Item description for Folding and Fracturing of Rocks (International Series in the Earth and Planetary Sciences) by John G. Ramsay...
Folding and Fracturing of Rocks was first published in 1967. It was one of the first major publications aimed at developing for geologists the basic theory of stress and strain in mathematical terms and explaining how this theory could be used to solve practical problems in structural geology and tectonics. Although out-of-print for many years it is still one of the most frequently cited and quoted texts in modern research publications in structural geology.
Although texts discussing the basic theory of stress and strain had been long available in engineering, metallurgical and materials science very few of these texts made any reference to the application of these principles to the study of rock strain, fracturing and folding processes commonly arising in geology.Folding and Fracturing of Rocks developed the theory of both small and large finite strain with particular emphasis on progressive deformation and its geological implications for the development of the structures actually observed in naturally deformed rocks. It was one of the first textbooks to discuss the practical methods for evaluating the states of finite strain in two and three dimensions and the implications of these methods to further our understanding of structural geometry.
The book set out the concepts of displacement and finite strain and showed how strain states could be represented in diagrammatic forms as originally devised by Otto Mohr for states of stress. Many of the developments were novel at the time of publication and have had major applications in subsequent research. For example, the basic theory of the deformation of initial elliptically-shaped objects was shown to have important practical application to the determination of finite strain in naturally occurring aggregates of non-spherical particles, such as occur in pebble conglomerates. The technique, which has subsequently been called the "centre to centre" method, has become the basis of the standard determination of strain in deformed clastic rocks.
The discussions and methods of strain analysis set out in Folding and Fracturing of Ricks have stood the test of time and many of the subsequent research developments in structural geology have their origins in this book. The reasons for the relevance of this book to current research are first, the book is based on sound mathematical principles which have not become dated and second, the discussions of deformation theory are illustrated with many photographs of the structures seen in naturally deformed rocks.
The author has always been of the opinion that the structures actually observed in naturally formed rocks form the key to our understanding of tectonic processes and that the development of mechanical models for the origin of these structures must always be compared with natural systems if they are to be truly relevant.
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Est. Packaging Dimensions: Length: 0.75" Width: 5" Height: 7.5" Weight: 0.4 lbs.
Publisher The Blackburn Press
ISBN 193066589X ISBN13 9781930665897