gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1994.58A.1.77 Highly Oxidized Deep Metamorphic Zones: Occurrence and Origin Cameron E. M. Geological Survey of Canada, 601 Booth Street, Ottawa, K1A0E8, Canada Hattori K. Ottawa-Carleton Geoscience Centre and University of Ottawa, Ottawa, K1N 6N5 8 1994 58A 1 142 143 Copyright © 1994, The Mineralogical Society 1994