G8611 Magmatic and Metamorphic Rocks

Faculty of Science
Spring 2005
Extent and Intensity
2/0. 2 credit(s) (fasci plus compl plus > 4). Type of Completion: graded credit.
Teacher(s)
prof. RNDr. Milan Novák, CSc. (lecturer)
doc. RNDr. Miroslava Gregerová, CSc. (lecturer)
doc. RNDr. Jana Kotková, CSc. (lecturer)
Guaranteed by
doc. RNDr. Rostislav Melichar, Dr.
Department of Geological Sciences – Earth Sciences Section – Faculty of Science
Contact Person: Běla Hrbková
Timetable
Wed 8:00–9:50 Bp1,01007
Prerequisites
! G8610 Petrol. igneous, metam. rocks
Passing subjects Petrology I and Petrology II. Knowledge of those subjects is necessary for understanding studied matter. Graduation at the Bachelor's degree study.
Course Enrolment Limitations
The course is also offered to the students of the fields other than those the course is directly associated with.
The capacity limit for the course is 33 student(s).
Current registration and enrolment status: enrolled: 0/33, only registered: 0/33, only registered with preference (fields directly associated with the programme): 0/33
fields of study / plans the course is directly associated with
Course objectives
Subject offers the knowledge of the origin and development of igneous and metamorphosed rocks in different tectonomagmatic conditions. The subject arises from the modern theories and models of Earth mantle and crust, plate tectonics and plate rozhraní. Rock assemblages are studied comprehensively relative to the given tectonomagmatic cycle.
Syllabus
  • Magmatic activity: sources, basic meanings (province, suite, series, formation). Importance of formation analysis. Magmatic formations of oceanic crust, magmatic formations of continantal crust. Oceanic formations: oceanic islands, oceanic arcs and margins of continents. Continental formations: orogenic continental margins, intracontinental orogenic belts. Distribution of trace elements between melt and minerals, distribution of trace elements in igneous rocks, partial melting, contamination, crust and mantle heterogeneity. Isotopic composition on the example of granitoidal rocks. Contamination: assimilation of melts, assimilation without melts. Reaction between magmatic melt and assimilated material - example of granitic magmas: with pelitic material, with material rich for CaO, with basic igneous rocks. Petrographic and geochemical characteristics of contaminated rocks. Basic importance of contamination (contamination of granites and gabros). Zones of melting, mixing of simillar magmas, mixing of different magmas. Basic magma reacting with pelitic material, with psamitic material, with acidic igneous rocks. Primary sources: Experimental partial melting of pyrolite, melting of peridotites anf eclogites without presence of fluid phase, with present fluids, heterogeneity of the mantle. Secondary sources: differentiation, contamination - basalts. Petrotectonic assemblages and their relation to metalogenesis example of specified igneous rocks. Geotectonic position of individual types of metamorphism: regional medium-pressure metamorphism and continental orogenic regions, contact metamorphism, mid-ocean ridges, HP/LT metamorphism, subduction zones, UHP metamorphism Analysis of relationships between metamorphism and deformation Determination of P-T conditions of metamorphism, evidence for equilibrium in metamorphism, geothermobarometry Metamorphic P-T-t paths, petrogenetic grids, reconstruction of P-T paths, geochronology, examples Metasomatism, open versus closed systems in nature, diffusion and infiltraion proceses. Anatexis I melting of rocks in the crust, phase relations, role of water and fluids in melting, degree of melting, mineralogical and chemical composition of protolith and melt, examples. Anatexis II mineralogical and chemical composition of restites, phase relations, petrogenetic grids, estimation of Pt conditions of melting, examples. Significance of the invariant point in petrology, examples from metacarbonates, phase relations, petrogenetic grids, examples.
Literature
  • KONOPÁSEK, Jiří. Metamorfní petrologie. 1. vyd. Praha: Karolinum, 1998, 241 s. ISBN 8071846686. info
  • JOHANNES, Wilhelm and François HOLTZ. Petrogenesis and experimental petrology of granitic rocks. Berlin: Springer-Verlag, 1996, 335 s. ISBN 3540604162. info
Language of instruction
Czech
Further Comments
The course is taught annually.
The course is also listed under the following terms Spring 2008 - for the purpose of the accreditation, Spring 2003, Spring 2004, Spring 2006, Spring 2007, Spring 2008, Spring 2010.
  • Enrolment Statistics (Spring 2005, recent)
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