Download or read book Eclogites and Eclogite facies Rocks written by David C. Smith and published by Elsevier Publishing Company. This book was released on 1988 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eclogite Facies Rocks written by D.A. Carswell and published by Springer. This book was released on 1990-01-31 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eclogites and eclogite facies rocks, formed at high pressures and high temperatures, provide valuable information on the physical and chemical conditions within the earth's crust. This is the first volume to provide a coherent and comprehensive review of the conditions necessary for the formation of eclogites and eclogite facies rocks and assemblages, and a detailed account of eclogite evolution and genesis. The authors present a thorough treatment of the stability relations and geochemistry of these rocks, their intimate association with continental plate collision zones and suture zones, and the implications for placing constraints of palaeo-plate movements and crustal evolution.
Download or read book Eclogite Facies Rocks written by D.A. Carswell and published by Springer. This book was released on 2013-08-12 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high pressures necessary for the stabilisation of eclogites in metabasic rocks andgarnetperidotitesinultrabasic rocks havebeen long recognised and experimentally established. Xenoliths of such rocks brought up in volatile charged alkaline magmas, such as kimberlites, are widely accepted to be mostly ofupper mantle derivation (Chapter 13). Eclogites are predicted to be thermodynamically stable also in the lower crust beneath cratonic regions. However, xenolith suite studies indicate that kinetic and/or compositional factors limit their distribution in the lower continental crust relative to granulite fades assemblages (Chapter 12). Occurrences ofeclogitesand gamet peridotites in exposed crustal metamor phic terrains have been interpreted in the past as exotic tectonic blocks of deeper (largely mantle) origin, because of their apparent difference in metamorphic grade compared with the encompassing rocks. Only in recent years have metamorphic petrologists begun to recognise that such crustal terrains sometimes preserve co-facial (eclogite fades), high pressure mineral parageneses in other spatially associated lithologies such as metapelites and metagranitoids. Placed in a modern, global geotectonic context, it is now apparent not only that eclogites can be expected to be stabilised in oceanic crust subducted at continental plate margins (Chapter 9), but also that eclogite fades mineral parageneses may be stabilised in a wider range ofcontinental crust lithologies, where substantial tectonic thickening has occurred in continental plate collision zones (Chapters 8-10). Recent exciting evidence from the Western Alps(Chapter 10)suggeststhat continental crust may be subducted to depths approaching 100km and iyet exhumed during subsequent orogenic uplift.
Download or read book The Encyclopedia of Igneous and Metamorphic Petrology written by Donald Bowes and published by Springer Science & Business Media. This book was released on 1990-02-28 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring over 250 contributions from more than 100 earth scientists from 18 countries, The Encyclopedia of Igneous and Metamorphic Petrology deals with the nature and genesis of igneous rocks that have crystallized from molten magma, and of metamorphic rocks that are the products of re-crystallization associated with increases in temperature and pressure, mainly at considerable depths in the Earth's crust. Entries range from alkaline rocks to zeolite facies - providing information on the mineralogical, chemical and textural characters of rock types, the development of concepts and the present state of knowledge across the spectrum of igneous and metamorphic petrology, together with extensive lists of both commonly used and little used terms and bibliographies.
Download or read book Blueschists and Eclogites written by Bernard W. Evans and published by Geological Society of America. This book was released on 1986 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology of the Himalayan Belt written by B.K. Chakrabarti and published by Elsevier. This book was released on 2016-03-04 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geology of the Himalayan Belt: Deformation, Metamorphism, Stratigraphy presents sophisticated metamorphic and igneous rock data across various Himalayan geographic sectors, capturing their petrography, metamorphism, structure, mineralization, and regional tectonic research. With an east-west extension of about 3000 kilometers and numerous 8000 meter peaks, the Himalayas are the most spectacular mountain ranges on earth. Since the 19th century, they have provided a testing ground of global importance for the development of geodynamic concepts, from isostasy over continental collision, to more recently, feedback mechanisms between tectonics and climate. This book collects the broad range of data that’s been gathered on the Himalayas over the past 50 years, providing a comprehensive analysis and interpretation on the available data that brings the scientific community a better understanding of the geological diversity and structure of the Himalayan belt, along with new techniques that have applications in a host of global geological settings. Features a vast amount of geological research data collected in the Himalayas over the past half century Authored by a recognized global expert on the geology of the Himalayan belt Presents analysis and interpretation techniques to aid scientists in conducting fieldwork and research Provides the latest information on geodynamic concepts, from isostasy over continental collision, to more recently, feedback mechanisms between tectonics and climate
Download or read book Eclogite Facies Metamorphism of Mafic and Ultramafic Rocks in the Tshenukutish Terrane Manicougan Imbricate Zone Eastern Grenville Province written by Richard Alexander Cox and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Grenville Province of eastern Canada consists of a variety of lithotectonic units (terranes) which formed a large mountain chain along the margin of Laurentia at 1190-1000 Ma. The deepest crustal levels of the Grenvillian orogen are best exposed along a belt of high-PT terranes which form part of the parautochthonous belt. The best exposed section is the Manicouagan Imbricate Zone which contains rocks metamorphosed at conditions up to eclogite facies. The Tshenukutish terrane is the highest structural division of the Manicouagan Imbricate Zone and contains mafic and ultramafic rocks which characterise two distinct lithotectonic units. The structurally lower unit, the Baie du Nord segment, comprises granitic and dioritic country rocks intruded by Fe-Ti gabbro and anorthosite. The highest structural units in the Tshenukutish terrane belong to the Boundary zone, a complex series of tectonic slices, which include lenses of mafic and ultramafic rocks known as the Lac Espadon suite. Cumulate textures suggest that the Lac Espadon suite represents a layered, mafic and ultramafic complex. Geochemical analysis of the gabbroic end-members from both the Lac Espadon suite and the Baie du Nord segment indicate a within-plate tholeiite petrotectonic signature. REE-patterns of the gabbroic rocks and associated cumulates further suggest fractionation from a tholeiitic source and high-crustal level emplacement U-Pb dating of igneous baddcleyite gives an age of 1170+/-5 Ma for emplacement of Fe-Ti gabbro in the Baie du Nord segment. In the Lac Espadon suite, U-Pb ages of igneous zircon and baddeleyite (ca. 1650-1630 Ma) suggest a Labradorian age of emplacement The ages of zircon formed during anatexis (1046+/-3 Ma) and other metamorphic zircon ages (1042+22/-28 Ma, 1030+10/-7 Ma, 1030+/-12 Ma, 1012+/-12 Ma) show the timing of high-PT metamorphic overprint to be Grenvillian in age. The timing of retrogression and cooling is constrained by the ages of titanite (1006-997 Ma) and rutile (960-929 Ma). The Fe-Ti gabbroic rocks from the Baie du Nord segment display mineral assemblages which represent progressive stages of metamorphic transformation resulting in the formation of coronas, granoblastic pseudomorphs (transitional) and eclogites. In addition, the transitional and eclogitic samples exhibit coronas developed locally around igneous xenocrysts. Maximum T-conditions recorded in the Baie du Nord segment are in the range 720-820 °C with recorded P-conditions reflecting increasing eclogitization (14 kbar in coronitic rocks and up to 17 kbar in eclogitic rocks). Estimates of peak PT-conditions recorded by massive corona-bearing rocks in the Lac Espadon suite are in die range 780-930 °C at 16-19 kbar. Reequilibration during the early stages of exhumation at high T-conditions (>700 °C) variably affected all samples in the Tshenukutish terrane. The PT-conditions recorded during retrogression (ca. 700-800 °C and 8-12 kbar) define segments of steep PT-paths and isothermal metamorphic (field) gradients, suggesting high heat flow through the lower crust. The presence of syn-metamorphic mafic dykes and granites further suggest heat input (including from the mantle) during exhumation. The rates of cooling and exhumation in the Manicouagan Imbricate Zone were modelled using all the available PT-data and U-Pb ages for zircon, monazite, titanite and rutile. The results indicate that the early stages of exhumation were charecterized by near isothermal conditions. Uplift rates were relatively fast (>1 mm/yr) consistent with tectonic exhumation. Rates subsequently slowed, probably during thrust emplacement of the highest structural levels (the Boundary zone) over the rest of the Tshenukutish terrane. Differences between titanite and rutile cooling ages suggest that late-stage cooling and exhumation was slow, consistent with other high-P terranes. The PTt-evolution of the Tshenukutish terrane is compatible with models for tectonic exhumation by extrusion during northwest thrusting, with extension on top of the pile. Evidence for high heat flow and rapid uplift during the initial exhumation in the Manicouagan Imbricate Zone supports current models which suggest that asthenospheric upwelling immediately followed extensional collapse of the Grenville orogen.
Download or read book Introduction to Mineralogy and Petrology written by Swapan Kumar Haldar and published by Elsevier. This book was released on 2020-07-29 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Mineralogy and Petrology, second edition, presents the essentials of both disciplines through an approach accessible to industry professionals, academic researchers, and students alike. This new edition emphasizes the relationship between rocks and minerals, right from the structures created during rock formation through the economics of mineral deposits. While petrology is classified on the lines of geological evolution and rock formation, mineralogy speaks to the physical and chemical properties, uses, and global occurrences for each mineral, emphasizing the need for the growth of human development. The primary goal is for the reader to identify minerals in all respects, including host-rocks, and mineral deposits, with additional knowledge of mineral-exploration, resource, extraction, process, and ultimate use. To help provide a comprehensive analysis across ethical and socio-economic dimensions, a separate chapter describes the hazards associated with minerals, rocks, and mineral industries, and the consequences to humanity along with remedies and case studies. New to the second edition: includes coverage of minerals and petrology in extra-terrestrial environments as well as case studies on the hazards of the mining industry. Addresses the full scope of core concepts of mineralogy and petrology, including crystal structure, formation and grouping of minerals and soils, definition, origin, structure and classification of igneous, sedimentary and metamorphic rocks Features more than 250 figures, illustrations and color photographs to vividly explore the fundamental principles of mineralogy and petrology Offers a holistic approach to both subjects, beginning with the formation of geologic structures that is followed by the hosting of mineral deposits and the exploration and extraction of lucrative, usable products that improve the health of global economies Includes new content on minerals and petrology in extraterrestrial environments and case studies on hazards in the mining industry
Download or read book Eclogite Facies Rocks and Structures of the Seba Region written by Mutsuki Aoya and published by . This book was released on 2001 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petrogenesis of Metamorphic Rocks written by Kurt Bucher and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metamorphic rocks are one of the three classes of rocks. Seen on a global scale they constitute the dominant material of the Earth. The understanding of the petrogenesis and significance of metamorphic of geological education. rocks is, therefore, a fundamental topic There are, of course, many different possible ways to lecture on this theme. This book addresses rock metamorphism from a relatively pragmatic view point. It has been written for the senior undergrad uate or graduate student who needs practical knowledge of how to interpret various groups of minerals found in metamorphic rocks. The book is also of interest for the non-specialist and non-petrolo gist professional who is interested in learning more about the geolo gical messages that metamorphic mineral assemblages are sending, as well as pressure and temperature conditions of formation. The book is organized into two parts. The first part introduces the different types of metamorphism, defines some names, terms and graphs used to describe metamorphic rocks, and discusses principal aspects of metamorphic processes. Part I introduces the causes of metamorphism on various scales in time and space, and some principles of chemical reactions in rocks that accompany metamorphism, but without treating these principles in detail, and presenting the thermodynamic basis for quantitative analysis of reactions and their equilibria in metamorphism. Part I also presents concepts of metamorphic grade or intensity of metamorphism, such as the metamorphic-facies concept.
Download or read book Geology of North West Borneo written by C.S. Hutchison and published by Elsevier. This book was released on 2005-10-24 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a comprehensive compilation of all aspects of the geology of Northwest Borneo (Sarawak, Brunei and Sabah) and the contiguous South China and Sulu Seas. The sedimentary formations are described, their palaeontology tabulated and ages discussed. Stratigraphic charts illustrate their relationships across the whole region. Detailed geological maps of selected areas are accompanied by cross sections based on outcrop patterns and drilling and seismic data offshore. Palaeocurrent maps are presented and the palaeogeography for different ages described and sedimentary provenance discussed. Descriptions of the ophiolite sequences, volcanic and plutonic rocks are accompanied by tables of selected chemical analyses and geochemical plots and their tectonic significance discussed. All radiometric data are tabulated and discussed. Regional structures and the predominantly Tertiary tectonics are described. In Sarawak the mountains are constructed of Upper Cretaceous to Lower Eocene greenschist facies shaly turbiditic Rajang Group, uplifted before the end of the Eocene. In Sabah the Western Cordillera is constructed of Eocene to Lower Miocene sandy turbidite uplifted in the Late Miocene and Pliocene. Miocene intrusion of Mount Kinabalu and uplift of the Cordillera is related to collision at the Northwest Borneo Trough. Gold, antimony, mercury and copper deposits are described and the tectonic setting of oil and gas deposits discussed. * Correlation tables, descriptions and ages of all major sedimentary formations of Sarawak, Brunei and Sabah* Petrology, geochemistry and ages of all volcanic and plutonic formations of North West Borneo and their tectonic significance* Economic geology including the geological setting of offshore oil and gas deposits
Download or read book Encyclopedia of Geology written by and published by Academic Press. This book was released on 2020-12-16 with total page 5634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Geology, Second Edition presents in six volumes state-of-the-art reviews on the various aspects of geologic research, all of which have moved on considerably since the writing of the first edition. New areas of discussion include extinctions, origins of life, plate tectonics and its influence on faunal provinces, new types of mineral and hydrocarbon deposits, new methods of dating rocks, and geological processes. Users will find this to be a fundamental resource for teachers and students of geology, as well as researchers and non-geology professionals seeking up-to-date reviews of geologic research. Provides a comprehensive and accessible one-stop shop for information on the subject of geology, explaining methodologies and technical jargon used in the field Highlights connections between geology and other physical and biological sciences, tackling research problems that span multiple fields Fills a critical gap of information in a field that has seen significant progress in past years Presents an ideal reference for a wide range of scientists in earth and environmental areas of study
Download or read book Petrogenesis of Metamorphic Rocks written by Helmut G.F. Winkler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrahigh pressure Metamorphism written by Bradley R. Hacker and published by Geological Society of America. This book was released on 2006 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eclogite Facies Rocks written by D.A. Carswell and published by Springer. This book was released on 1990-01-31 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eclogites and eclogite facies rocks, formed at high pressures and high temperatures, provide valuable information on the physical and chemical conditions within the earth's crust. This is the first volume to provide a coherent and comprehensive review of the conditions necessary for the formation of eclogites and eclogite facies rocks and assemblages, and a detailed account of eclogite evolution and genesis. The authors present a thorough treatment of the stability relations and geochemistry of these rocks, their intimate association with continental plate collision zones and suture zones, and the implications for placing constraints of palaeo-plate movements and crustal evolution.
Download or read book Petrochronology written by Matthew J. Kohn and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-11-05 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Petrochronology is a rapidly emerging branch of Earth science that links time (ages or rates) with specific rock-forming processes and their physical conditions. It is founded in petrology and geochemistry, which define a petrogenetic context or delimit a specific process, to which chronometric data are then linked. This combination informs Earth’s petrogenetic processes better than petrology or geochronology alone. This volume and the accompanying short courses address three broad categories of inquiry. Conceptual approaches chapters include petrologic modeling of multi-component chemical and mineralogic systems, and development of methods that include diffusive alteration of mineral chemistry. Methods chapters address four main analytical techniques, specifically EPMA, LA-ICP-MS, SIMS and TIMS. Mineral-specific chapters explore applications to a wide range of minerals, including zircon (metamorphic, igneous, and detrital/Hadean), baddeleyite, REE minerals (monazite, allanite, xenotime and apatite), titanite, rutile, garnet, and major igneous minerals (olivine, plagioclase and pyroxenes). These applications mainly focus on metamorphic, igneous, or tectonic processes, but additionally elucidate fundamental transdisciplinary progress in addressing mechanisms of crystal growth, the chemical consequences of mineral growth kinetics, and how chemical transport and deformation affect chemically complex mineral composites. Most chapters further recommend areas of future research.
Download or read book Subduction Zone Geodynamics written by Serge Lallemand and published by Springer Science & Business Media. This book was released on 2009-02-11 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Subduction is a major process that plays a first-order role in the dynamics of the Earth. The sinking of cold lithosphere into the mantle is thought by many authors to be the most important source of energy for plates driving forces. It also deeply modifies the thermal and chemical structure of the mantle, producing arc volcanism and is responsible for the release of most of the seismic energy on Earth. There has been considerable achievements done during the past decades regarding the complex interactions between the various processes acting in subduction zones. This volume contains a collection of contributions that were presented in June 2007 in Montpellier (France) during a conference that gave a state of the art panorama and discussed the perspectives about "Subduction Zone Geodynamics". The papers included in this special volume offer a unique multidisciplinary picture of the recent research on subduction zones geodynamics. They are organized into five main topics: Subduction zone geodynamics, Seismic tomography and anisotropy, Great subduction zone earthquakes, Seismogenic zone characterization, Continental and ridge subduction processes. Each of the 13 papers collected in the present volume is primarily concerned with one of these topics. However, it is important to highlight that papers always treat more than one topic so that all are related lighting on different aspects of the complex and fascinating subduction zones geodynamics.
