Details of ES3202 (Spring 2013)
| Level: 3 | Type: Theory | Credits: 3.0 |
| Course Code | Course Name | Instructor(s) |
|---|---|---|
| ES3202 | Igneous and Metamorphic Petrology | Ravikant Vadlamani |
| Syllabus |
|---|
| This course deals with mineralogical and textural changes that occur in response to elevated temperatures and pressures that rock experiences during deep burial within the earths crust. Additionally, make students understand petrogenesis of igneous rocks (primary rocks) through interpretation of field relations, mineralogy and textures and use of geochemistry and phase diagrams from a Plate Tectonics perspective
Course Content Composition and Classification of magmatic rocks: a. Mineral composition, chemical composition, classification of magmatic rocks: a. QAPF and the TAS schemes b. Using trace elements c. Using radiogenic and stable isotopes. Crystal-Melt equilibria: a. Melting relations, phase relations in binary systems (Diopside-Anorthite; Olivine-quartz), basalt magmas. b. Crystal-melt equilibria of anhydrous and hydrous phases (Olivine, pyroxene, micas & amphibole). c. Geothrmobarometers in magmatic systems. Chemical dynamics of melts and crystals: Viscosity, chemical diffusion, diffusion of heat, crystallization and secondary magmatic processes. Kinetic paths and fabrics of magmatic rocks: a. Crystallization, grain size and textures. b. Fabrics related to crystallization paths, fabrics related to equilibrium, exsolution of volatiles . c. Volcaniclastic rocks and processes. Magma generation: a. Melting of rocks and changes in P,T, X. b. Mantle source rocks, generation of magma in mantle peridotite, c. subarc mantle melting d. metasomatically enriched mantle peridotite and e. continental crust. Differentiation of magma: a. Variation diagrams, closed and open systems b. Differentiation in basaltic magmas and the calc-alkaline trend. Petrotectonic Associations-Plate tectonics and igneous petrogenesis: a. Oceanic spreading centers and MORB genesis b. Mantle plumes and flood basalt plateaus, Arc magmatism (oceanic, ophiolitic, calc-alkaline continental arcs) c. Continental collision zones d. Continental rift zones e. Anorogenic magmatism. Metamorphism definition, types, agents, Metamorphic rocks Structures and textures. Metamorphic reactions Types and their driving forces. Reaction rates and their controls, Equilibrium in metamorphism; causes of metastable persistence of metamorphic rocks. Zonal metamorphism and isograds. Metamorphic facies definition, classification and mineral assemblages of pelitic, basic and calcareous bulk composition in response to progressive metamorphism. Metamorphic facies series and paired belts. Relation between metamorphism and deformation. Metamorphic reactions involving solid solutions and mixed volatiles, characterization of metamorphic fluid. High-grade metamorphism. Origin of granulites and eclogites. Melting in metamorphism. Origin of migmatite. P-T-time evolution of metamorphic terrains, relations with tectonism and crustal evolution. mineralogy and textures and use of geochemistry and phase diagrams from a Plate Tectonics perspective Course Content Composition and Classification of magmatic rocks: a. Mineral composition, chemical composition, classification of magmatic rocks: a. QAPF and the TAS schemes b. Using trace elements c. Using radiogenic and stable isotopes. Crystal-Melt equilibria: a. Melting relations, phase relations in binary systems (Diopside-Anorthite; Olivine-quartz), basalt magmas. b. Crystal-melt equilibria of anhydrous and hydrous phases (Olivine, pyroxene, micas & amphibole). c. Geothrmobarometers in magmatic systems. Chemical dynamics of melts and crystals: Viscosity, chemical diffusion, diffusion of heat, crystallization and secondary magmatic processes. Kinetic paths and fabrics of magmatic rocks: a. Crystallization, grain size and textures. b. Fabrics related to crystallization paths, fabrics related to equilibrium, exsolution of volatiles . c. Volcaniclastic rocks and processes. Magma generation: a. Melting of rocks and changes in P,T, X. b. Mantle source rocks, generation of magma in mantle peridotite, c. subarc mantle melting d. metasomatically enriched mantle peridotite and e. continental crust. Differentiation of magma: a. Variation diagrams, closed and open systems b. Differentiation in basaltic magmas and the calc-alkaline trend. Petrotectonic Associations-Plate tectonics and igneous petrogenesis: a. Oceanic spreading centers and MORB genesis b. Mantle plumes and flood basalt plateaus, Arc magmatism (oceanic, ophiolitic, calc-alkaline continental arcs) c. Continental collision zones d. Continental rift zones e. Anorogenic magmatism. Metamorphism definition, types, agents, Metamorphic rocks Structures and textures. Metamorphic reactions Types and their driving forces. Reaction rates and their controls, Equilibrium in metamorphism; causes of metastable persistence of metamorphic rocks. Zonal metamorphism and isograds. Metamorphic facies definition, classification and mineral assemblages of pelitic, basic and calcareous bulk composition in response to progressive metamorphism. Metamorphic facies series and paired belts. Relation between metamorphism and deformation. Metamorphic reactions involving solid solutions and mixed volatiles, characterization of metamorphic fluid. High-grade metamorphism. Origin of granulites and eclogites. Melting in metamorphism. Origin of migmatite. P-T-time evolution of metamorphic terrains, relations with tectonism and crustal evolution. |
| References |
|---|
| 1. Igneous Petrogenesis by Majorie Wilson
2. Using geochemical data by HR Rollinson 3. Principles of Igneous and Metamorphic Petrology by AR Philpots & J Ague (second edition) 4. Principles of Igneous and Metamorphic Petrology by John Winter (second edition) 5. Igneous and Metamorphic Petrology by MG Best (second edition) |
Course Credit Options
| Sl. No. | Programme | Semester No | Course Choice |
|---|---|---|---|
| 1 | IP | 2 | Core |
| 2 | IP | 4 | Elective |
| 3 | MS | 6 | Core |
| 4 | RS | 1 | Elective |