Details of ES4101 (Autumn 2018)

Level: 7 Type: Theory Credits: 4.0

Course CodeCourse NameInstructor(s)
ES4101 Igneous and Metamorphic Petrology Tapabrato Sarkar

Preamble
Rationale: This course deals with mineralogical and textural changes that occur in response to elevated temperatures and pressures that rocks experience during deep burial within the earths crust. Additionally, the course makes students understand petrogenesis of igneous rocks (primary rocks) and metamorphic rocks, through interpretation of field relations, mineralogy and textures along with the use of geochemistry and mineral equilibria phase diagrams, from a Plate Tectonics perspective.

Syllabus
Part A Igneous petrology

Rationale: This part deals with the principle and mechanism of the generation of magma, its evolution through various processes, and crystallization to form igneous rocks.


General introduction where are igneous rocks formed?
IUGS classification and nomenclature of igneous rocks based on chemistry and mineralogy (E.g. TAS, QAPF classification schemes)
Recognizing and understanding igneous textures.
Igneous structures and field relations.
Introduction to basic thermodynamics with emphasis on phase rule.
Bowens reaction series
Introduction to phase diagrams, unary, binary and ternary phase diagrams (Albite-Anorthite, Anorthite-Diopside, Forsterite-silica, Anorthite-Diopside-Forsterite systems)
Understanding mantle melting processes, generation of basalts and basalt tetrahedron. Partial melting and its controlling factors.
Process of fractional crystallization and diversification of magmas.
Understanding the relationship between plate tectonics and the generation and distribution of igneous rocks.


Part B Metamorphic petrology

Rationale: This part deals with mineralogical and textural changes that occur in response to elevated temperatures and pressures that rocks experience during deep burial within the earths crust.

Introduction to metamorphism.
Types and agents of metamorphism.
Recognizing and understanding the textures and structures of metamorphic rocks.
Understanding the relation between deformation and metamorphism.
Introduction to metamorphic facies, understanding the facies concept and facies diagram.
Metamorphic reactions Basic thermodynamics of metamorphic reactions. Understanding discontinuous and continuous reactions, driving forces and reaction rates.
Prograde and retrograde metamorphism.
Metamorphism of mafic rocks oceanic crust metamorphism
Metamorphism of pelitic rocks Overview of Barrow zones, Barrovian metamorphism and AFM projections.
Metamorphism of calc-silicate rocks.
Introduction to geothermobarometry and its application.
Metamorphic fluids and metasomatism.
Pressure-Temperature paths and its relation to orogeny.

Prerequisite
Mineralogy and Geochemistry

References
M. Wilson, Igneous Petrogenesis,

H.R. Rollinson, Using Geochemical Data , Longman (1993).

A.R Philpots and J.J. Ague, Principles of Igneous and Metamorphic Petrology.

J. Winter, Principles of Igneous and Metamorphic Petrology

M.G. Best, Igneous an

Course Credit Options

Sl. No.ProgrammeSemester NoCourse Choice
1 IP 1 Not Allowed
2 IP 3 Elective
3 IP 5 Not Allowed
4 MR 1 Not Allowed
5 MR 3 Not Allowed
6 MS 7 Core
7 RS 1 Elective
8 RS 2 Elective