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Electron Microprobe Lab, University of Minnesota

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Henry,
      Microprobe analysis of both the apatite- and bastnaesite-group  
phases is quite touchy.  Beam damage, degassing and elemental  
migration (potential F and Cl increase in apatite with time) are  
significant problems for these minerals.
eric


On Sep 6, 2006, at 11:52 AM, Henry Barwood wrote:

> JEOL Probe Users Listserver
>
> Moderator: Ellery Frahm, [log in to unmask],
> Electron Microprobe Lab, University of Minnesota
>
> Post a message: send your message to [log in to unmask]
>
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> On-line help and FAQ: http://probelab.geo.umn.edu/listserver.html
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>
> *
>
> Perhaps someone on the list would be interested in collaborating  
> with me on
> the analysis of some mineral specimens for publication. I have been
> conducting studies of syenite minerals from the Arkansas alkalic  
> syenites
> for over 20 years and would like to work on some of the  
> accumulation of
> unknowns that has built up. Unfortunately, here at Troy, my research
> capabilities are somewhat limited. If there is anyone who would  
> like to
> analyze some of the specimens as a co-author, please let me know.  
> Some of
> the partially completed studies that I have waiting include:
>
> Analysis of brithiolite and silician fluorapatites
> Mosandrite analysis
> Examination of the eudialites from Magnet Cove and Jones Mills
> Reexamination of the rare-earth fluorocarbonates from several  
> locations
>
> Thanks.
>
> Henry Barwood
> Associate Professor of Science, Earth Sciences
> Department of Math and Physics
> MSCX 312G
> Troy University
> Troy, Alabama
> [log in to unmask]
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>