Download or read book Granite From Segregation of Melt to Emplacement Fabrics written by J.-L. Bouchez and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: viii debate of those earlier days has been beautifully summarized by H. H. Read in his famous "Granite Controversy" (1957). Read's formulation of the controversy occurred at the time when geochemistry was as a new and powerful tool. The new techniques opened era during which emerging an granites were considered mainly from this new viewpoint. Geochemical signatures have shown that mantle and crustal origins for granites were both possible, but the debate on how and why granites are emplaced did not progress much. Meanwhile, structural geology was essentially geometrical and mechanistic. In the early 70's, the structural approach began to widen to include solid state physics and fluid dynamics. Detailed structural maps of granitic bodies were again published, mainly in France, and analysed in terms of magmatic and plastic flow. The senior editor of this volume and his students deserve much of the credit for this new development. Via microstructural and petrofabric studies, they were able to discriminate between strain in the presence of residual melt or in the solid-state, and, by systematically measuring magnetic fabrics (AMS), they have been able to map magmatic foliations and lineations in ever finer detail, using the internal markers within granites coming from different tectonic environments. The traditional debate has been shifted anew. The burning question now seems to be how the necessary, large-scale or local, crustal extension required for granite emplacement can be obtained.
Download or read book Granites written by Anne Nédélec and published by OUP Oxford. This book was released on 2015-01-09 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Granites are emblematic rocks developed from a magma that crystallized in the Earth's crust. They ultimately outcrop at the surface of every continent. This book offers a modern presentation of granitic rocks. It considers granites in their geological spatial and temporal frame, and in relation to plate tectonics and Earth history. The book - translated, edited, and updated from the original French edition Pétrologie des Granites published by Vuibert in 2011 - gives a modern presentation of granitic rocks, or granites, from magma genesis to their emplacement into the crust and their crystallization. Mineralogical, petrological, physical, and economical aspects are explored and developed in a succession. The text is supported throughout by a large number of illustrations, descriptions of modern techniques, and additional boxes holding further discussions for those wishing to deepen their knowledge of the subject.
Download or read book The Fourth Hutton Symposium on the Origin of Granites and Related Rocks written by Bernard Barbarin and published by Geological Society of America. This book was released on 2001-01-01 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Understanding Granites written by Jean Louis Vigneresse and published by Geological Society of London. This book was released on 1999 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deformation Mechanisms Rheology and Tectonics written by Siese de Meer and published by Geological Society of London. This book was released on 2002 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Atlas of Migmatites written by E. W. Sawyer and published by NRC Research Press. This book was released on 2008 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Migmatites are highly heterogeneous rocks found in high-grade metamorphic environments; they are commonly encountered in the continental crust. Until now, many geologists have been deterred from working with migmatites because of their complex appearance and an unhelpful non-genetic nomenclature. In his Atlas of Migmatites, Dr. Edward Sawyer provides genetically based definitions and a system of nomenclature with which it will be possible to describe and map migmatites effectively and to understand how combinations of factors and processes produce a bewildering morphological diversity. Migmatites are produced by partial melting; to aid the reader in the identification of migmatites, the author describes and illustrates microstructures that can be used to infer the presence of melt or a melt-producing reaction. He also describes how geochemical data can be used to infer petrological processes involved in migmatite development. This book includes the results from two decades of research in whole-rock geochemistry, partial melting, microstructural analysis and experimental deformation of partially molten rocks. It contains information from an outcrop through to a grain scale. Exceptionally well illustrated, with 272 colour plates and accompanying detailed captions, the Atlas provides descriptions and analyses of migmatites not previously available.
Download or read book Sixth Hutton Symposium on the Origin of Granites and Related Rocks written by John D. Clemens and published by Geological Society of America. This book was released on 2010 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Salt Shale and Igneous Diapirs in and Around Europe written by Bruno C. Vendeville and published by Geological Society of London. This book was released on 2000 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nature and Tectonic Significance of Fault Zone Weakening written by Robert E. Holdsworth and published by Geological Society of London. This book was released on 2001 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many faults appears to form persistent zones of weakness that fundamentally influence the distribution, arichitecture and movement patterns of crustal-scale deformation and associated processes in both continental and oceanic regions. They act as conduits for the focused migration of economically important fluids and also constitute one of the most important global geological hazards. This book brings together papers by an international group of Earth Scientists to discuss a broad range of topics centred upon the controls of fault weakening and the role of such faults during lithosphere deformation.
Download or read book Channel Flow Ductile Extrusion and Exhumation in Continental Collision Zones written by Richard D. Law and published by Geological Society of London. This book was released on 2006 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes sections on: Evolution of ideas on channel flow and ductile extrusion in the Himalaya-Tibetan Plateau system; Modeling channel flow and ductile extrusion processes; Geological constraints on channel flow and ductile extrusion as an important orogenic process in the Himalaya-Tibetan Plateau, the Hellenides and Appalachians, and the Canadian Cordillera.
Download or read book Evolution and Differentiation of the Continental Crust written by Michael Brown and published by Cambridge University Press. This book was released on 2006-02-27 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary of recent research covering experimental methods and numerical modelling, for graduate students and researchers.
Download or read book Magnetic Fabric written by Geological Society of London and published by Geological Society of London. This book was released on 2004 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship between magnetic fabric and petrofabric is complex and depends on various factors including the composition, concentration and grain size of mineral grains. Ongoing research in geological applications is paralleled by studies of the fundamental mineral magnetic phenomena involved. The papers in this book represent the current state of investigations in magnetic anisotropy studies as a discipline that integrates geological interpretations, mineral fabric development, technical advances and rock-magnetic properties.
Download or read book The Earth s Magnetic Interior written by Eduard Petrovský and published by Springer Science & Business Media. This book was released on 2011-06-11 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume combines review and solicited contributions, related to scientific studies of Division I of IAGA presented at its Scientific Assembly in Sopron in 2009. The book is aimed at intermediate to advanced readers dealing with the Earth’s magnetic field generation, its historical records in rocks and geological formations - including links to geodynamics and magnetic dating, with magnetic carriers in earth materials, electromagnetic induction and conductivity studies of the Earth interior with environmental applications of rock magnetism and electromagnetism. The aim of the book is to provide an overview of recent advances and future challenges in these particular fields of research.
Download or read book Archean Granitoids of India Windows into Early Earth Tectonics written by S. Dey and published by Geological Society of London. This book was released on 2020-12-22 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Granitoids form the bulk of the Archean continental crust and preserve key information on early Earth evolution. India hosts five main Archean cratonic blocks (Aravalli, Bundelkhand, Singhbhum, Bastar and Dharwar). This book summarizes the available information on Archean granitoids of Indian cratons. The chapters cover a broad spectrum of themes related to granitoid typology, emplacement mechanism, petrogenesis, phase-equilibria modelling, temporal distribution, tectonic setting, and their roles in fluid evolution, metal delivery and mineralizations. The book presents a broader picture incorporating regional- to craton-scale comparisons, implications for Archean geodynamic processes, and temporal changes thereof. This synthesis work, integrating modern concepts on granite petrology and crustal evolution, offers an irreplaceable body of reference information for any geologist interested in Archaean Indian granitoids.
Download or read book Fifth Hutton Symposium written by Shuns? Ishihara and published by Geological Society of America. This book was released on 2005-01-01 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High strain Zones written by Geological Society of London and published by Geological Society of London. This book was released on 2005 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of research and review papers addresses the question of structural evolution during deformation to high strains and the physical properties of rocks that have been affected by high-strain zones. The discussions range from natural examples at outcrop to microscopic studies. They include experiments and numerical models based on the active processes in high-strain zones as well as studies on the physical properties of highly strained rocks in the field and laboratory. Specific questions addressed include magnetotelluric imaging of faults, magnetic fabrics, fabric development, seismic properties of highly strained rocks, change of rheology with strain, influence of melt on the localization of deformation, the relationship between deformation and metamorphism as well as new methods in the analysis of deformation. The book is aimed at an interdisciplinary group of readers interested in the effects of high strain in rocks.
Download or read book Post Archean Granitic Rocks written by V. Janoušek and published by Geological Society of London. This book was released on 2020-07-02 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Granites (sensu lato) represent the dominant rock-type forming the upper–middle continental crust but their origin remains a matter of long-standing controversy. The granites may result from fractionation of mantle-derived basaltic magmas, or partial melting of different crustal protoliths at contrasting P–T conditions, either water-fluxed or fluid-absent. Consequently, many different mechanisms have been proposed to explain the compositional variability of granites ranging from whole igneous suites down to mineral scale. This book presents an overview of the state of the art, and envisages future avenues towards a better understanding of granite petrogenesis. Particular emphasis of this Volume is on the following topics: Compositional variability of granitic rocks generated in contrasting geodynamic settings during Proterozoic to Phanerozoic Periods, Main permissible mechanisms producing subduction-related granites, Crustal anatexis of different protoliths, and the role of water in granite petrogenesis, New theoretical and analytical tools available for modelling whole-rock geochemistry, in order to decipher the sources and evolution of granitic suites.
