gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1987.051.359.11 Electron Microscopy in Mineralogy and Petrology Analytical Transmission Electron Microscopy in the Study of Diagenetic Clay Minerals Curtis C. D. 1 Hughes C. R. 1 Ireland B. J. 2 Warren E. D. 1 Whiteman J. A. 3 Whittle C. K. 1 1Department of Geology, University of Sheffield, Sheffield S3 7HF 2Amoco Canada Petroleum Company Ltd. 3Department of Metallurgy, University of Sheffield 3 1987 51 359 123 124 14 7 1986 Copyright © 1987, The Mineralogical Society 1987