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Fri, 12 Apr 1996 10:40:41 +0200 (MET DST) |
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Dear all,
My name is Graham Shields and I am a doctoral student at the ETH Zurich
studying isotope stratigraphy around the Precambrian/Cambrian boundary in
China and Mongolia.
I would like to ask if anyone has experience with the interpretation of
sulphur isotopes in phosphate. There is very little in the literature about
this subject and I cannot believe that this avenue has been so little
explored. Work carried out here in Zurich, in Bochum (courtesy of Harald
Strauss) and at Vermont (courtesy of Stephen Howe) suggests that seawater
sulphur isotope ratios have been preserved in peloidal phosphates from the
Cambrian. Some sulphates are very slightly enriched in 34S. Any info.,
comments would be most welcome before I start to put all this down on
paper.
Graham
Graham Shields (http://www.erdw.ethz.ch/~shieldsg/)
Sonneggstrasse 5
Geologisches Institut
ETH-Zentrum
CH-8092, Zurich, Switzerland
Fax: 41-1-632 1080
Tel: 41-1-632 3690
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