Author: S. S. Augustithis
Publisher: Elsevier Publishing Company
ISBN:
Category : Nature
Languages : en
Pages : 248
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Book Description
Hardbound. This monograph is essentially an atlas, illustrated by 375 figures (mainly photomicrographs) presenting the most common and significant textures of the metamorphic-metasomatic rocks from many important regions of the world. The book as a whole covers the wide spectrum of metamorphic processes and the basic relation of metamorphic processes and textures is emphasised.Metamorphism-metasomatism is seen as an integral system where every textural intergrowth is the result of a particular process. In addition, principles of comparative anatomy (widely accepted in bioscience) are applied in metamorphic petrology and conclusions are reached inductively, based on textural analysis. The comparative anatomy approach aims at finding ideas and principles that will attempt to unify diverse, textural patterns of an evolving system (as rocks are) and integrate them into concepts of wide application.Emphasis is put on the significance of crystalloblaste
Author: Stylianos Augustithis
Publisher: Walter de Gruyter
ISBN: 3110895501
Category : Science
Languages : en
Pages : 676
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Author: Jiashu Rong
Publisher: Springer
ISBN: 9789811092237
Category : Science
Languages : en
Pages : 144
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Book Description
Based on hundreds of thin sections from granite in China, this book introduces metasomatic textures and their formation mechanism in granite. It also proposes that metasomatic textures can basically be classified into two patterns: hetero-oriented replacement and co-oriented replacement, according to the consistency of orientations of replacive and replaced minerals. The hetero-oriented albitization of K-feldspar is quite distinct from the co-oriented albitization of K-feldspar. They occur separately without transition, although both are generally referred to as albitization of K-feldspar.This unique granite atlas uses a series of color microphotos taken with a quartz plate under crossed polars to clearly illustrate metasomatic mechanisms and superimposed metasomatic processes. The origins of clear albite rim, intergranular swapped albite, K-feldspathization, quartzification, muscovitization, beryllization, myrmekite, small platy albite, perthitic albite, K-feldspar megacryst etc. are comprehensively discussed and explained. The book will appeal to teachers, researchers and students involved in igneous and metamorphic petrology.
Author: S. S. Augustithis
Publisher:
ISBN:
Category : Gneiss
Languages : en
Pages : 518
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Book Description
Author:
Publisher:
ISBN:
Category : Geochemistry
Languages : en
Pages : 280
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Book Description
Author: Daniel Harlov
Publisher: Springer Science & Business Media
ISBN: 3642283934
Category : Science
Languages : en
Pages : 804
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Book Description
Fluid-aided mass transfer and subsequent mineral re-equilibration are the two defining features of metasomatism and must be present in order for metamorphism to occur. Coupled with igneous and tectonic processes, metasomatism has played a major role in the formation of the Earth’s continental and oceanic crust and lithospheric mantle as well as in their evolution and subsequent stabilization. Metasomatic processes can include ore mineralization, metasomatically induced alteration of oceanic lithosphere, mass transport in and alteration of subducted oceanic crust and overlying mantle wedge, which has subsequent implications regarding mass transport, fluid flow, and volatile storage in the lithospheric mantle overall, as well as both regional and localized crustal metamorphism. Metasomatic alteration of accessory minerals such as zircon or monazite can allow for the dating of metasomatic events as well as give additional information regarding the chemistry of the fluids responsible. Lastly present day movement of fluids in both the lithospheric mantle and deep to mid crust can be observed utilizing geophysical resources such as electrical resistivity and seismic data. Such observations help to further clarify the picture of actual metasomatic processes as inferred from basic petrographic, mineralogical, and geochemical data. The goal of this volume is to bring together a diverse group of geologists, each of whose specialities and long range experience regarding one or more aspects of metasomatism during geologic processes, should allow them to contribute to a series of review chapters, which outline the basis of our current understanding of how metasomatism influences and helps to control both the evolution and stability of the crust and lithospheric mantle.
Author: B. W. D. Yardley
Publisher: Longman Scientific and Technical
ISBN:
Category : Nature
Languages : en
Pages : 132
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Book Description
Author: T.R.K. Chetty
Publisher: Elsevier
ISBN: 0128179791
Category : Science
Languages : en
Pages : 418
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Book Description
Atlas of Deformed and Metamorphosed Rocks from Proterozoic Orogens is a richly illustrated reference book featuring over 660 full-color field images of a range of lithologies from some Proterozoic terrains that were subjected to multiple events of magmatism, deformation, metamorphism, and metasomatism. The Atlas focuses on amphibolite to granulite facies lithologies and associated ma?c-ultrama?c rocks from Proterozoic orogens of India, Sri Lanka, Botswana, South Africa, East Antarctica, and Western Australia. Each chapter in the book begins with a brief review of geology, including deformation and metamorphic history, along with a regional geological map to help readers to visualize the ?eld observations in the relevant geological context. Each image is accompanied by a concise description providing location, lithology, structural fabric, possible deformational history, metamorphic features, partial melting, metasomatism, and other important crustal processes. This Atlas is an important source of information for a broad range of earth scientists, graduate and undergraduate students, researchers, academicians, and other professionals. This book will form a great treasure to those geoscientists who never had an opportunity to visit any of the Proterozoic orogenic belts. - Features over 660 full-color photographs representing typical lithologies and associated structural, metamorphic features, and other crustal processes from different Proterozoic orogens - Highlights the significance of field photographs in advancing new knowledge which may provide pathways for new research - Covers many important Proterozoic terranes of East Gondwana - Presents regional geologic maps from each Proterozoic orogen
Author:
Publisher:
ISBN:
Category : American literature
Languages : en
Pages : 2262
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Book Description
A world list of books in the English language.
Author:
Publisher:
ISBN:
Category : Bibliography, National
Languages : en
Pages : 2954
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