Frederic Vitali,

With respect to corrensite, take a look at:

Savin, S. M. and Lee, M., 1988, Isotopic studies of phyllosilicates, in
Bailey, S. W., ed., Hydrous Phyllosilicates, Reviews in Mineralogy, Vol.
19, Mineralogical Society of America, Wash. D. C., 189-223.

The oxygen isotope fractionation between corrensite (mixed layer
smectite/chlorite) is not explicitly given in this paper. Nevertheless, you
can make estimates from (1) an empirical bond-type calculation; and, (2)
combining smectite and chlorite fractionations.

Bill McKenzie

>Dear all
>
>I would like to find refererences on oxygen isotope fractionation factors
>of CORRENSITE mineral. If somebody has information about this, I will
>appreciate to receive these references.
>thank you in advance
>
>Frederic VITALI
>Centre de geochimie de la Surface,CNRS
>1 rue blessig, 67084 Strasbourg,France
>Fax number: (33) 88 36 72 35
>E-mail: [log in to unmask]