The Al2sio5 Polymorphs
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The Al2sio5 Polymorphs
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Author : Derrill M. Kerrick
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2018-12-17
The Al2sio5 Polymorphs written by Derrill M. Kerrick and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-17 with Science categories.
Volume 22 of Reviews in Mineralogy is a book exclusively devoted to three minerals: the Al2SiO5 polymorphs - andalusite, sillimanite, and kyanite. It covers a wide variety of topics that must be considered in the analysis of metamorphic systems and illustrates the fact that modern metamorphic petrology demands an awareness of a wide spectrum of geologic variables and processes. This volume is intended to provide a comprehensive review, summarizing the methods, theories and pitfalls of the various contributions on the aluminum silicates. Several sections of this book present the chronological development of research on various topics, giving readers historical perspectives on the development of theories, models and biases on various problems regarding the aluminum silicates.
On The Al2sio5 Triple Point And The Natural Occurrence Of Two Al2sio5 Polymorphs Under The Same P T Conditions
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Author : Bruce S. Hemingway
language : en
Publisher:
Release Date : 1992
On The Al2sio5 Triple Point And The Natural Occurrence Of Two Al2sio5 Polymorphs Under The Same P T Conditions written by Bruce S. Hemingway and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Andalusite categories.
Density Functional Calculations Of The Electronic Structure Of Aluminosilicate Polymorphs Al2sio5 And Mullite
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Author : Sita Ram Aryal
language : en
Publisher:
Release Date : 2007
Density Functional Calculations Of The Electronic Structure Of Aluminosilicate Polymorphs Al2sio5 And Mullite written by Sita Ram Aryal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The density functional theory (DFT) based orthogonalized linear combination of atomic orbitals (OLCAO) method is used to study the electronic structure of three aluminosilicate polymorphs (Al2SiO5), andalusite, sillimanite, and kyanite and different mullite phases. The calculations include band structure, density of states, effective charge, bond order, bond length, optical properties and XANES/ELNES spectra of three polymorphs and band structure, density of states, and effective charge of mullite phases. An interesting trend of increasing charge transfer with decreasing number of bonds is found in Al atoms in these three polymorphs. It is shown that XANES/ELNES spectra significantly depend on bonding environment of atoms. Optimized models of different mullite phases were obtained using ab-initio simulation package (VASP) structural relaxation method on mullite supercell models constructed from the partially occupied experimental structural data. The x (ratio of Al2O3 to SiO2) dependent band gap of different mullite phases is discussed.
Unfolding The Geology Of The West
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Author : Stephen M. Keller
language : en
Publisher: Geological Society of America
Release Date : 2016-09-20
Unfolding The Geology Of The West written by Stephen M. Keller and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-20 with Geology categories.
"Sixteen geologic field guides explore areas in Colorado, New Mexico, Utah, and Montana"--
Principles Of Igneous And Metamorphic Petrology
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Author : Anthony Philpotts
language : en
Publisher: Cambridge University Press
Release Date : 2009-01-29
Principles Of Igneous And Metamorphic Petrology written by Anthony Philpotts and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-29 with Science categories.
This textbook provides a basic understanding of the formative processes of igneous and metamorphic rock through quantitative applications of simple physical and chemical principles. The book encourages a deeper comprehension of the subject by explaining the petrologic principles rather than simply presenting the student with petrologic facts and terminology. Assuming knowledge of only introductory college-level courses in physics, chemistry, and calculus, it lucidly outlines mathematical derivations fully and at an elementary level, and is ideal for intermediate and advanced courses in igneous and metamorphic petrology. The end-of-chapter quantitative problem sets facilitate student learning by working through simple applications. They also introduce several widely-used thermodynamic software programs for calculating igneous and metamorphic phase equilibria and image analysis software. With over 350 illustrations, this revised edition contains valuable new material on the structure of the Earth's mantle and core, the properties and behaviour of magmas, recent results from satellite imaging, and more.
Petrogenesis Of Metamorphic Rocks
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Author : Kurt Bucher
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-06-27
Petrogenesis Of Metamorphic Rocks written by Kurt Bucher and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-27 with Science categories.
Petrogenesis of Metamorphic Rocks presents a large number of diagrams showing the stability relations among minerals and groups of minerals found in metamorphic rocks. The diagrams help to determine the pressure and temperature conditions under which a given set of metamorphic rocks may have formed. Other parameters that control metamorphic mineral assemblages are also discussed and pitfalls resulting from simplifications and generalizations are highlighted. The book discusses the most common metamorphic rock types, their nomenclature, structure and graphical representation of their mineral assemblages. Part I defines basic principles of metamorphism, introduces metamorphic processes, geologic thermometry and barometry and defines metamorphic grade. Part II presents in a systematic way mineralogical changes and assemblages found in the most common types of metamorphic rocks. The computation of diagrams is based on recent advances in quantitative petrology and geochemistry. An extensive bibliography, including the key contributions and classic papers in the field, make it an invaluable source book for graduate students and professional geologists.
Optical Mineralogy
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Author : Colin D Gribble
language : en
Publisher: CRC Press
Release Date : 2003-09-02
Optical Mineralogy written by Colin D Gribble and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-09-02 with Science categories.
Covering theory and practice, this wide-ranging introductory textbook covers the main optical properties of rock-forming minerals that can be recognized under the polarizing microscope. The authors elucidate the basic elements of microscopy, the theory of light transmission through translucent minerals, and the properties of light reflected from opaque minerals. They discuss properties of the main silicate and non-silicate minerals, both translucent and opaque and how the optical properties may be used to identify a mineral. The book features many diagrams, summary tables, and four pages of color illustrations, making it an ideal textbook as well as an authoritative reference.
High Pressure Geochemistry Mineral Physics
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Author : S. Mitra
language : en
Publisher: Elsevier
Release Date : 2004-12-11
High Pressure Geochemistry Mineral Physics written by S. Mitra and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-11 with Science categories.
Significant achievements have been made at the cross-roads of physics and planetary science. In the second half of the twentieth century, the discipline of planetary sciences has witnessed three major episodes which have revolutionized its approach and content: (i) the plate-tectonic theory, (ii) human landing and discoveries in planetary astronomy and (iii) the extraordinary technical advancement in high P-T studies, which have been abetted by a vast improvement in computational methods. Using these new computational methods, such as first principles including ab initio models, calculations have been made for the electronic structure, bonding, thermal EOS, elasticity, melting, thermal conductivity and diffusivity. In this monograph, the boundaries of the definitions of a petrologist, geochemist, geophysicist or a mineralogist have been willfully eliminated to bring them all under the spectrum of "high-pressure geochemistry" when they deal with any material (quintessentially a chemical assemblage) - terrestrial or extraterrestrial - under the conditions of high-pressure and temperature. Thus, a petrologist using a spectrometer or any instrument for high-pressure studies of a rock or a mineral, or a geochemist using them for chemical synthesis and characterization, is better categorized as a "high-pressure geochemist" rather than any other kind of disciplinarian. The contents of this monograph bring together, under one cover, apparently disparate disciplines like solid-earth geophysics and geochemistry as well as material science and condensed-matter physics to present a thorough overview of high pressure geochemistry. Indeed, such interdisciplinary activities led to the discovery of new phenomena such as high P-T behaviour in metal oxides (e.g. Mott transition), novel transitions such as amorphization, changes in order-disorder in crystals and the anomalous properties of oxide melts.
Earth Materials
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Author : Cornelis Klein
language : en
Publisher: Cambridge University Press
Release Date : 2016-12-15
Earth Materials written by Cornelis Klein and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-15 with Nature categories.
Designed specifically for one-semester courses, this beautifully illustrated textbook explains the key concepts in mineralogy and petrology.
Geochemistry
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Author : Harry Y. McSween
language : en
Publisher: Columbia University Press
Release Date : 2003-11-19
Geochemistry written by Harry Y. McSween and has been published by Columbia University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-11-19 with Science categories.
Written expressly for undergraduate and graduate geologists, this book focuses on how geochemical principles can be used to solve practical problems. The attention to problem-solving reflects the authors'belief that showing how theory is useful in solving real-life problems is vital for learning. The book gives students a thorough grasp of the basic principles of the subject, balancing the traditional equilibrium perspective and the kinetic viewpoint. The first half of the book considers processes in which temperature and pressure are nearly constant. After introductions to the laws of thermodynamics, to fundamental equations for flow and diffusion, and to solution chemistry, these principles are used to investigate diagenesis, weathering, and natural waters. The second half of the book applies thermodynamics and kinetics to systems undergoing changes in temperature and pressure during magmatism and metamorphism. This revised edition incorporates new geochemical discoveries as examples of processes and pathways, with new chapters on mineral structure and bonding and on organic matter and biomarkers. Each chapter has worked problems, and the authors assume that the student has had a year of college-level chemistry and a year of calculus. Praise for the first edition "A truly modern geochemistry book.... Very well written and quite enjoyable to read.... An excellent basic text for graduate level instruction in geochemistry." —Journal of Geological Education "An up-to-date, broadly conceived introduction to geochemistry.... Given the recent flowering of geochemistry as an interdisciplinary science, and given the extent to which it now draws upon the fundamentals of thermodynamics and kinetics to understand earth and planetary processes, this timely and rigorous [book] is welcome indeed." —Geochimica et Cosmochimica Acta