Coeficientes de partición de litio, rubidio y estroncio entre cordierita y granate paragenéticos

RAPELA, C.W.; GORDILLO, C.E.

Revista Asociación Geoloógica Argentina

Asociación Geológica Argentina

Lugar: Buenos Aires; Año: 1981 vol. 36 p. 180 - 186

0004-4822

Partition coefficients between cordierite and garnet from high-grade metamorphic rocks have been determined for lithium, rubidium and strontium by atomic absorption spectrometry. The calculated weigh partition coefficients KiCO/Gt are in all cases greater than 1 for the three elements analyzed. Inferred cordierite/liquid partition coefficients are in average from to 2.0 to 2.5 times greater than published garnet/Liquid values (Arth, 1976). Calculations for kinzigitic rocks from Sierra de Córdoba indicate that the anatectic liquid in equilibrium with those residues had a Rb/Sr ratio = 0.5.