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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.

Earth sciences. --- Mineralogy. --- Earth Sciences. --- Metasomatism (Mineralogy) --- Metasomatosis --- Mineralogy --- Petrology --- Physical geology --- Crystallography --- Minerals

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Igneous rocks --- Roches ignées --- Inclusions --- Earth (Planet) --- Terre --- Mantle --- Manteau --- Rocks, Igneous --- GG Cartography --- Metasomatism (Mineralogy) --- Metasomatosis --- Mineralogy --- Petrology --- Eruptive rocks --- Igneous petrology --- Petrology, Igneous --- Rocks, Eruptive --- Rocks --- Inclusions. --- Earth --- Mantle. --- Roches ignées --- Enclaves in igneous rocks --- Inclusions in igneous rocks --- Xenoliths --- Internal structure

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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.

Chemical transformation. --- Metasomatism. --- Thermodynamic modeling. --- Geology --- Earth & Environmental Sciences --- Mineralogy --- Metasomatism (Mineralogy) --- Mineralogy. --- Metasomatosis --- Earth sciences. --- Geochemistry. --- Geophysics. --- Earth Sciences. --- Geophysics/Geodesy. --- Physical geology --- Crystallography --- Minerals --- Petrology --- Physical geography. --- Geography --- Chemical composition of the earth --- Chemical geology --- Geological chemistry --- Geology, Chemical --- Chemistry --- Earth sciences --- Geological physics --- Terrestrial physics --- Physics