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Determination of trace element mineral/liquid …

Geochimica et Cosmochimica Acfa Vol. 53, pp. 31 IS-3130 Copyright 8 1989 Pergamon Press pk. Printed in 0016-7037 + .oO Determination of trace element mineral/liquid partition coefficients in melilite and diopside by ion and electron microprobe techniques S. M. KUEHNER, J. R. LAUGHLIN,* L. GROSSMAN, M. L. JOHNSON,~ and D. S. BURNETT~ Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637, Department of Chemistry, University of Chicago, Chicago, IL 60637, Department of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 9 1125, (Received February 6, 1989; accepted in revisedform September 15, 1989) Abstract-The use of the ion microprobe for quantitative analysis of Sr, Y, Zr, La, Sm, and Yb in melilite and pyroxene is evaluated. Three trace element -doped synthetic glasses of composition Ah, Ak,, and D&AbAn were analyzed by ion microprobe (IMP) using ion yields determined from Coming glass stan- dards.

Determination of trace element mineral/liquid partition coefficients in ... EQUILIBRIUM PARTITIONING of trace elements between crys- tals and coexisting liquids has been used extensively to model the chemical evolution of a magma brought about by crystal fractionation processes. ...

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