Practical Sedimentology

Sedimentology has neither been adequately popularized nor This book begins with a consideration of the complex end commonly taught as an interdisciplinary subject, and many product of processes and materials, the sedimentary environ workers in the areas of modem environment studies have very ment. It then proceeds to discuss the processes and materials limited knowledge of sedimentology. Practical Sedimentol themselves. The emphasis is on geological interpretations of ogy (henceforth PS) is designed to provide an introduction and ancient deposits, but most discussions are also relevant to review of principles and interpretations related to sedimentary modem sediments and can be used to predict environmental processes, environments, and deposits. Its companion volume, changes. A basic knowledge of geological jargon is antici Analytical Sedimentology (henceforth AS), provides "cook pated for users of this book; we try to define most of the more book recipes" for common analytical procedures dealing with esoteric terms in context, but if there are additional incom sediments, and an introduction to the principles and reference prehensible terms, refer to Bates and Jackson's Glossary of sources for procedures that generally would be performed by Geology (AGI, 1987). specialist consultants or commercial laboratories. Specialist sedimentologists will find in them useful reviews, whereas sci ACKNOWLEDGMENTS entists from other disciplines will find in them concepts and procedures that may contribute to an expanded knowledge of Many chapter drafts ofPS were critically reviewed by Dr. M.

This book is designed for a one-semester course in sedimentology taken by advanced undergraduate or graduate students. It gives detailed descriptions of sedimentary features and the analytical methods used to evaluate them and is intended to support and reinforce principles presented in lectures. Discussion of principles and processes is found in complimentary texts, such as Leeder's (1982) Sedimentology: process and product and selected readings in professional journals. This book is not an exhaustive treatise of laboratory techniques and theory. The subject matter includes topics generally covered in courses entitled "Sedimentology" or "Sedimentation". Sandstone and carbonate petrography is commonly given in a separate course. Furthermore, this topic is covered in several current texts. For these reasons I have omitted petrographic methods, with the exception of those applying to heavy minerals. I have included a rather extensive discussion of heavies because this topic is generally lacking in most modern texts. Every course in sedimentology is highly individualistic and material covered varies with the interests, background, and point of view of the instructor. For these reasons some topics presented in this book are not necessarily covered in all courses. Similarly some instructors may find that their favorite topic is missing. I can only hope that this problem is minimal. Several chapters contain precise exercises to be completed by the student. Some must be done in the classroom, where specimens are available for study. Others may be done outside of the classroom.

This book is designed for a one-semester course in sedimentology taken by advanced undergraduate or graduate students. It gives detailed descriptions of sedimentary features and the analytical methods used to evaluate them and is intended to support and reinforce principles presented in lectures. Discussion of principles and processes is found in complimentary texts, such as Leeder's (1982) Sedimentology: process and product and selected readings in professional journals. This book is not an exhaustive treatise of laboratory techniques and theory. The subject matter includes topics generally covered in courses entitled "Sedimentology" or "Sedimentation". Sandstone and carbonate petrography is commonly given in a separate course. Furthermore, this topic is covered in several current texts. For these reasons I have omitted petrographic methods, with the exception of those applying to heavy minerals. I have included a rather extensive discussion of heavies because this topic is generally lacking in most modern texts. Every course in sedimentology is highly individualistic and material covered varies with the interests, background, and point of view of the instructor. For these reasons some topics presented in this book are not necessarily covered in all courses. Similarly some instructors may find that their favorite topic is missing. I can only hope that this problem is minimal. Several chapters contain precise exercises to be completed by the student. Some must be done in the classroom, where specimens are available for study. Others may be done outside of the classroom.

The first edition of Practical Sedimentology contained dis ACKNOWLEDGMENTS cussions of principles and techniques that could be applied to the analysis of sediments in the field and in laboratories sup Colleagues at the University of Canterbury and the Univer plied with inexpensive and commonly available equipment. sity of New England, Lismore, have helped with practical When considering a revised edition, we felt that it was inap advice on their experiences with various methodologies dis propriate to restrict consideration to the simple and common cussed in this volume. At the University of Canterbury, we techniques because so many modern analyses of sediments are particularly grateful to K. Swanson for advice on prepar use sophisticated and often expensive equipment to examine ing materials for scanning electron microscopy and paleonto sediments and sedimentary rocks. A review of the wide range logical specimens; to G. Coates (working at the university at of available techniques and equipment was not feasible in the the time of the first edition of Practical Sedimentology) for same volume as a review of principles. The original intent to compilation of, and additions to, the procedures for textural analysis and some tables and sketches; to Ted Montague for produce a concise summary of practical sediment studies in an inexpensive format was maintained, but now in the form the bulk of the chapter on borehole sedimentology; to Dr. J.

Sediments are the most valuable form of physical evidence for past Earth surface processes. They have the potential to build up an archive of events and provide a window into the past. Through careful examination of sediments the shifting patterns of surface processes across space and time are revealed, allowing us to reconstruct past environments and environmental change. A Practical Guide to the Study of Glacial Sediments is a guide to the standard techniques employed to read the sedimentary record of former glaciers and ice sheets. It demonstrates that the often complex and fragmentary glacial sedimentary record can, when examined systematically and rationally, provide detailed insights into former environments and climates in places where no other evidence is available. The complementary techniques covered in this book include: facies description, grain size analysis, clast form assessment, clast macrofabric analysis, micromorphology, particle lithology and assessment of engineering properties. They yield consistent and meaningful results in a range of glacial depositional environments throughout the world, from the high Arctic to the Himalayas. A Practical Guide to the Study of Glacial Sediments provides students and researchers with a clear and accessible guide to recording and interpreting glacial successions wherever the location.

Sedimentology is a core discipline of earth and environmental sciences. It enquires the origins, transport and deposition of mineral sediment on the Earth's surface. The subject is a link between positive effects arising from the building of relief by tectonics and the negative action of denudation in drainage catchments and tectonic subsidence in sedimentary basins. The author addresses the principles of the subject, emphasising the advantages of a general science approach and the importance of understanding modern processes. Sedimentology and Sedimentary Basins is not an encyclopaedia, but attempts to stimulate interdisciplinary thought across the whole subject area and related disciplines. The book has been designed to meet the needs of earth and environmental science undergraduates.