gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1998.62A.2.11 Clinopyroxene Phenocryst Formation in an Alkaline Magma: Interpretations from Oscillatory Zoning Hoskin P. W. O. Research School of Earth Sciences, Australian National University, Canberra ACT 0200, Australia Arslan M. Aslan Z. Karadeniz Teknik Universitesi, Jeoloji Mühendisligi Bolnmu, 61080-Trabzon, Turkey 1998 62A 2 653 654 Copyright © 1998, The Mineralogical Society 1998