Programma

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

Testi Adottati

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

Bibliografia Di Riferimento

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

Modalità Erogazione

In order to acquire the projected skills, the course is organized with theoretical lectures and numerical exercises.

Modalità Frequenza

Lectures and practical exercises are mandatory.

Modalità Valutazione

The exam consists in a oral examination focusing on the entire teaching program. The examination is oriented to verify the overall comprehension of the concepts explained and the students capability to apply this knowledge to natural cases. The questions will be aimed at verifying knowledge on: (i) igneous petrology, (ii) metamorphic petrology, and (iii) geodynamic environments

Programma

Part I: The igneous process. geochemical characteristics of magmas as petrogenetic indicators. trace elements and isotopic distribution in magmas. magma melting and diversity. magmatic series. geochemical features and eruptive style in the main petrogenetic provinces. mid-ocean ridge volcanism, subduction-related igneous activity and granitoid rocks. orogenesis and magmatism: the Mediteranean Province.
Part II: the metamorphic process: lithological types and the main metamorphic facies; gradient of metamorphism and geodynamic settings. the orogenic and subduction-zone metamorphism.the contact metamorphism; migmatites and partial melting processes. mineral growth and rock fabrics: pre-, syn- , post-kinematic crystallization. metamorphic thermobarometry and reconstruction of the pressure-temperature-time (P-T-t) paths in polyphase metamorphism. orogeny and metamorphism: regional examples.

Testi Adottati

J. D. Winter - An Introduction To Igneous And Metamorphic Petrology. Prentice Hall, New Jersey

Bucher & Fry - Petrology Of Metamorphic Rocks. Springer

Modalità Erogazione

The teaching will be given through lectures and laboratory exercises

Modalità Frequenza

partecipation to practical exercises is compulsory

Modalità Valutazione

The oral exam focuses on the entire teaching program, with questions aimed at verifying knowledge on: (i) igneous petrology, (ii) metamorphic petrology, and (iv) geodynamic environments