This second volume in the new series produced by the Mineralogical
Society is concerned with the study of rocks from the deep continental
crust. It is, we hope, timely to summarize recent petrological advances
contributing to this field of active interest. Based mainly on review
papers read at a conference, the chapters have subsequently been revised
and expanded, while the editors have produced an introductory overview
as Chapter 1. The conference was the Winter Meeting of the Mineralogical
Society on 15 December 1988, at wh ich Prof. R. C. Newton delivered the
20th Hallimond Lecture of the Society (which forms the basis of Ch. 7).
The editors are grateful to all who contrib- uted to the smooth running
of the meeting at Kingston Polytechnic, and in the ensuing preparation
of the volume: in particular, we sincerely thank all of the following
for their labours as referees: A. J. Baker, L. M. Barron, M. J. Bickle,
A. D. Chambers, J. D. Clemens, J. S. Daly, G. T. R. Droop, C. R. L.
Friend, E. S. Grew, S. L. Harley, R. S. Harmon, N. B. W. Harris, B.
Harte, T. J. B. Holland, N. F. C. Hudson, W. S. MacKenzie, W. Perkins,
H. R. Rollinson, J. W. Sheraton, D. J. Waters, R. H. Worden and B. W. D.
Yardley. John R.