Granite Genesis: In-situ Melting And Crustal Evolution by Guo-Neng ChenGranite Genesis: In-situ Melting And Crustal Evolution by Guo-Neng Chen

Granite Genesis: In-situ Melting And Crustal Evolution

byGuo-Neng Chen, Rodney Grapes

Paperback | October 19, 2010

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This book reviews current ideas explaining the formation of granite in terms of melting, segregation, ascent and emplacement. It introduces an alternative hypothesis that granites are endogenic in that they essentially form and remain at melting sites in the middle-upper crust under conditions of abnormally high heat flow. The book highlights results of Chinese research over the last 30 years in English for the first time.
Title:Granite Genesis: In-situ Melting And Crustal EvolutionFormat:PaperbackDimensions:278 pagesPublished:October 19, 2010Publisher:Springer-Verlag/Sci-Tech/TradeLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:9048174694

ISBN - 13:9789048174690


Table of Contents

PrefaceAcknowledgements1 Introduction1.1 Rock genesis and its relationship to geosystems 1.1.1 Sedimentary rocks and continental geology1.1.2 Basaltic rocks and plate tectonics1.1.3 "Whence the granites"1.2 Granites, migmatites and granite problems1.2.1 Definitions1.2.1.1 Granite1.2.1.2 Migmatite: terminology and classification 1.2.2 Granite magma intrusion and its problems2 Crustal melting: experiments and conditions2.1 Introduction2.2 Mineral melting2.2.1 Topology of melting2.2.2 Muscovite dehydration melting2.2.3 Biotite dehydration melting2.2.4 Hornblende dehydration melting2.2.5 Biotite and hornblende melting in granitic rocks2.2.6 Other hydrous minerals2.2.7 Suprasolidus decompression dehydration reactions2.3 Rock melting - experimental evidence2.3.1 Melt compositions2.3.2 Restite compositions2.3.3 Rock solidi 2.3.4 Melt fraction2.3.5 Conclusion2.4 Structure and composition of the crust2.5 Water in the crust2.6 Crustal heat and partial melting 2.6.1 Introduction2.6.2 Thickened crust2.6.3 Burial of high radiogenic rocks2.6.4 Shear heating 2.6.5 Extension and removal of lithospheric mantle2.6.6 Intrusion of mafic magma2.6.7 Crustal thinning and "diapiric" decompression3. In-situ melting and intracrustal convection: granite magma layers3.1 Introduction3.1.1 Geophysical evidence for crustal melting3.1.1.1 Himalayas and Tibetan plateau3.1.1.2 The Andes 3.1.2 P-T conditions of granite, migmatite and granulite formation3.2 Crustal melting I: Initial melting and partial melt layer 3.2.1 Formation of a partial melt layer3.2.2 Development of a partial melt layer in heterogeneous crust 3.3 Crustal melting II: Convection and formation of magma layer3.3.1 Gravitational separation and formation of magma layer 3.3.2 Convection and development of magma layer3.3.3 Upward thickening of magma layer3.4 Compositional variation within magma layer3.5 Magma layer, granite layer and granite bodies 3.6 MI fluctuation (remelting) and granite sequence3.7 Conclusion4. Geological evidence for in-situ melting origin of granite layers4.1 Migmatite to granite4.1.1 Thor-Odin dome, Canada4.1.2 Broken Hill, Australia4.1.3 Mt. Stafford, Australia4.1.4 Trois Seigneurs massif, Pyrenees4.1.5 Velay Dome, France4.1.6 Coastal migmatite-granite zone, SE China4.1.7 Cooma and Murrumbidgee, Australia4.1.8 Optica grey gneiss, Canada4.2 Contact metamorphism 4.3 Xenoliths and mafic enclaves4.4 Granite layer and granite exposures4.5 Fluctuation of MI and downward younging granite sequence5. Differentiation of magma layer: geochemical considerations5.1 Introduction5.2 Compositional variation5.3 Strontium isotopes5.4 Oxygen isotopes5.5 Rare earth elements5.6 Summary6. Mineralisation related to in-situ granite formation6.1 Introduction6.2 Source of ore-forming elements6.3 Formation and evolution of ore-bearing fluid6.4 Types of mineral deposits6.4.1 Vein mineralisation6.4.2 Disseminated mineralisation 6.5 Age relationships6.6 Temperature distribution6.7 Formation and distribution of hydrothermal mineral deposits6.7.1 Precipitation of ore-forming elements6.7.2 Oxygen isotope evidence6.8 Mineralised depth horizons6.9 Mineralisation during elevated crustal temperatures6.10 Mineralisation during granite remelting6.10.1 Oxidation6.10.2 Uranium mineralisation6.11 Patterns of element redistribution and element fields 6.12 Summary  7. Heat source for crustal magma layers: tectonic models7.1 Introduction7.2 Crustal temperature disturbance related to plate convergence 7.3 Subduction and granite formation: western Pacific continental margin7.3.1 Introduction7.3.2 Tectonic framework of SE China and granite formation7.3.3 Tectonic model7.3.4 Multiple melting (remelting) and granite belts7.3.5 Summary7.4 Continental collision and granite formation: Tethys Belt7.4.1 Tectonic framework and granite distribution of Tibet plateau7.4.2 Tectonic phases in relation to subduction and collision7.4.3 Magma layers and plate convergence 7.5 Concluding statement8. Geological effects of crystallisation of a crustal granite magma layer: SE China 8.1 Fault-block basins8.1.1. Characteristics and distribution of Mesozoic basins 8.1.2. Basin formation8.1.3. Origin of red beds8.1.4. Summary8.2. Volcanism9. Material and element cycling of the continental crust and summary 9.1. Rock cycling of continental material9.2. Element cycling of the continental crust9.3. OverviewReferencesAppendix 1 Map showing provinces of SE ChinaAppendix 2 Results of experimental rock melting

Editorial Reviews

From the reviews:"Granite Genesis: In-Situ Melting and Crustal Evolution is a timely, well-structured, and enjoyable read. The authors provide a useful introduction to granite terminology and the 'granite debate' . The book benefits in continuity and style from having only two authors and is easy to read. . this book provides a valuable synthesis and is a great reference for all graduate students and professionals interested in granitic rocks, from their petrogenesis to emplacement mechanisms." (Victoria Pease, Geological Magazine, Vol. 146 (3), 2009)