Physical Properties and Thermodynamic Behaviour of Minerals

Download Physical Properties and Thermodynamic Behaviour of Minerals PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9400928912
Total Pages : 724 pages
Book Rating : 4.4/5 (9 download)

DOWNLOAD NOW!


Book Synopsis Physical Properties and Thermodynamic Behaviour of Minerals by : Ekhard K.H. Salje

Download or read book Physical Properties and Thermodynamic Behaviour of Minerals written by Ekhard K.H. Salje and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role played by earth sciences in the scientific community has changed considerably during this century. Since the revolutionary discoveries of global processes such as plate tectonics, there has been an increasing awareness of just how fundamental many of the mechanisms which dominate in these processes depend on the physical properties of the materials of which the earth is made. One of the prime objectives of mineral sciences is now to understand and predict these properties in a truly quantitative manner. The macroscopic properties which are of most immediate interest in this context fall within the conventional definitions of thermodynamics, magnetism, elasticity, dielectric susceptibilities, conductivity etc. These properties reflect the microscopic contributions, at an atomistic level, of harmonic and anharmonic lattice vibrations, ionic and electronic transport as well as a great variety of ordering and clustering phenomena. The advances made by solid state physicists and chemists in defining the underlying phenomena lnvolved in the thermal evolution of materials have stimulated major new research initiatives within the Earth Sciences. Earth Scientists have combined to form active groups within the wider community of solid state and materials scientists working towards a better understanding of those physical processes which govern not only the behaviour of simple model compounds but also that of complex materials like minerals. Concomitant with this change in direction has come an increasing awareness of the need to use the typical working tools of other disciplines.

Structural and Magnetic Phase Transitions in Minerals

Download Structural and Magnetic Phase Transitions in Minerals PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461238625
Total Pages : 255 pages
Book Rating : 4.4/5 (612 download)

DOWNLOAD NOW!


Book Synopsis Structural and Magnetic Phase Transitions in Minerals by : S. Ghose

Download or read book Structural and Magnetic Phase Transitions in Minerals written by S. Ghose and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume in Advances in Physical Geochemistry presents the latest synthesis of theory and experimental data pertaining to structural and magnetic phase transitions in a variety of geochemically important minerals. The book is the first to cover the impact of this rapidly progressing area of solid state physics in earth sciences and reflects its growing significance for mineralogy and petrology.

Phase Transitions in Materials

Download Phase Transitions in Materials PDF Online Free

Author :
Publisher : Cambridge University Press
ISBN 13 : 1107067243
Total Pages : 589 pages
Book Rating : 4.1/5 (7 download)

DOWNLOAD NOW!


Book Synopsis Phase Transitions in Materials by : Brent Fultz

Download or read book Phase Transitions in Materials written by Brent Fultz and published by Cambridge University Press. This book was released on 2014-08-14 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: A clear, concise and rigorous textbook covering phase transitions in the context of advances in electronic structure and statistical mechanics.

Treatise on Geophysics, Volume 2

Download Treatise on Geophysics, Volume 2 PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 0444535764
Total Pages : 657 pages
Book Rating : 4.4/5 (445 download)

DOWNLOAD NOW!


Book Synopsis Treatise on Geophysics, Volume 2 by : G David Price

Download or read book Treatise on Geophysics, Volume 2 written by G David Price and published by Elsevier. This book was released on 2010-04-20 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Geophysics: Mineral Physics, Volume 2, provides a comprehensive review of the current state of understanding of mineral physics. Each chapter demonstrates the significant progress that has been made in the understanding of the physics and chemistry of minerals, and also highlights a number of issues which are still outstanding or that need further work to resolve current contradictions. The book first reviews the current status of our understanding of the nature of the deep Earth. These include the seismic properties of rocks and minerals; problems of the lower mantle and the core-mantle boundary; and the state of knowledge on mantle chemistry and the nature and evolution of the core. The discussions then turn to the theory underlying high-pressure, high-temperature physics, and the major experimental methods being developed to probe this parameter space. The remaining chapters explain the specific techniques for measuring elastic and acoustic properties, electronic and magnetic properties, and rheological properties; the nature and origin of anisotropy in the Earth; the properties of melt; and the magnetic and electrical properties of mantle phases. - Self-contained volume starts with an overview of the subject then explores each topic with in depth detail - Extensive reference lists and cross references with other volumes to facilitate further research - Full-color figures and tables support the text and aid in understanding - Content suited for both the expert and non-expert

Mantle Convection and Surface Expressions

Download Mantle Convection and Surface Expressions PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119528615
Total Pages : 32 pages
Book Rating : 4.1/5 (195 download)

DOWNLOAD NOW!


Book Synopsis Mantle Convection and Surface Expressions by : Hauke Marquardt

Download or read book Mantle Convection and Surface Expressions written by Hauke Marquardt and published by John Wiley & Sons. This book was released on 2021-07-07 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary perspective on the dynamic processes occurring in Earth's mantle The convective motion of material in Earth's mantle, powered by heat from the deep interior of our planet, drives plate tectonics at the surface, generating earthquakes and volcanic activity. It shapes our familiar surface landscapes, and also stabilizes the oceans and atmosphere on geologic timescales. Mantle Convection and Surface Expressions brings together perspectives from observational geophysics, numerical modelling, geochemistry, and mineral physics to build a holistic picture of the deep Earth. It explores the dynamic processes occurring in the mantle as well as the associated heat and material cycles. Volume highlights include: Perspectives from different scientific disciplines with an emphasis on exploring synergies Current state of the mantle, its physical properties, compositional structure, and dynamic evolution Transport of heat and material through the mantle as constrained by geophysical observations, geochemical data and geodynamic model predictions Surface expressions of mantle dynamics and its control on planetary evolution and habitability The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.

Phase Transitions in Ferroelastic and Co-elastic Crystals

Download Phase Transitions in Ferroelastic and Co-elastic Crystals PDF Online Free

Author :
Publisher : Cambridge University Press
ISBN 13 : 9780521429368
Total Pages : 304 pages
Book Rating : 4.4/5 (293 download)

DOWNLOAD NOW!


Book Synopsis Phase Transitions in Ferroelastic and Co-elastic Crystals by : E. K. Salje

Download or read book Phase Transitions in Ferroelastic and Co-elastic Crystals written by E. K. Salje and published by Cambridge University Press. This book was released on 1993-04-22 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook describes the fundamental principles of structural phase transitions in materials in an easily understandable form, suitable for both undergraduate and graduate students.

Theoretical and Computational Methods in Mineral Physics

Download Theoretical and Computational Methods in Mineral Physics PDF Online Free

Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 150150844X
Total Pages : 504 pages
Book Rating : 4.5/5 (15 download)

DOWNLOAD NOW!


Book Synopsis Theoretical and Computational Methods in Mineral Physics by : Renata M. Wentzcovitch

Download or read book Theoretical and Computational Methods in Mineral Physics written by Renata M. Wentzcovitch and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 71 of Reviews in Mineralogy and Geochemistry represents an extensive review of the material presented by the invited speakers at a short course on Theoretical and Computational Methods in Mineral Physics held prior (December 10-12, 2009) to the Annual fall meeting of the American Geophysical Union in San Francisco, California. The meeting was held at the Doubletree Hotel & Executive Meeting Center in Berkeley, California. Contents: Density functional theory of electronic structure: a short course for mineralogists and geophysicists The Minnesota density functionals and their applications to problems in mineralogy and geochemistry Density-functional perturbation theory for quasi-harmonic calculations Thermodynamic properties and phase relations in mantle minerals investigated by first principles quasiharmonic theory First principles quasiharmonic thermoelasticity of mantle minerals An overview of quantum Monte Carlo methods Quantum Monte Carlo studies of transition metal oxides Accurate and efficient calculations on strongly correlated minerals with the LDA+U method: review and perspectives Spin-state crossover of iron in lower-mantle minerals: results of DFT+U investigations Simulating diffusion Modeling dislocations and plasticity of deep earth materials Theoretical methods for calculating the lattice thermal conductivity of minerals Evolutionary crystal structure prediction as a method for the discovery of minerals and materials Multi-Mbar phase transitions in minerals Computer simulations on phase transitions in ice Iron at Earth’s core conditions from first principles calculations First-principles molecular dynamics simulations of silicate melts: structural and dynamical properties Lattice dynamics from force-fields as a technique for mineral physics An efficient cluster expansion method for binary solid solutions: application to the halite-silvite, NaCl-KCl, system Large scale simulations Thermodynamics of the Earth’s mantle

Treatise on Geophysics

Download Treatise on Geophysics PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 0444538038
Total Pages : 5604 pages
Book Rating : 4.4/5 (445 download)

DOWNLOAD NOW!


Book Synopsis Treatise on Geophysics by :

Download or read book Treatise on Geophysics written by and published by Elsevier. This book was released on 2015-04-17 with total page 5604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Geophysics, Second Edition, is a comprehensive and in-depth study of the physics of the Earth beyond what any geophysics text has provided previously. Thoroughly revised and updated, it provides fundamental and state-of-the-art discussion of all aspects of geophysics. A highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Additional features include new material in the Planets and Moon, Mantle Dynamics, Core Dynamics, Crustal and Lithosphere Dynamics, Evolution of the Earth, and Geodesy volumes. New material is also presented on the uses of Earth gravity measurements. This title is essential for professionals, researchers, professors, and advanced undergraduate and graduate students in the fields of Geophysics and Earth system science. Comprehensive and detailed coverage of all aspects of geophysics Fundamental and state-of-the-art discussions of all research topics Integration of topics into a coherent whole

ENERGY MODELLING IN MINERALS

Download ENERGY MODELLING IN MINERALS PDF Online Free

Author :
Publisher : The Mineralogical Society of Great Britain and Ireland
ISBN 13 : 9634635660
Total Pages : 430 pages
Book Rating : 4.6/5 (346 download)

DOWNLOAD NOW!


Book Synopsis ENERGY MODELLING IN MINERALS by : C.M. Gramaccioli

Download or read book ENERGY MODELLING IN MINERALS written by C.M. Gramaccioli and published by The Mineralogical Society of Great Britain and Ireland. This book was released on 2002-01-01 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nothing provided

Transformation Processes in Minerals

Download Transformation Processes in Minerals PDF Online Free

Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1501509152
Total Pages : 372 pages
Book Rating : 4.5/5 (15 download)

DOWNLOAD NOW!


Book Synopsis Transformation Processes in Minerals by : Simon A. Redfern

Download or read book Transformation Processes in Minerals written by Simon A. Redfern and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 39 of Reviews in Mineralogy and Geochemistry about Transformation Processes in Minerals summarises the current state of the art. The selection of transformation processes covered here is by no means comprehensive, but represents a coherent view of some of the most important processes which occur specifically in minerals. Contents: Rigid unit modes in framework structures Strain and elasticity at structural phase transitions in minerals Mesoscopic twin patterns in ferroelastic and co-elastic minerals High-pressure structural phase transitions Order-disorder phase transitions Phase transformations induced by solid solution Magnetic transitions in minerals NMR spectroscopy of phase transitions in minerals Insights into phase transformations from Mössbauer spectroscopy Hard mode spectroscopy of phase transitions Synchrotron studies of phase transformations Radiation-induced amorphization

Carbon in Earth's Interior

Download Carbon in Earth's Interior PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119508231
Total Pages : 373 pages
Book Rating : 4.1/5 (195 download)

DOWNLOAD NOW!


Book Synopsis Carbon in Earth's Interior by : Craig E. Manning

Download or read book Carbon in Earth's Interior written by Craig E. Manning and published by John Wiley & Sons. This book was released on 2020-04-03 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon in Earth's fluid envelopes - the atmosphere, biosphere, and hydrosphere, plays a fundamental role in our planet's climate system and a central role in biology, the environment, and the economy of earth system. The source and original quantity of carbon in our planet is uncertain, as are the identities and relative importance of early chemical processes associated with planetary differentiation. Numerous lines of evidence point to the early and continuing exchange of substantial carbon between Earth's surface and its interior, including diamonds, carbon-rich mantle-derived magmas, carbonate rocks in subduction zones and springs carrying deeply sourced carbon-bearing gases. Thus, there is little doubt that a substantial amount of carbon resides in our planet's interior. Yet, while we know it must be present, carbon's forms, transformations and movements at conditions relevant to the interiors of Earth and other planets remain uncertain and untapped. Volume highlights include: - Reviews key, general topics, such as carbonate minerals, the deep carbon cycle, and carbon in magmas or fluids - Describes new results at the frontiers of the field with presenting results on carbon in minerals, melts, and fluids at extreme conditions of planetary interiors - Brings together emerging insights into carbon's forms, transformations and movements through study of the dynamics, structure, stability and reactivity of carbon-based natural materials - Reviews emerging new insights into the properties of allied substances that carry carbon, into the rates of chemical and physical transformations, and into the complex interactions between moving fluids, magmas, and rocks to the interiors of Earth and other planets - Spans the various chemical redox states of carbon, from reduced hydrocarbons to zero-valent diamond and graphite to oxidized CO2 and carbonates - Captures and synthesizes the exciting results of recent, focused efforts in an emerging scientific discipline - Reports advances over the last decade that have led to a major leap forward in our understanding of carbon science - Compiles the range of methods that can be tapped tap from the deep carbon community, which includes experimentalists, first principles theorists, thermodynamic modelers and geodynamicists - Represents a reference point for future deep carbon science research Carbon in Planetary Interiors will be a valuable resource for researchers and students who study the Earth's interior. The topics of this volume are interdisciplinary, and therefore will be useful to professionals from a wide variety of fields in the Earth Sciences, such as mineral physics, petrology, geochemistry, experimentalists, first principles theorists, thermodynamics, material science, chemistry, geophysics and geodynamics.

Post-Perovskite

Download Post-Perovskite PDF Online Free

Author :
Publisher : American Geophysical Union
ISBN 13 :
Total Pages : 304 pages
Book Rating : 4.:/5 (318 download)

DOWNLOAD NOW!


Book Synopsis Post-Perovskite by : Kei Hirose

Download or read book Post-Perovskite written by Kei Hirose and published by American Geophysical Union. This book was released on 2007-01-09 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book summarizes findings on the newly discovered "post-perovskite phase transition" in the lower mantle that may explain the nature of the D" layer and has important implications for many fields in solid Earth geophysics, such as mineral physics, seismology, geodynamics, and geochemistry. It is based on a series of conferences on the Earth's mantle and deep interior held in 2004 and 2005. Topics discussed including the following. * Rapid progress in the study of Earth's lowermost mantle during the first three years after the discovery of post-perovskite. * The synergistic, multidisciplinary analysis of post-perovskite enabled by recent advances in experimental and theoretical methods, seismic data analyses, and computational geodynamics. * The insights provided into the major internal thermo-chemical boundary layer of the Earth, offering advanced understanding that mirrors that for the lithosphere over the past 30 years. * The exploration of the dynamical effect of post-perovskite phase change that occurs right above the CMB with extremely steep Clapeyron slope, whose magnitude is three to four times greater than for upper-mantle phase transitions. * The summary of remaining unsolved problems and future studies on the post-perovskite and lowermost mantle. Post-Perovskite: The Last Mantle Phase Transition presents the full span of post-perovskite attributes, including characterization by experimental and theoretical mineral physics, seismological interpretations, and dynamical considerations. This book illustrates why the last silicate phase transition in the mantle is eliciting such excitement and concentrated effort."--Publisher's website.

Microscopic Properties and Processes in Minerals

Download Microscopic Properties and Processes in Minerals PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9780792359814
Total Pages : 670 pages
Book Rating : 4.3/5 (598 download)

DOWNLOAD NOW!


Book Synopsis Microscopic Properties and Processes in Minerals by : Kate Wright

Download or read book Microscopic Properties and Processes in Minerals written by Kate Wright and published by Springer Science & Business Media. This book was released on 1999-10-31 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the major developments in Earth Sciences in general, and mineralogy in particular, has been the growth of our understanding of the microscopic behaviour of the complex materials that make up the Earth. This has been made possible by advances in our ability to probe minerals at the atomic level, over a large range of pressure and temperature conditions. New experimental techniques include the use of scanning probe microscopies to investigate mineral surfaces, as well as the use of neutron scattering, nuclear spectroscopies and synchrotron radiation to investigate the bonding and structure of minerals. In addition, there have been major developments in computational methods so that it is now possible to calculate the electronic structure of many rock forming materials. The aim of this volume is to give a coherent survey of the latest developments in experimental and theoretical approaches to the study of microscopic propertie~ and processes in minerals. Chapters in the book cover a number of key themes in the mineral sciences such as the behaviour of minerals at extremes of pressure and temperature, ordering in complex silicates, mechanisms of water incorporation in mantle phases, the importance of reactions occurring at the mineral surface, and the ability of computational methods to provide useful, qualitative information on the bulk and surface properties of minerals. The background to several experimental techniques is covered in some detail with examples of relevance to the issues cited above.

Thermodynamics of the Earth and Planets

Download Thermodynamics of the Earth and Planets PDF Online Free

Author :
Publisher : Cambridge University Press
ISBN 13 : 1139497014
Total Pages : 723 pages
Book Rating : 4.1/5 (394 download)

DOWNLOAD NOW!


Book Synopsis Thermodynamics of the Earth and Planets by : Alberto Patiño Douce

Download or read book Thermodynamics of the Earth and Planets written by Alberto Patiño Douce and published by Cambridge University Press. This book was released on 2011-08-25 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides an intuitive yet mathematically rigorous introduction to the thermodynamics and thermal physics of planetary processes. It demonstrates how the workings of planetary bodies can be understood in depth by reducing them to fundamental physics and chemistry. The book is based on two courses taught by the author for many years at the University of Georgia. It includes 'Guided Exercise' boxes; end-of-chapter problems (worked solutions provided online); and software boxes (Maple code provided online). As well as being an ideal textbook on planetary thermodynamics for advanced students in the Earth and planetary sciences, it also provides an innovative and quantitative complement to more traditional courses in geological thermodynamics, petrology, chemical oceanography and planetary science. In addition to its use as a textbook, it is also of great interest to researchers looking for a 'one stop' source of concepts and techniques that they can apply to their research problems.

High Pressure Geochemistry & Mineral Physics

Download High Pressure Geochemistry & Mineral Physics PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 008045822X
Total Pages : 1271 pages
Book Rating : 4.0/5 (84 download)

DOWNLOAD NOW!


Book Synopsis High Pressure Geochemistry & Mineral Physics by : S. Mitra

Download or read book High Pressure Geochemistry & Mineral Physics written by S. Mitra and published by Elsevier. This book was released on 2004-12-11 with total page 1271 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Molecular Modeling Theory

Download Molecular Modeling Theory PDF Online Free

Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1501508725
Total Pages : 544 pages
Book Rating : 4.5/5 (15 download)

DOWNLOAD NOW!


Book Synopsis Molecular Modeling Theory by : Randall T. Cygan

Download or read book Molecular Modeling Theory written by Randall T. Cygan and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 42 of Reviews in Mineralogy and Geochemistry covers the Applications in the Geosciences via Molecular Modeling Theory. We hope the content of this review volume will help the interested reader to quickly develop an appreciation for the fundamental theories behind the molecular modeling tools and to become aware of the limits in applying these state-of-the-art methods to solve geosciences problems. The review chapters in this volume were the basis for a short course on molecular modeling theory jointly sponsored by the Geochemical Society (GS) and the Mineralogical Society of America (MSA) May 18-20, 2001 in Roanoke, Virginia which was held prior to the 2001 Goldschmidt Conference in nearby Hot Springs, Virginia.

The Earth's Lower Mantle

Download The Earth's Lower Mantle PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3319556843
Total Pages : 340 pages
Book Rating : 4.3/5 (195 download)

DOWNLOAD NOW!


Book Synopsis The Earth's Lower Mantle by : Felix V. Kaminsky

Download or read book The Earth's Lower Mantle written by Felix V. Kaminsky and published by Springer. This book was released on 2017-05-22 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the first overview of the composition and structure of the Earth’s lower mantle. The first part focuses on the study of lower-mantle minerals, identified as inclusions in diamonds from different regions of the world. Three associations are established among the lower-mantle minerals: ultramafic, mafic, and carbonatic. The carbonatic association is of particular interest because it characterizes the media of natural diamond formation. In turn, the second part analyzes the structure of the lower mantle, revealing its heterogeneous composition. It is based on the results of experiments demonstrating phase transitions in lower-mantle minerals, and on seismological data. Deep-seated earthquakes point to the presence within the lower mantle of numerous seismic boundaries caused by mineral structure transitions. In closing, the last part of the book compares observed data with experimental data, highlighting several discrepancies that indicate Earth may have a more complex planetary history than previously assumed, and examining its primarily non-chondritic composition.