Aims and Objectives
Having successfully completed this module you will be able to:
- Assign a name to an igneous or metamorphic rock on the basis of its mineralogical and textural characteristics, and appreciate the environment(s) of formation.
- Practical experience of rock and mineral identification in hand specimen and in thin-section using a transmitted light microscope.
- Identify the common rock forming minerals of igneous and metamorphic rocks in both hand specimen and thin-section.
- Ability to make detailed and annotated petrographic sketches from thin-section observation and to summarise the salient features and relate the chemistry of the system and environment of formation.
- Ability to interpret phase diagrams relevant to igneous systems and petrogenic grids relevant to metamorphic systems on the basis of mineral assemblages recorded in the rock.
- Identify key textural/micro structural features of igneous and metamorphic rocks and appreciate the significance of such features with regard to geological processes that have operated.
Methods: Coverage of igneous rock classification (mineralogical/geochemical); the use of geochemistry in petrogenetic concepts; an introduction to phase petrology and the concepts of partial melting and fractional crystallisation; a brief review of the main igneous rock spectrum and their tectonic setting. Introduction to the concept of metamorphic facies as a means of defining P-T conditions; quantitative geothermometry/ geobarometry; evaluating the role of bulk rock chemistry, fluid chemistry and P-T conditions in controlling metamorphic reactions; interpretation of textures and microstructures of metamorphic rocks.
Practicals: Hand specimen and thin-section description of various igneous and metamorphic rocks. Evaluation of P-T condition of metamorphism based on phase assemblages.
Learning and Teaching
Teaching and learning methods
Formal lectures: will provide an introduction to the theory underlying metamorphism, phase petrology, igneous rock classification and the use of geochemistry in petrogenetic concepts.
Practical classes & demonstrations: will exemplify the theory and allow you to develop skills in hand specimen and thin section description of various igneous and metamorphic rocks. Practical classes are fully interactive affording hands-on experience of using geological equipment under laboratory conditions. Practical manuals are an integral part of the course.
A wide range of support can be provided for those students who have further or specific learning and teaching needs.
|Practical classes and workshops||36|
|Total study time||150|
This is how we’ll formally assess what you have learned in this module.
Repeat type: Internal & External