Hi Zack,

Do you have Torsten Vennemann & Ruth Blakes email, I would like to request
some of their stds.  We have written a paper about this problem, but I guess
we should run these new stds for the sake of completeness.

Hope all is well,
Bill

At 10:41 AM 5/31/2004, you wrote:
>For analyzing hydrous minerals for dD values, see Sharp et al. "A rapid
>method for determination of hydrogen and oxygen isotope ratios from water
>and solid hydrous substances". Chemical Geology 178, 197-210, 2001.  The
>technique is described in detail.  It works very well for phlogopites.
>
>Apatites need to be converted to silver phosphate.  See Vennemann et al.
>(2002) Oxygen isotope analysis of phosphates; a comparison of techniques
>for analysis of Ag3PO4. Chemical Geology 185, 321-336. for the full scoop.
>
>Zach
>
>
>At 03:27 AM 5/31/2004, you wrote:
>>Can anybody help me in educating how to analyze 18O and D isotopes on
>>phlogopites and 18O on apatite samples. I have Thermofinnigan Delta Xp
>>with Flash, TC/EA, Gas Bench and GC-C/TC with me. Thanks in advance.

Dr. William J. Showers
Dept of Marine, Earth & Atm Sciences
Box 8208
North Carolina State University
Raleigh NC 27695

(919) 515 - 7143 Office
(919) 515 - 7802 Fax
(919) 515 - 3689 Lab
(919) 515 - 7911 Field Lab
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