Hygromagmatophile element

According to Treuil, the constant concentration ratio of two hygromagmatophile elements is indicative of fractional crystallization. From the Doerner-Hoskins equation ... 

However, equation 10.133 is not sufficient to ascribe magmatic evolution to fractional crystallization if it is not supported by petrologic evidence. Adopting the formalism of Shaw (1970), it may be shown that the distribution of hygromagmatophile elements in fractionally accumulated liquids leads to the same sort of linear array. The equation... 

Treuil, L. Joron, J.-L. (1975). Utilisation des elements hygromagmatophiles pour la... 

Treuil, L. and Joron, J.L., 1975. Utilisation des elements hygromagmatophiles pour la simplification de la modelisation quantitative des processus magmatique. Examples de I Afar et la dorsale medioatlantique. Soc. Ital. Mineral. Petrol., 31 125-174. 

Trace element When the Earth s mantle is melted, trace elements display a preference either for behaviour in the melt phase or the solid (mineral) phase. Trace elements whose preference is the magmatic sterns mineral phase are described as compatible, whereas elements whose preference is the melt are described as incompatible — i.e. they are incompatible in the mineral structure and will leave at the first available opportunity. Incompatible elements have also been called hygromagmatophile, a term first introduced by Treuil and Varet(1973). 

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