The Principle Of Petrology

Written By : G. W. Tyrrell
Publisher By : B. I. Publications
In this book the task of summarising modem petrology from the genetic standpoint has been attempted. The scale of the work is small as compared with the magnitude of its subject, but it is nevertheless believed that the field has been reasonably covered. In conformity with the genetic viewpoint petrology, as contrasted with petrography, has been emphasised throughout; and purely descriptive mineralogical and petrographical detail has been omitted. The emphasis laid on modem views, and the relative poverty of references to the works of the older generation of petrologists, does not imply any disrespect of the latter. It is due to recognition of the desirability of affording the petrological student a newer and wider range of reading references than is usually supplied in this class of work ; for references tend to become stereotyped as well as text and illustrations. Furthermore it is believed that all that is consciously or unconsciously, in the newer. It is hoped that the book will appeal to students of geology who have acquired an elementary knowledge of the science, and who are going on to more advanced work; to advanced students and post-graduate researches; and to workers in other branches of geology who desire a conspectus of the present state of the science of petrology. Furthermore it is believed that the book will prove useful to workers engaged in technical and applied aspects of geology, in all of which some knowledge of rocks in general is fundamental. G.W. Tyrrell A. R. C.Sc., F.G.S., F.R.S.E., D. Sc. (Glasgow) Lecturer in Geology in the University of Glasgow.