[meteorite-list] Question, Thinn sections

From: cdtucson at cox.net <cdtucson_at_meteoritecentral.com>
Date: Wed, 24 Nov 2010 12:03:09 -0500
Message-ID: <20101124120309.J1XB8.213718.imail_at_fed1rmwml46>

Dave,
To answer your question without using a back door approach to sell my thin section. Yes, thin sections are a very important part of the classification process. They give the viewer the ability to optically determine what the mineralogy is within the rock. That said, if you have a good Scanning Electron microscope this can be done with or without a thin section in some cases. The microprobe is an additional tool that tells the Scientist what he or she is looking at as well but in a much more modern and accurate way. Keep in mind Thin sections at one time were all we had until the advent of the SEM Scanning Electron Microprobe.
It should be clear what Tom Phillips offers is not and never was intended for classification purposes. He is an artistic genius of sorts and offers us a wonderful perspective of a different World if you will. Please read Tom's statement in his own words below;
 
" I have often said that you would not use my images for classification. As I am examining known material, I don't think that matters. I show things others do not. In ways most have not even tried. It does not get any easier to increase magnification and still maintain the lighting control and clarity. Then there are the high magnification reflected light shots like what was posted on NWA 5363, who else shows what the material really looks like at that magnification. I have no problem with acknowledging the lack of traditional classification usefulness but what does bother me is the dismissing of very interesting and unexplained structures my images reveal as useless just because the viewer is unfamiliar with what they are looking at."

I would like to add that sometimes Scientists do find subjects within meteorites that require such high magnifications (look at ALH84001) but if you want to see a great variety and extremely interesting images . Well, Tom Phillips is simply the best at what he does. Period.
 
Tom has been insulted and attacked now enough times that he is likely to be calling it quits. I'm not sure he even reads this list anymore? I noticed that MT no longer displays a link to Tom's web site. What is up with that MT? This is indeed a sad day for our wonderful Meteorite community and this great met-list.
I hope that this community embraces Tom and encourages him to continue in spite of some recent unwarranted attacks of him for NO good reason.

Carl

Carl or Debbie Esparza
Meteoritemax


---- Dave Myers <whitefalcons007 at yahoo.com> wrote:
> Hey Tom and list!
>
> Sorry for all the miss-spelled words!
>
> like "Top Phillips".........ment Tom,
> I find myself lately trying to type faster then my pay-grade! ......LOL
>
> you all take care!
>
> dave
>
>
>
> ----- Original Message ----
> From: Dave Myers <whitefalcons007 at yahoo.com>
> To: Meteorite-list at meteoritecentral.com
> Sent: Tue, November 23, 2010 4:21:14 PM
> Subject: [meteorite-list] Question, Thinn sections
>
> Hi List,
>
> I list I have a question about thinn section photos, Like the great photos Top
> Phillips takes.
>
> Those? who study meteorite or classify them, Can they tell just by looking at
> the photos, if
> the thenn section is from a meteorite?? Can they tell if it is a Lunar or
> Martian meteorite from the thinn section photo??? Or do they need the??thinn
> section?in hand to put through a type of spectrometor??
>
> And is that even enough to tell, or does all the other testing have to be done
> to tell if it is a meteorite, is a Lunar or martian.
>
> Thanks for any info.
>
> dave
>
>
> ? ? ?
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Received on Wed 24 Nov 2010 12:03:09 PM PST