Darren,

recently, I published some experimental results on the aragonite-MnCa-
carbonate transformation at 20 C in Mar.
Chem. The paper also contains some results regarding oxygen isotope
variation.

Cheers
Michael

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Dr. Michael E. Boettcher
Institute of Chemistry and Biology of the Marine Environment (ICBM)
Carl von Ossietzky University
P.O. Box 2503
D-26111 Oldenburg
FRG
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