem is knowledge of meteorites and their classifications.
According to Dr Kring there was a paper published which gave the differences
in the H, L, and LL ordinary chondrites. I think it was by Rubin but I am
not sure. Maybe Bernd can tell us. However there is no similar source of
comparison for anything else. So there is no readily available logic tree
that says if it meets a, b, j, and x it is a winonite. That makes it
difficult for someone without a meteorite background to just jump into
classification. A logic tree sounds like a good publishable paper to me if
anybody is interested.
   In short, having the right equipment isn't the whole solution and may
actually be the easiest part to accomplish.

Eric Olson
http://www.star-bits.com

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Received on Fri 25 Jan 2002 05:00:37 PM PST