Re: [meteorite-list] Meteorites with amino acids

2014-11-20 Thread Jim Wooddell via Meteorite-list

Hi Rob and all!

Nice list, Rob!  Thanks!

I've had the opportunity to work with several Jblit Winselwan fragments 
while making thin sections of them.  It was obvious someone washed or 
rinsed a couple of the samples I had.  In what, I do not know.
Additionally, once the pieces came apart it was clear with both the none 
washed samples and the washed samples, terrestrial contamination 
occurred at some point in it's life on earth.  All of them I have had 
reminded me of goat turds as to who they were formed and stuck 
togetheror a part of one that had already came apart.   Very 
delicate material, but could be taken apart.


So, I wonder what affect this would have on any amino acid study where 
strict handling protocol of the sample did not occur and what affect 
this would have on a study where terrestrial contamination is obvious.
Would scientist still be able to isolate particles for studying amino 
acids and not be too concerned about contamination???


Have a great day!

Jim Wooddell


On 11/18/2014 8:07 PM, Matson, Rob D. via Meteorite-list wrote:

Amino acids have been found in the following meteorites of which I'm aware:

Murray (CM2)
Murchison (CM2)
Tagish Lake (C2 ungrouped)
Almahata Sitta (anomalous ureilite)
Sutter's Mill (CM2)
Allan Hills 77306 (CM2)
Allan Hills 83100 (CM2)
Asuka 88120 (CM2)
Asuka 881334 (CM2)
Lewis Cliffs 90500 (CM2)
Lone Wolf Nunataks 94102 (CM2)
Yamato 74662 (CM2)
Yamato 791198 (CM2) - most amino-acid-rich meteorite known
Yamato 793321 (CM2)
Belgica 7904 (CM2)
Orgueil (CI1)
Ivuna (CI1)

I am sure there are others that I have missed.  --Rob
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http://pages.suddenlink.net/chondrule/

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Re: [meteorite-list] Meteorites with amino acids

2014-11-19 Thread Katsu OHTSUKA via Meteorite-list

and the Stardust (81P/Wild 2) Sample
http://adsabs.harvard.edu/abs/2009M%26PS...44.1323E.

Katsu
-Original Message- 
From: Matson, Rob D. via Meteorite-list 
Sent: Wednesday, November 19, 2014 12:07 PM 
To: meteorite-list@meteoritecentral.com 
Subject: [meteorite-list] Meteorites with amino acids 


Amino acids have been found in the following meteorites of which I'm aware:

Murray (CM2)
Murchison (CM2)
Tagish Lake (C2 ungrouped)
Almahata Sitta (anomalous ureilite)
Sutter's Mill (CM2)
Allan Hills 77306 (CM2)
Allan Hills 83100 (CM2)
Asuka 88120 (CM2)
Asuka 881334 (CM2)
Lewis Cliffs 90500 (CM2)
Lone Wolf Nunataks 94102 (CM2)
Yamato 74662 (CM2)
Yamato 791198 (CM2) - most amino-acid-rich meteorite known
Yamato 793321 (CM2)
Belgica 7904 (CM2)
Orgueil (CI1)
Ivuna (CI1)

I am sure there are others that I have missed.  --Rob
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Re: [meteorite-list] Meteorites with amino acids

2014-11-19 Thread drtanuki via Meteorite-list
Katsu, Rob, Tim and List,

Table 1 A summary of total amino acid and nucleobase data for five 
of the eight carbonaceous chondrite groups. Amino acid and nucleobase 
analyses of CI, CH, CB, and CK meteorites have not yet been reported

Amino acids have also been studied in CR2s, CR3s, CO3s and CV3s CIs and other 
types of meteorites.

Meteorite classification 
Example - Meteorite
Predominant alteration type 
Amino acids ppm
Nucleobases ppb

CR2 EET 92042 Aqueous 300ppm less than 25ppb

CO3 ALHA 77307 Thermal =1ppm no data 
CV3 EET 96026 Thermal =1ppm no data---

List of amino acids given in paper.

References cited show many more meteorites and types studied and their names.

http://science.gsfc.nasa.gov/691/analytical/PDF/BurtonReview2012.pdf

Dirk Ross...Tokyo


- Original Message -
From: Katsu OHTSUKA via Meteorite-list meteorite-list@meteoritecentral.com
To: meteorite-list@meteoritecentral.com
Cc: 
Sent: Wednesday, November 19, 2014 11:17 PM
Subject: Re: [meteorite-list] Meteorites with amino acids

and the Stardust (81P/Wild 2) Sample
http://adsabs.harvard.edu/abs/2009M%26PS...44.1323E.

Katsu
-Original Message- 
From: Matson, Rob D. via Meteorite-list 
Sent: Wednesday, November 19, 2014 12:07 PM 
To: meteorite-list@meteoritecentral.com 
Subject: [meteorite-list] Meteorites with amino acids 

Amino acids have been found in the following meteorites of which I'm aware:

Murray (CM2)
Murchison (CM2)
Tagish Lake (C2 ungrouped)
Almahata Sitta (anomalous ureilite)
Sutter's Mill (CM2)
Allan Hills 77306 (CM2)
Allan Hills 83100 (CM2)
Asuka 88120 (CM2)
Asuka 881334 (CM2)
Lewis Cliffs 90500 (CM2)
Lone Wolf Nunataks 94102 (CM2)
Yamato 74662 (CM2)
Yamato 791198 (CM2) - most amino-acid-rich meteorite known
Yamato 793321 (CM2)
Belgica 7904 (CM2)
Orgueil (CI1)
Ivuna (CI1)

I am sure there are others that I have missed.  --Rob
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[meteorite-list] Meteorites with amino acids

2014-11-18 Thread Matson, Rob D. via Meteorite-list
Amino acids have been found in the following meteorites of which I'm aware:

Murray (CM2)
Murchison (CM2)
Tagish Lake (C2 ungrouped)
Almahata Sitta (anomalous ureilite)
Sutter's Mill (CM2)
Allan Hills 77306 (CM2)
Allan Hills 83100 (CM2)
Asuka 88120 (CM2)
Asuka 881334 (CM2)
Lewis Cliffs 90500 (CM2)
Lone Wolf Nunataks 94102 (CM2)
Yamato 74662 (CM2)
Yamato 791198 (CM2) - most amino-acid-rich meteorite known
Yamato 793321 (CM2)
Belgica 7904 (CM2)
Orgueil (CI1)
Ivuna (CI1)

I am sure there are others that I have missed.  --Rob
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[meteorite-list] Meteorites with amino acids?

2014-11-17 Thread Tim Heitz via Meteorite-list

Hello,

Does the Jbilet Winselwan (CM2) Meteorite contain amino acids like that 
of Murchison (CM2)?


It's been awhile since I have studied meteorites, is Murchison still the 
only meteorite to contain  amino acids?


Last time I checked 93 amino acids had been found in the Murchison 
meteorite.


Thanks,
Tim Heitz
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Re: [meteorite-list] Meteorites with amino acids?

2014-11-17 Thread Graham Ensor via Meteorite-list
Hi Tim...not sure about Jbilet Winselwan...but they are found in
others...eg Almahatta Sitta

http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1042.pdf

Graham

On Mon, Nov 17, 2014 at 9:41 AM, Tim Heitz via Meteorite-list
meteorite-list@meteoritecentral.com wrote:
 Hello,

 Does the Jbilet Winselwan (CM2) Meteorite contain amino acids like that of
 Murchison (CM2)?

 It's been awhile since I have studied meteorites, is Murchison still the
 only meteorite to contain  amino acids?

 Last time I checked 93 amino acids had been found in the Murchison
 meteorite.

 Thanks,
 Tim Heitz
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