Course - Petrology - TGB4130
TGB4130 - Petrology
About
Examination arrangement
Examination arrangement: School exam
Grade: Letter grades
| Evaluation | Weighting | Duration | Grade deviation | Examination aids |
|---|---|---|---|---|
| School exam | 100/100 | 4 hours | D |
Course content
The petrology part of the course includes igneous and metamorphic processes and rocks. The geochemical part of the course focuses on isotope geochemistry and application of isotopes to the understanding of age and origin of igneous and metamorphic rocks. The compulsory exercises are rock microscopy (2E) and hand-specimen petrography, interpretation of phase diagrams and geochemical data processing (1E). One excursion is included in the course. More information will be provided at the start of the course.
Learning outcome
After fulfilling the course, the student should be able to follow in these subthemes: Metamorphic petrology: You should understand and be able to use fase grids, inclusive petrogenetic grids, chemographic projections and pseudosections to interpret mineral reactions and metamorphic PT conditions in the earth. You should also understand and be able to explain the advantages / disadvantages and limitations of the various methods. The student should be able to explain metamorphosed mafic rocks and pelitic rocks. These include not only the formation of new mineral assemblages but also changes in mineral chemistry as a function of pressure, temperature and fluid composition. Igneous petrology: The course provides an introduction to the use of main and trace element geochemistry and isotopes (Rb / Sr, Sm / Nd, U / Pb) to understand the origin, age and development of various types of magma. These methods form the foundation for the introduction of magmatic activity in different tectonic environment, with emphasis on mid-ocean ridges and oceanic and continental subduction zones. You will also be able to understand and apply the common igneous binary and ternary phase diagrams and determine mineral and melt amounts using lever rule of equilibrium crystallization. Moreover, you should also be able to use charts to predict both equilibrium crystallization path and fractional crystallization from a given starting composition of the melt. The mandatory assignments during the semester will make the student able to:
- Design petrographic descriptions (rock descriptions) of metamorphic and igneous rocks through the thin section and hand specimen.
- Apply your observations to interpret the formation of igneous and metamorphic rocks by igneous and metamorphic phase diagram.
- Make larger geochemical calculations using computer tools (spreadsheets and maybe matlab and Cspace) and interpret the significance of the result.
Learning methods and activities
Lectures, exercises and field training. There are compulsory practical tests as part of the exercises. These tests do not count in the final grade in the course, but the test must be approved in order to take the written exam (which counts 100%). Fieldwork may be scheduled for a weekend. The course is evaluated by a reference group.
Compulsory assignments
- Exersices
- Field trip
Further on evaluation
If there is a re-sit examination, the form of assessment may be changed from written to oral.
Recommended previous knowledge
General knowledge of geology, mineralogy, petrography, including microscopy and chemistry.
Course materials
Information will be given at the start of the semester.
Credit reductions
| Course code | Reduction | From | To |
|---|---|---|---|
| SIG0513 | 7.5 |
No
Version: 1
Credits:
7.5 SP
Study level: Third-year courses, level III
Term no.: 1
Teaching semester: SPRING 2025
Language of instruction: Norwegian
Location: Trondheim
- Petrology
- Geology
- Technological subjects
Examination
Examination arrangement: School exam
- Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
- Spring ORD School exam 100/100 D INSPERA
-
Room Building Number of candidates - Summer UTS School exam 100/100 D INSPERA
-
Room Building Number of candidates
- * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.
For more information regarding registration for examination and examination procedures, see "Innsida - Exams"