Deformation Mechanisms, Rheology and Tectonics: From Minerals to the Lithosphere (Geological Society Special Publication No. 243)

This book consists of 18 papers on deformation mechanisms, rheology and tectonics. The main approaches include experimental rock deformation, microstructural analysis, field structural studies, analogue and numerical modeling. New results on various topics are presented, ranging from brittle to ductile deformation and grain-scale to lithosphere-scale mechanisms. The volume contains review papers on several major current topics, such as the rheology of the lithospheric mantle and the mechanisms of exhumation of high-pressure tectonic units, as well as research papers on kinematic and mechanical analysis of rock deformation and related new techniques. Several contributions emphasize the increasing ability and wish of researchers to strengthen the links between small-scale physical mechanisms and large-scale tectonics. The volume will be of interest to academic and industrial researchers in the fields of structural geology, interactions between metamorphism, fluids and deformation, and large-scale tectonic processes.Also available: The Initiation, Propagation, And Arrests of Joints And Other Fractures - ISBN 1862391653 Flow Processes in Faults And Shear Zones - ISBN 186239153X Deformation Mechanisms, Rheology and Tectonics: Current Status and Future Perspectives - ISBN 1862391173 Opening histories of fractures in sandstone -- S.E. Laubach ... [et al.] Growth of ductile opening-mode fractures in geomaterials -- P. Eichhubl Age and depth evidence for pre-exhumation joints in granite plutons -- P. Bankwitz ... [et al.] Feedback between joint-zone development and downward erosion of regularly spaced canyons in the Navajo sandstone, Zion National Park, Utah -- C.M. Rogers & T. Engelder Predicting fracture swarms, the influence of subcritical crack growth and the cracktip process zone on joint spacing in rock -- J. E. Olson Fracture-pattern variations around a major fold and their implications regarding fracture prediction using limited data / M. Belayneh & J.W. Cosgrove -- Index of hackle raggedness on joint fringes -- D. Bahat, P. Bankwitz & E. Bankwitz Arrest and aperture variation of hydrofractures in layered reservoirs -- S.L. Brenner & A. Gudmundsson Preferential jointing of Upper Devonian black shale, Appalachian Plateau, USA -- G. Lash, S. Loewy and T. Engelder Using differential geometry to characterize and analyse the morphology of plants -- D. D. Pollard, S. Bergbauer & I. Mynatt Relationship of tilt and twist of fringe cracks in granite plutons -- P. Bankwitz, E. Bankwitz Differences between veins and joints using the example of the Jurassic limestones of Somerset -- D.C.P. Peacock Fracture development within a straovolcano -- M. Nemčok ... [et al.] 2 Palaeostress orientation inferred from surface morphology of joints on the souern margin of the Bristol Channel Basin, UK -- M. Belayner Eight distinct fault-joint geometric/genetic relationships in the Beer Sheva syncline, Israel -- D. Bahat Probabilistic-mechanistic simulation of bed-normal joint patterns / W. Hoffman, W.M. Dunne -- Orientation distribution of single joint sets -- T. Engelder & J. Delter Stress-controlled localization of deformation and fluid flow in fractured rocks -- D. J. Sanderson & X. Jhang Indentation pits -- T Engelder, K. Schulmann & O. Lexa. Faults and their deeper level equivalents, shear zones, are localized regions of intense deformation within the Earth. They are recognized at all scales from micro to plate boundary, and are important examples of the nature of heterogeneous deformation in natural rocks. Faults and shear zones are significant as they profoundly influence the location, architecture and evolution of a broad range of geological phenomena. The topography and bathymetry of the Earth's surface is marked by mountain belts and sedimentary basins which are controlled by faults and shear zones. In addition faults and shear zones control fluid migration and transport including hydrothermal and hydrocarbon systems. Once faults and shear zones are established, they are often long-lived features prone to multiple reactivation over very large time-scales. This collection of papers addresses lithospheric deformation and the rheology of shear zones, together with processes of partitioning and the unravelling of fault and shear zone histories. Faults and their deeper level equivalents, shear zones, are localized regions of intense deformation within the Earth. They are recognized at all scales from micro to plate boundary, and are important examples of the nature of heterogeneous deformation in natural rocks. Faults and shear zones are significant as they profoundly influence the location, architecture and evolution of a broad range of geological phenomenao The topography and bathymetry of the Earth's surface is marked by mountain belts and sedimentary basins that are controlled by faults and shear zoneso In addition, faults and shear zones control fluid migration and transport including hydrothermal and hydrocarbon systems. Once faults and shear zones are established, they are often long-lived features prone to multiple reactivation over very large time-scales. This collection of papers addresses lithospheric deformation and the rheology of shear zones, together with processes of partitioning and the unravelling of fault and shear zone histories The motion and deformation of rocks are processes of fundamental importance in shaping the Earth, from outer crustal layers to the deep mantle. Reconstructions of the evolution of the Earth therefore require detailed knowledge of the geometry of deformation structures and their relative timing, of the motions leading to deformation structures and of the mechanisms governing these motions. This volume contains a collection of 22 papers on field, experimental and theoretical studies that add to our knowledge of these processes. They are a mixture of review papers on selected topics in the field of structural geology and tectonics and papers on current issues and new techniques and are grouped into four themes: The effect of fluids on deformation; The interpretation of Microstructures and textures; Deformation mechanisms and rheology of crust and upper mantle minerals; Crust and lithosphere tectonics.

this Volume Is A State Of The Art Look At Our Understanding Of Joint Development In The Crust. Answers Are Provided For Such Questions As The Mechanisms By Which Joints Are Initiated, The Factors Controlling The Path They Follow During The Propagation Process, And The Processes Responsible For The Arrest Of Joints. Many Of The Answers To These Questions Can Be Inferred From The Geometry Of Joint Surface Morphology And Joint Patterns. Joints Are A Record Of The Orientation Of Stress At The Time Of Propagation And As Such They Are Also Useful Records Of Ancient Stress Fields, Regional And Local. Because Outcrop And Subsurface Views Of Joints Are Limited, Statistical Techniques Are Required To Characterize Joints And Joint Sets. Finally, Joints Are Subject To Post-propagation Stresses That Further Localize Deformation And Are The Focus For The Development Of New Structures.

This book consists of 18 papers on deformation mechanisms, rheology and tectonics. The main approaches include experimental rock deformation, microstructural analysis, field structural studies, analogue and numerical modelling. New results on various topics are presented, ranging from brittle to ductile deformation and grain-scale to lithosphere-scale mechanisms Cover 1 Cover (big) 2 Frontmatter 3 Contents 7 Preface 9 Dedication 10 1 12 11 22 25 36 37 48 51 61 67 77 81 90 97 105 127 134 143 150 159 166 175 182 193 200 205 212 227 234 249 255 277 283 295 301 Index 317 Backcover 327 Collection of original papers and review articles based on work presented at the conference held in Noordwijkerhout, Netherlands in April 2001.