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GEOM08

Metamorphic Petrology and Structural Geology, 15 ECTS credits

Metamorphic processes have reshaped the crust since the formation of planet Earth. Metamorphism, involving essentially reactions in the solid state, takes place where rocks are subjected to temperature and pressure conditions different from those where they originally formed. New minerals form by chemical reactions, often in the presence of metamorphic fluids and during deformation. The rocks and their physical properties are commonly significantly changed. The rocks normally obtain entirely new mineral assemblages and textures, but depending on the conditions the change may vary from subtle to complete. Most of the crust in Scandinavia (and on Earth) is made up of metamorphic bedrock.

Studies of metamorphic rocks and deformation structures enable us to understand the build-up of the bedrock, its dynamic history and the processes that take place within the crust. Metamorphic petrology and structural geology are important disciplines in applied geology since metamorphism and deformation govern both the properties and the localization of various rocks.

This course focuses on metamorphic petrology, and is directed towards students who have previous training in basic mineralogy (mineral chemistry and petrographic microscopy), petrology, structural geology, and geochronology. During the course, we use different methods to investigate mineral assemblages, textures and structures in metamorphic rocks of different compositions. We work in micro- to mega scale in the study of the metamorphic build-up of mountain chains and other geological environments. The course comprises lectures, microscopy labs, article seminars and a study visit/excursion.

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General information

This is an elective course at advanced level, suitable for inclusion in a MSc. degree in geology. Please, note that You need to have completed GEOM11, or possess the equivalent knowledge (see syllabus for GEOM11), to be admitted. The course is taught during the first half of the spring term.

application

Period: Spring semester, first part (VT1), full time studies
Admission requirements: Minimum 90 ECTS credits in Geology or Earth Sciences, including GEOB21-GEOB25, GEOB01-GEOB04 or equivalent, and GEOM05/GEOM11 Magmatic Petrology, Geochemistry and Geochronology, 15 credits, or equivalent. English B (advanced) proficiency.

Application - Non-exchange students
Application - Exchange students

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Kyanite- and garnet-rich eclogite (county of Halland); the result of metamorphism at extremely high pressures.
Kyanite- and garnet-rich eclogite (county of Halland); the result of metamorphism at extremely high pressures.

Folded sequence of mafic and felsic gneisses, illustrating the structural build-up of the bedrock in the area (county of Halland).
Folded sequence of mafic and felsic gneisses, illustrating the structural build-up of the bedrock in the area (county of Halland).

Kyanite-bearing eclogite under the microscope, showing incomplete mineral reactions that took place during decompression.
Kyanite-bearing eclogite under the microscope, showing incomplete mineral reactions that took place during decompression.

Folded migmatite gneiss (Bårarp quarry, county of Halland). The folding took place during Sveconorwegian collision tectonics 970 Ma ago.
Folded migmatite gneiss (Bårarp quarry, county of Halland). The folding took place during Sveconorwegian collision tectonics 970 Ma ago.