gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1994.58A.2.75 Local Diversity of MORB Parent Magmas: Evidence from Melt Inclusions in High-An Feldspar from the Gorda Ridge Nielsen R. L. Crum J. Bourgeois R. Hascall K. Forsythe L. Christie D. M. Fisk M. R. College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, 97331-5503 August–September 1994 58A 2 651 652 Copyright © 1994, The Mineralogical Society 1994