Igneous Petrogenesis

One Magmatism and global tectonic processes.- One Relation of present-day magmatism to global tectonic processes.- 1.1 Introduction.- 1.2 Characteristic magma series associated with specific tectonic settings.- Further reading.- Two Geochemkal characteristics of igneous rocks as petrogenetic indicators.- 2.1 Introduction.- 2.2 Chemical analysis of igneous rocks.- 2.3 Chemical variation diagrams.- 2.4 Geochemical characteristics of primary magmas.- 2.5 Isotopes as petrogenetic indicators.- 2.6 Geochemical criteria for the identification of the palaeotectonic setting of ancient volcanic sequences.- Further reading.- Three Partial melting processes in the Earth's upper mantle.- 3.1 Introduction.- 3.2 The physical state of the upper mantle.- 3.3 Chemical composition and mineralogy of the upper mantle.- 3.4 Partial melting processes in the upper mantle.- 3.5 The basaltic magma spectrum in relation to partial melting processes.- 3.6 Segregation and ascent of magma.- Further reading.- Four Processes which modify the composition of primary magmas.- 4.1 Introduction.- 4.2 Convection and mixing in magma chambers.- 4.3 Fractional crystallization.- 4.4 Crustal contamination.- 4.5 Zone refining.- 4.6 Liquid immiscibility.- 4.7 Gaseous transfer processes.- Further reading.- Two Magmatism at constructive plate margins.- Five Mid-ocean ridges.- 5.1 Introduction.- 5.2 Simplified petrogenetic model.- 5.3 Nature of the oceanic crust.- 5.4 Structure of mid-ocean ridges.- 5.5 Heat flow and metamorphism.- 5.6 Convection systems at constructive plate margins.- 5.7 Partial melting processes.- 5.8 Magma storage and release.- 5.9 Petrography of mid-ocean ridge basalts.- 5.10 Chemical composition of erupted magmas.- 5.11 Detailed petrogenetic model.- Further reading.- Three Magmatism at destructive plate margins.- Six Island arcs.- 6.1 Introduction.- 6.2 Simplified petrogenetic model.- 6.3 Structure of island arcs.- 6.4 Earthquakes and magma genesis.- 6.5 Thermal structure and partial melting processes.- 6.6 Segregation, ascent and storage of magma.- 6.7 Characteristic magma series.- 6.8 Spatial and temporal variations in island-arc magmatism.- 6.9 Surface volcanic features.- 6.10 Petrography of island-arc volcanic rocks.- 6.11 Chemical composition of erupted magmas.- 6.12 Detailed petrogenetic model.- Further reading.- Seven Active continental margins.- 7.1 Introduction.- 7.2 Simplified petrogenetic model.- 7.3 The structure of active continental margins.- 7.4 Thermal structure and partial melting processes.- 7.5 Magma storage in the crust.- 7.6 Petrographic characteristics of the volcanic and plutonic rocks.- 7.7 Chemical composition of the magmas.- 7.8 Detailed petrogenetic model.- Further reading.- Eight Back-arc basins.- 8.1 Introduction.- 8.2 Simplified petrogenetic model.- 8.3 Petrography of the volcanic rocks.- 8.4 Chemical composition of the erupted magmas.- 8.5 Detailed petrogenetic model.- Further reading.- Four Magmatism within plates.- Nine Oceanic islands.- 9.1 Introduction.- 9.2 Simplified petrogenetic model.- 9.3 Crustal structure of oceanic islands.- 9.4 Partial melting processes.- 9.5 High-level magma storage.- 9.6 Petrography of oceanic-island volcanic rocks.- 9.7 Chemical composition of erupted magmas.- 9.8 Detailed petrogenetic model.- Further reading.- Ten Continental tholeiitic flood basalt provinces.- 10.1 Introduction.- 10.2 Simplified petrogenetic model.- 10.3 Crustal structure and magma storage reservoirs.- 10.4 Crustal contamination of magmas.- 10.5 Petrography of the volcanic rocks.- 10.6 Chemical composition of the erupted magmas.- 10.7 Detailed petrogenetic model.- Further reading.- Eleven Continental rift zone magmatism.- 11.1 Introduction.- 11.2 Simplified petrogenetic model.- 11.3 Crust and upper mantle structure.- 11.4 Petrography of the volcanic rocks.- 11.5 Chemical composition of the erupted magmas.- 11.6 Detailed petrogenetic model.- Further reading.- Twelve Potassic magmatism within continental plates.- 12.1 Introduction.- 12.2 Simplified petrogenetic model.- 12.3 Partial melting processes in the upper mantle.- 12.4 Petrographic characteristics of kimberlites and ultrapotassic rocks.- 12.5 Chemical composition of kimberlites and ultrapotassic rocks.- 12.6 Detailed petrogenetic model.- Further reading.- Approximate ranges of D values for the partitioning of trace elements between the common rock-forming minerals and liquids of basic-intermediate composition.