Teacher
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ROMANO CLAUDIA
(syllabus)
Part one: the igneous process Use of main element geochemistry to model the origin and development of various types of magma. Binary Harker diagrams. Mass balance calculations. Partial melting, crystal fractionation and assimilation modeling. Geothermobarometers. Trace element geochemistry. Incompatibility and compatibility. Differentiation modeling use trace element partitioning. The use of isotopes(Rb / Sr, Sm / Nd, U / Pb) ) to understand the origin, age and development of various types of magma. Geochemical data processing. Magmatic activity in different tectonic environment, with emphasis on mid-ocean ridges and oceanic and continental subduction zones and on the origin of magmas in the mediterranean area.
Part two: the metamorphic process The metamorphic process and the controlling factors; gradients of metamorphism and geodynamic setting. Metamorphic rocks: structure, classification, chemical compositional classes. Metamorphic grade, index minerals and the main metamorphic facies. Mineralogical assemblage and metamorphic paragenesis. Phase diagrams, AFM and ACF projections. Mineral growth and deformation: criteria for pre-, syn- and post-kinematic crystallization. Thermobarometry: basic concepts, assumptions and limits; the main geothermometers and geobarometers; uncertainty associated with thermodynamic calibration and analytical uncertainty, "geological" error; classical thermometry; multi-equilibrium thermobarometry; inverse and forward modelling thermobarometry; introducing the main software for thermodynamic modeling. Orogenesis and metamorphism: regional examples. Exercises: reconstruction of pressure-temperature-time-strain (P-T-t-d) paths in polyphase metamorphism rocks
(reference books)
Part I J. D. Winter - An Introduction To Igneous And Metamorphic Petrology. Prentice Hall, New Jersey Rollinsons H., 1993. Using geochemical data: evaluation, presentation, interpretation. Longman Scientific & Techinal
Part II Bucher & Fry - Petrology Of Metamorphic Rocks. Springer
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