El metamorfismo de contacto e hidrotermalismo asociados al batolito de la Maladeta: Geoquímica isotópica de C y O en carbonates

Abstract

The isotopic composition of carbonates related to the skarn and contact metamorphic aureole of La Maladeta batholith show a broad range of variation. The whole set of obtained data can be modeled by means of an isotopic exchange between a fluid equilibrated with a magma, with an isotopic composition of ô '“O smow =8-5% o and unknow S IJCmB at Xco, < 0 . 0 2 and a Devonian limestone of 8 laO Mnw= 2 8 -29%o 8 I3Cpdi=4-5%o Volatilization processes have been observed previosly to isotopic exchange