gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1994.58A.2.103 Geochemical Evidence for Magma Generation above Subduction Zones Pearce J. A. Dept. of Geological Sciences, University of Durham, Durham DH1 3LE Parkinson I. J. Dept. of Geology, ANU, Canberra ACT 0200, Australia Peate D. W. California Institute of Technology, Pasadena, CA 91125 August–September 1994 58A 2 701 702 Copyright © 1994, The Mineralogical Society 1994