Igneous and Metamorphic Petrology

Learning Outcomes

Learning Outcomes

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.

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.

Summative

This is how we’ll formally assess what you have learned in this module.

Repeat Information

Repeat type: Internal & External