Petrography and Laboratory

A.Y. 2019/2020
Overall hours
Learning objectives
Principles of Igneous and Metamorphic petrology, and Laboratory
Ability to understand the genetic processes of the rocks of magmatic and metamorphic origin
Expected learning outcomes
Applying knowledge and understanding: Ability to translate the acquired skills in a broader geological context, applying the principles of rock formation to the definition of natural mineral resources.
Making judgements: Achieving autonomy in the evaluation of the physical and chemical data of the rocks in order to provide a scientifically correct description of the geological contexts
Communication skills: Ability to orally illustrate the analytical aspects and to present in writing a synthesis of the obtained knowledge
Learning skills: Ability to advancing knowledge in basic geological studies
Course syllabus and organization

Single session

Lesson period
Second semester
Course syllabus
Principles of Igneous and Metamorphic Petrology with laboratory
Composition and physical properties of mantle and crust. Origin, chemical and physical characters of the magma. Equilibrium versus fractional crystallization and melting in silicatic systems. Mantle sources and mantle contamination. Magma differentiation. Assimilation. Crustal anatexis. Mixing, mingling. Orogenic plutonism. Geochemical behaviour of trace elements and isotopes in the evolution of magma. Magmatic series and geodynamic environment.
Metamorphic petrology. Metamorphic processes; temperature, pressure, deformation; the role of fluids. Metamorphic grade, facies, isograds. Contact metamorphism. Orogenic metamorphism. High pressure metamorphism: eclogites. Granulites and the genesis of the deep crust. Vapour-present and vapour absent partial melting; migmatites. Ocean floor metamorphism. P-T-time paths. Retrograde metamorphism. The protoliths of metamorphic rocks.

Different techniques for the microscopic identification of the main magmatic and metamorphic minerals based on their optical characters in polarized light. Description and genetic interpretation of the main microstructures. Criteria for the petrographic study of magmatic and metamorphic rocks in thin section.
Prerequisites for admission
Knowledge of the contents of the teaching of Introduction to Geology and Laboratory, Mineralogy, Chemistry and Minerals and Rocks Laboratory is required.
Teaching methods
Attending classes is warmly recommended
A one day field trip is planned
Teaching Resources
John D. Winter (2010) Principles of Igneous and Metamorphic Petrology, Pearson, ISBN-10: 0321592573

Laboratory practicals, please visit the website:
Deer, Howie, Zussman - An Introduction to the Rock Forming Minerals, Longman Ed.
Slides and texts available on Ariel - Laboratorio Petrografia
Assessment methods and Criteria
The exam is divided into two written tests that equally contribute to the final evaluation out of thirty.
The assessment of the acquisition of the theoretical aspects of the subject takes place through the written exposition of three topics, of which at least one focuses on the petrography of igneous rocks and one on the petrography of metamorphic rocks. The test will last about two hours and the use of texts or notes is not allowed.
The verification of the acquisition of the contents related to the Practical test with the microscope (Petrography Laboratory module): it requires the description of the mineral composition and structure and classification of two rock sections (one magmatic and one metamorphic); the duration of the test is 3 hours and only written texts and personal notes are allowed;
Any type of internet connection and the presence of mobile phones during the test is prohibited.
GEO/07 - PETROLOGY AND PETROGRAPHY - University credits: 10
Field activity: 12 hours
Practicals: 36 hours
Lessons: 48 hours
Turno Unico
Professor: Caironi Valeria
Educational website(s)
Monday, 12.30 - 13.30
Via Botticelli 23, Milano
Monday 12.30-13.30
via Boticelli 23
8:30-12:30 14:30-17:30
Dipartimento Scienze della Terra "A. Desio" - Sezione Geologia-III piano