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Re: Carbonates and CI Chondrites


 martinh@isu.edu (Martin Horejsi) wrote on 1998-February-9:
>Hello Jim,
>
>Thanks for your reply about Orgueil and the sun. Also, thank you (your
>wife, actually) for providing a translation of the Chinese article on the
>Juancheng fall. When I read it, I once again thought of the power of this
>global communication medium we are all playing with.

I'll tell her - she spent a lot of time on that.


>it makes little or no difference, but from an artistic angle, there is
>little image perspective since the meteorite is in a position with no up,
>down, left, or right, and the shadowing surrounds the specimen since the
>light source moves as the image is being made.

Several people have pointed that out to me, it was something that
didn't occur to me. I suppose I'll have to rescan them upside down
and then invert the image. I could just flip the images as they are
now, but I wanted the orientation to be the way I laid them out.

On the topic of chondrules, I found a great reference on these topics
that is up-to-date:

   http://cass.jsc.nasa.gov/meetings/chondrite/pdf/program.pdf >
   Workshop on Parent-Body and Nebular Modification of Chondritic
   Materials


Also that site has a search tool to go through a whole mass of meeting
abstracts:

  http://cass.jsc.nasa.gov/htbin/ols/mtgkeywform?all&All+Meetings& >

   (Yes that URL ends in '&')

Here are a few sample hits using keywords 'primitive chondrite CAI' 
keywords. The search seems to stop at 200 hits. These are abstracts,
but some are quite detailed. I wonder where the original documents
on these meetings can be gotten?

Chondrule Formation 
Spectral Comparison Between the S-Asteroids and Primitive Achondrites 
A SIMS Study of Some Allende Chondrules: Support for the New Chondrule Model 
Chondrule Rims in Murchison, Cathodoluminescence Evidence for In Situ
   Formation by Aqueous Alteration 
Origin of Chondrites in Kuiper's Belt?
A Chondrule-forming Scenario Compatible with Chondrite Metamorphism
CAIs in CO3 Meteorites: Parent Body or Nebular Alteration? 


-- 
          Jim Hurley
       Arachnaut's Lair
http://www.arachnaut.org/ >
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