Mechanism of Graben Formation


Book Description

Developments in Geotectonics, 17: Mechanism of Graben Formation covers the papers of an ICG Symposium held during the 17th IUGG General Assembly in Canberra, Australia on December 5, 1979. The book focuses on the formation, behavior, and mechanisms of grabens. The selection first offers information on crustal doming and the mechanism of continental rifting, mechanisms of continental riftogenesis, and thermal regimes, mantle diapirs, and crustal stresses of continental rifts. The text then ponders on crustal uplift and the propagation of failure zones and parameterized rift development and upper mantle anomalies. The publication surveys the continental rift system of the Rhinegraben-structure, physical properties, and dynamical processes and an example of the intrusion of asthenospheric material into the lithosphere as the cause of disruption of lithospheric plates. Regional stress field and rifting in Western Europe and the nature of greenstone belts in the Precambrian are also discussed. The selection is a dependable source of information for geologists and readers interested in the formation of grabens.




Processes of Continental Rifting


Book Description

Selected papers from the Lunar and Planetary Institute Topical Conference, St. Helena, CA, USA, 3-5 Dec. 1981







Volcanotectonics


Book Description

A comprehensive guide for students and researchers to the physical processes inside volcanoes that control eruption frequency, duration, and size.




Geodynamics of Rifting


Book Description

This volume contains papers giving an interdisciplinary review of 12 major rift systems from North and South America, Africa, Europe and Asia. These papers are written by an international group of academic and industrial specialists each of whom is most knowledgeable about the respective rift. The analyzed rifts were selected on the basis of availability of an as-complete-as-possible geological and geophysical data base. Thirteen papers deal with geodynamic processes governing the evolution of rifts.A comprehensive digest of the available stratigraphic, structural, geophysical and petrological data, together with an extensive list of references, is provided for each of the analyzed rift systems. The megatectonic setting and dynamics of evolution of each basin is discussed. Geodynamic models are tested against the record of the analyzed rifts.The question of "active" as against "passive" rifting is addressed. The rifts analyzed range in age from Precambrian to Recent and cover a wide spectrum of megatectonic settings. There is discussion of the evolution of rifts in a plate-tectonic frame. The case histories are followed by discussions addressing the global setting of rifts and geodynamic processes active during the development of rifted basins.




Analysis of Geological Structures


Book Description

A knowledge of structural geology is fundamental to understanding the processes by which the earth's crust has evolved. It is a subject of fundamental importance to students of geology, experienced field geologists and academic researchers as well as to petroleum and mining engineers. In contrast to many structural textbooks which dwell upon geometrical descriptions of geological structures, this book emphasises mechanical principles and the way in which they can be used to understand how and why a wide range of geological structures develop. Structures on all scales are considered but the emphasis of the book is on those that can be seen on the scale of hand specimen or outcrop. Drawing on their considerable teaching experience the authors present a coherent and lucid analysis of geological structures which will be welcomed by a wide variety of earth scientists.




RIDGE Events


Book Description




Seismic Design of Steel Structures


Book Description

Providing real world applications for different structural types and seismic characteristics, Seismic Design of Steel Structures combines knowledge of seismic behavior of steel structures with the principles of earthquake engineering. This book focuses on seismic design, and concentrates specifically on seismic-resistant steel structures. Drawing on experience from the Northridge to the Tohoku earthquakes, it combines understanding of the seismic behavior of steel structures with the principles of earthquake engineering. The book focuses on the global as well as local behavior of steel structures and their effective seismic-resistant design. It recognises different types of earthquakes, takes into account the especial danger of fire after earthquake, and proposes new bracing and connecting systems for new seismic resistant steel structures, and also for upgrading existing reinforced concrete structures. Includes the results of the extensive use of the DUCTROCT M computer program, which is used for the evaluation of the seismic available ductility, both monotonic and cyclic, for different types of earthquakes Demonstrates good design principles by highlighting the behavior of seismic-resistant steel structures in many applications from around the world Provides a methodological approach, making a clear distinction between strong and low-to-moderate seismic regions This book serves as a reference for structural engineers involved in seismic design, as well as researchers and graduate students of seismic structural analysis and design.




Evolution of an Andean Margin


Book Description

"The objective of this volume is to examine the Cenozoic tectonic and magmatic evolution from the arc to the retroarc of a distinctive end-member of the Andean accretionary orogen between 35*S and 39*S. The evolution of the Andes in this region provides an outstanding case study of an orogen where periods of contraction and extension, crustal shortening and normal faulting, and differences in retroarc volcanism reflect a tectonic regime that alternates in space and time. Structural, magmatic, and paleogeographic patterns correlate strongly with the dynamics of the subduction zone. The region includes the Neuquen basin which is one of the most prolific of the Central Andes. The tectonic setting is important in understanding hydrocarbon systems of the sub-Andean basin and the potential for ore deposits in the cordillera. The book is fundamental for researchers working on tectonics and magmatism in Andean type systems as well as those involved in exploration."--Publisher's website.




Sedimentary Basins of Continental Margins and Cratons


Book Description

Developments in Geotectonics, 12: Sedimentary Basins of Continental Margins and Cratons focuses on the formation, movements, characteristics, and evolution of sedimentary basins of continental margins and cratons. The selection first offers information on mechanisms of basin subsidence and rheology of the lithosphere. Discussions focus on hypotheses of basin subsidence mechanism, testing the hypotheses, elastic properties and flexural rigidity of the lithosphere, and rheology of young continental margins. The text then elaborates on flexure of the lithosphere and continental margin basins and thermal and mechanical evolution of the Michigan basin. The book ponders on the formation of sedimentary basins of graben type by extension of the continental crust and major synchronous events in continental shelves. Topics include inception of shelf development, mid-cretaceous change, taphrogenic subsidence, and energy budget of wedge subsidence mechanism. The manuscript also examines development of graben associated with the initial ruptures of the Atlantic Ocean and observations on the processes of sedimentary basin formation at the margins of Southern Africa. The selection is a dependable reference for readers interested in the study of continental margins.