Metasomatic Textures in Granites
Metasomatic Textures in Granites: Evidence from Petrographic Observation
Springer | Mineralogy | June 21, 2016 | ISBN-10: 9811006652 | 129 pages | pdf | 20.98 mb
Authors: Rong, Jiashu, Wang, Fenggang
Proposes a new idea to explain metasomatic textures and their formation mechanism in granite
Illustrates metasomatic mechanisms and superimposed metasomatic processes clearly with a series of color microphotos taken with quartz plate under crossed polars
Provides details of the origins of many phenomena, such as clear albite rim, intergranular swapped albite, K-feldspathization, quartzification, muscovitization, beryllization, myrmekite, small platy albite, perthitic albite and K-feldspar megacryst
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.
Number of Illustrations and Tables
34 b/w illustrations, 179 illustrations in colour
Jointly published with Science Press Ltd., Beijing, China
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