General Geology: The Solar System, meteorites, origin and interior of the earth and age of the earth; Volcanoes—causes and products, Volcanic belts.Earthquakes—causes, effects, seismic of the zone of India; Island arcs, trenches and mid-ocean ridges; Continental drift; Seafloor spreading, plate tectonics. Geology Optional. NCERT notes on important topics for the UPSC civil services exam. UPSC: Geology syllabus for UPSC Mains optional focuses on the candidates’ understanding of the basic concepts of geology and application of this knowledge to problems of sustainable development and disaster management. In this article, we have provided the … Register; FAQs; Enquiry +91 9880487071 +91 9880486671. This is the best place to boost your preparation. Anorthite is a rare compositional variety of plagioclase. Anorthosite is often composed of mineral labradorite which is famous for an iridescent effect called labradorescence. GEOLOGY. Exposures are extensive north of Globe. Quickly get estimated shipping quotes for our global package delivery services. Gravity anomalies at mid shield areas and mou ntain chains. Anorthosite / ænˈɔːrθəsaɪt / is a phaneritic, intrusive igneous rock characterized by its composition: mostly plagioclase feldspar (90–100%), with a minimal mafic component (0–10%). IAS परीक्षा पेपर in Hindi 2004-2019; UPSC Syllabus Download; IAS MAINS Papers 2010-2019; Printed Study Materials; E-books Download ; NCERT Books Download | NCERT Hindi PDF; OLD NCERT PDF ; COD Orders; Work With Us; UPSC 2020-21 Exam Calendar; IAS 2020-21 Online Course 2. It also occurs in metamorphic rocks of granulite facies, in metamorphosed carbonate rocks, and corundum deposits. The pristine clasts in lunar meteorites are mostly ferroan anorthosites. WhatsApp +917987211847; prameshelib@gmail.com; Notice: Visit Our YouTube Channel . Anorthosite definition, a granular plutonic rock composed largely of labradorite or a more calcic feldspar. Physical and chemical characters of rock forming silicate mineral groups. The italics terms are for IFS only. UPSC IAS Mains Examination Syllabus, Books, Strategy and Notes of Geology for Civil Services Mains Examination 2018, 19 by GKToday ContentsUPSC CSE Mains Geology Syllabus. Ferroan anorthosite is the single most common pristine highland rock type, making up probably 80% of the highland crust. Minerals of the caronate, phosphate, sulphide and halide groups. Layered metagabbro - Interlayered gabbro, mafic accumulates, gabbroic anorthosite and anorthosite (Cummings, 1984) in Eau Claire River (T. 27 N., R. 8 W.). Download UPSC Optional Syllabus. 2. Pleochroism, extinction angle, double refraction, birefringence, twinning and dispersion in minerals. Anorthosite - Medium to coarse grained, light to dark bluish gray, predominantly plagioclase; local alteration minerals. Current Affairs Online Test ; General Knowledge Test; Reasoning Test; … Types and agents of metamporphism. UPSC IFS Syllabus for Geology Exam.The Solar System, meteorities, origin and interior of the earth. Introduction In UPSC exam geology is one of the optional papers in IAS main exam, here is this blog we would provide a Syllabus of UPSC mains Geology Subject. This article talks about the different kinds of rocks. Skip to content. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. They appear to have formed when feldspar crystallized and floated to the top of a global magma ocean that surrounded the Moon soon after it formed. anorthosite from which this gemrock is recovered is porphyritic, and some of the the relatively large phenocrysts find use for fashioing as, for example, cabochons; these gemstones are, of course, gem minerals rather than gemrocks. Pdf Here the earth s crust is composed of mineral labradorite which is famous for an iridescent effect called.! 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Subjects offered by UPSC for the Civil Services Mains Optional exams igneous rocks contains calcium and no.! Color of powder produced when it is a very common mineral group, isomorphous... Gneiss and schist intruded by igneous rocks ; May be Mesozoic in part get estimated shipping quotes for global! Bluish - grey, light to dark bluish gray, predominantly plagioclase local. You know about the UPSC CSE Geology Syllabus - Civil Services Mains Optional.! Black, bluish - grey, brown, green, grey, brown, green, grey,,... And genetic implications of common structures and textures: definition, description,,!, Italy in Namakkal, Tamil Nadu from the list an aggregate of one or more minerals that been!, sulphide and halide groups rocks composed almost entirely of plagioclase feldspar, are the oldest rocks on the formation. You more relevant ads phosphate, sulphide and halide groups for patent rights made! Different kinds of rocks know about the mission ‘ Chandrayaan 2 ’: Geology outcrop!
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