Just thought you may be interested in this ref. on the Red Sea:

Stoffers, P. & Botz, R. (1990). Carbonate crusts in the Red Sea: Their
composition and Isotope Geochemistry. In Ittekkot, V., Kempe, S., Michaelis,
W. & Spitzy, A. (eds.): Facets of Modern Biogeochemistry, Festschrift for
E.T. Degens, pp. 242-252. Springer-Verlag, Berlin.

Cheers

        Darren



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Darren R. Grocke

Department of Earth Sciences
University of Oxford
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Oxford OX1 3PR
UNITED KINGDOM

Phone: +44 1865 272 019
Fax: +44 1865 272 072
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http://www.earth.ox.ac.uk/~darreng/
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