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Swayam

Metamorphic Petrology & Thermodynamics

Doctor Harisingh Gour Vishwavidyalaya, Sagar and UGC via Swayam

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Overview

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This course is a basic to advance introduction for the post graduate students in petrology. Geology is plagued by the problem of in accessibility; they see only the tiny fraction of the rocks that composes the Earth. During the processes of uplift and the erosion on the surface, but their exact place of origin is vague. As a result, a large proportion of our information about earth is indirectly coming from analysis of subsurface materials, geophysical studies, or experiments conducted at variable temperature and pressure. Metamorphic rocks are the most common rock type on Earth, and their study allows us to put constraints on the pressure, stress and temperature conditions in the crust and mantle, and on the bulk composition in these environments. Metamorphism affects rocks in three ways; it changes their mineralogy, it changes their shape, and it can change their composition.In this course we will look at the processes behind metamorphism, the description, and classification of metamorphic rocks, and how to extract information from metamorphic rocks and minerals to determine the conditions under which they formed. Metamorphism means change in form. In geology the term is used to refer to a solid-state recrystallization of earlier igneous, sedimentary, or metamorphic rocks. Such study includes description and classification of rocks as well as interpretation of their origin. Petrology is subdivided into three major rock types: Igneous, sedimentary, and metamorphic. Igneous and metamorphic petrology are combined, due to the similarity of approach and principle involved during their formation. As per the syllabus of UGC based on CBCS, I henceforth use the term metamorphic petrology and thermodynamics is to study metamorphic rocks and their processes of formation within one single paper as basic to advance for the post graduate students.This course deals with the naturally occurring rocks in field as well as laboratory analysis data that provide sufficient information how they occur in the nature. It gives idea of modern petrological theories which are widely accepted for their origin. The course emphasis the petrology which cover the Geology & its Perspective, Career in geology, Structure and classification of the silicate minerals along with Definition of metamorphism, Factors controlling metamorphism, variables / agents and types / kinds of metamorphism – contact, regional, fault zone metamorphism, impact metamorphism. Types and classification based on metamorphic agent. Regional metamorphism and paired metamorphic belts with reference to the theory of plate tectonics. Mineralogical phase rule for closed and open systems, nature of metamorphic reactions, concept and classification of metamorphic facies and facies series, Introduction to ultrahigh temperature and ultrahigh pressure metamorphism. Metamorphic zones, isograde and reaction isograde, Concept of classification of metamorphic facies, facies-series and grade, structure and textures of metamorphic rocks; chemographic projection, graphical representation of metamorphic minerals assemblages; ACF, AKF, AFM and others diagram.Description of each facies of low, medium to high pressure and very high pressure with special reference to characteristic minerals, subdivision into zones / subfacies, mineral assemblages; Metamorphic reactions and pressure – temperature conditions of metamorphism. Regional metamorphism of pelitic, calcareous, basic, and ultra basic rocks and thermal metamorphism of calcareous and pelitic rocks. Schreinemakers rule and construction of petrogenetic grids, metamorphic differentiation, anatexis and origin of migmatites in the light of experimental studies. Laws of thermodynamics; Gibb’s free energy, entropy, ∆G of metamorphic reactions (solid-solid and dehydration reactions); Geothermobarometry and PT paths. Petrographic details of some important metamorphic rocks such as - slate, phyllite, schists, gneiss, quartzite, marble, charnockite, leptynite, khnodalite etc.The course definitely provides better understanding to students for the processes and principles involved during the origin and evolution of the metamorphic rocks. The course contains video, text, assignment; quiz, case studies, references etc and I hope it will be useful for the geology students within and outside India. Last but not least, I highly accept any comments, questions, or suggestion for the improvement of this course.

Syllabus

Week 1:W1- Weekly Introduction, W1D1-Geology and it’s perspective, W1D2-Career in geology, W1D3-Silicate mineral classification, W1D4- Metamorphic petrology an Overview, W1D5-Assignments, W1D6-Weekly tests.Week-2:
W2-Weekly Introduction, W2D1-Definition of metamorphism, W2D2-Limits of metamorphism, W2D3-Factor controlling metamorphism, W2D4-Assignment, W2D5-Assignment, W2D6-Weekly test.Week-3:
W3-Introduction, W3D1-Types of metamorphism, W3D2–Zone of Metamorphism, W3D3–Grade of metamorphism, W3D4-Assignment, discussion and forum activities, W3D5-Assignment, discussion and forum activities and finally W3D6-Week test.Week-4:
W4-Introduction, W4D1–Concept of metamorphic facies, W4D2–Type of metamorphic facies, W4D3–Metamorphic facies series, W4D4-Plate tectonic and metamorphic facies series, W4D5-Assignment, discussion and forum activities, and finally W4D6-Weekly test.Week-5:
W5-Weekly Introduction, W5D1-Phase Rules, W5D2-Gibbs phase Rule, W5D3-Goldschmidt’s Mineralogical Phase Rule, W5D4-Phase diagram for metamorphic mineral assemblages, ACF diagrams. W5D5-Assignment, discussion and forum activities W5D6-Weekly test.Week-6:
W6-weekly Introduction, W6D1–AKF diagram, W6D2–AFM Projection, W6D3–A’F’M’ diagram, W6D4–CaO-MgO-SiO2 & Al2O3-MgO-SiO2 diagrams, W6D5-Assignment, discussion and forum activities W6D6-Weekly test.Week-7:
W7-Weekly Introduction, W7D1–Parent composition of metamorphic rocks, W7D2–Metamorphic Rocks & Their nomenclature, W7D3–Metamorphic reactions, W7D4–Schreinemakers Rules, W7D5-Assignment, discussion and forum activities W7D6-Weekly test.Week-8:
W8-Weekly Introduction, W8D1-Facies of low pressure: Albite Epidote Hornfels Facies; W8D2-Hornblende - Hornfels Facies; W8D3-Pyroxene – Hornfels Facies, W8D4-Assignment and Interaction/Forum activity; W8D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W8D6-Weekly test.Week-9:
W9-Weekly Introduction, W9D1-Sanidinite Facies; W9D2-Zeolite Facies; W9D3-Green Schist Facies, W9D4-Assignment and Interaction/Forum activity; W9D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W9D6-Weekly test.Week-10:
W10-Weekly Introduction, W10D1-Amphibolite Facies; W10D2-Granulite Facies; W10D3-de Waard classification for granulite, W10D4-Assignment and Interaction/Forum activity; W10D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W10D6-Weekly test.Week-11:
W11-Weekly Introduction, W11D1- Origin of Granulite/Charnockite; W11D2-Blue Schist Facies; W11D3-Eclogite Facies, W11D4-Assignment and Interaction/Forum activity; W11D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally - W11D6-Weekly test.
Week-12:
W12-Weekly Introduction, W12D1-Regional Metamorphism of Pelitic Rocks; W12D2- Regional Metamorphism of mafic or Basic Rocks; W12D3- Regional Metamorphism of Calcareous Rocks, W12D4- Regional Metamorphism of Ultramafic Rocks; W12D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W12D6-Weekly test.
Week-13:
W13-Weekly Introduction, W13D1-Thermal Metamorphism of calcareous Rocks; W13D2- Thermal Metamorphism of Pelitic hornfels; W13D3- Thermal Metamorphism of basic/mafic Rocks, W13D4-Thermal Metamorphism of Ultramafic Rocks; W13D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W13D6-Weekly test.
Week-14:
W14-Weekly Introduction, W14D1-Migmatite; W14D2-Crustal melting; W14D3-Metasomatism, W14D4-metamorphic Differentiation; W14D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W14D6-Weekly test.
Week-15:
W15-Weekly Introduction, W15D1-Structure of Metamorphic Rocks; W15D2-Texture of Metamorphic Rocks; W15D3-Time relation between Deformation and Metamorphism, W15D4-Assignment; W15D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W15D6-Weekly test.
Week-16:
W16-Weekly Introduction, W16D1-Paired Metamorphic Belt; W16D2-P-T Path; W16D3-Case Study of P-T Path, W16D4-UHP & UHT Metamorphism; W16D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W16D6-Weekly test.
Week-17:
W17-Weekly Introduction, W17D1-Thermodynamics Application to Metamorphic Petrology; W17D2- Enthalpy of Pure Substances in Standard State;W17D3- Application of Gibbs-Helmholts Equcation, W17D4- Activity-Composition Relations;W17D5-Assignment and Interaction/Forum activity, along with every day quiz, assignment, and finally W17D6-Weekly test.

Taught by

Professor (Dr.) Harel Thomas

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Reviews

5.0 rating, based on 7 Class Central reviews

Start your review of Metamorphic Petrology & Thermodynamics

  • Anonymous
    Very useful course for preparations of various competitive exams like Gate, Upsc. Course starts with basic introduction and grades to advanced studies. The daily assignment and quiz also helped a lot.

    The daily notes provided by Prof. Harel Thomas are great because they are prepared by combining the best of the other reference material.

    If you want to learn metamorphic petrology, this is the best platform.
  • Anonymous
    Very useful course for preparations of various competitive exams like Gate, Upsc. Course starts with basic introduction and grades to advanced studies. The daily assignment and quiz also helped a lot.

    The daily notes provided by Prof. Harel Thomas are great because they are prepared by combining the best of the other reference material.

    If you want to learn metamorphic petrology, this is the best platform.
  • Anonymous
    This course is very much useful in field of metamorphic petrology, this include the content of various competative examination , so it useful in academic as well as cracking various exam, material that is available in course content are so informative and easy to understand , create a fundamental level of understanding among student , and the course videos and references are very good and useful .
  • Anonymous
    This course on metamorphic petrology and thermodynamics is very useful for graduate & post-graduate students of Geology as well as all Geological science students. It is quite elaborate in description. At the same time it is to the point in reference to the respective topics.
  • Anonymous
    It was really enriching and helpful for building basics to advanced level.The assignments and quizzes are beneficial for us.The course content in text and video format is good.
  • Anonymous
    Very informative course with competitive as well as semester point of view. The course lecture provides updated questions asked in various entrance papers.
  • Anonymous
    This online course is helped us in this corona pandemic its lecture is very good and their notes are very helpful for preparing for entrance exam

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