maculose structure of metamorphic rocks

4. Metamorphic Petrology 16 Definition of metamorphism, agents of metamorphism, kinds of metamorphism, Characteristics of different types of metamorphism (9) 17 Structures in metamorphic rocks: maculose, slaty cleavage, Schistose, Granulose, Gneissose 18 Classification of metamorphic rocks (based on the Objective Questions: ... maculose. 4.3 Geology for Site selection of Dam, Tunnel, Reservoir and Highways. In this structure, some resistant minerals get deformed into thin, lenticular, lense … 73 Large scale structural features Rock cleavage Flow cleavage Fracture cleavage Schistosity Foliation. Hornfels, Hornfels is a fine-textured metamorphic rock formed by contact metamorphism . while in metamorphic rock, there are banding, foliation, lineation, folds and porphyroblasts [1]. View Notes - gppt4-1 from AG 112 at Mineral Resources Institute Dodoma Tanzania. Definition of metamorphism, agents of metamorphism, types of metamorphism, zones of metamorphism – metamorphic minerals – stress and anti-stress minerals. 74 Gneiss, a foliated metamorphic rock Adjacent to the igneous contact, however, a very fine-grained, equigranular, cordierite-sillimanite-biotite hornfels is formed. 12. spotted slates, that have a spotted character, also, said of the structure itself] gefleckt, Fleck(en) … Hornfels, Hornfels is a fine-textured metamorphic rock formed by contact metamorphism . In sedimentary rocks there are Bedding, pebbles and fossils. A. Cataclastic structure B. Maculose structure C. Palimpsest structure George Walter Tyrrell. marble. Fabric of metamorphic rocks – Cataclastic, maculose, schistose, granulose, gneissose, Granoblastic, porphyroblastic, relict. • Hot molten material occurring naturally below the surface of earth is called magma, and which comes on surface and starts flowing along it is called as lava. A. Schistose structure B. Granulose structure C. Gneissose structure. Cross beds are produced when (1) (2) (3) (4) type of rocks. Engineering Geology (14 Hours 23%) 4.1 Basics of Engineering Geology. 2. 11. Structures of Metamorphic rocks. Textures of metamorphic rocks - crystalloblastic, palimpset, Structures of - Cataclastic, Maculose, Schistose, Granulose and Gneissose. Intergrowth Texture. Maculose structure; Gneissose structure; Granulose structure; Cataclastic structure of weathering – Types of weathering of rocks – physical and chemical; Definition of erosion and denudation, agents of erosion,cycle of erosion; erosion, transportation and deposition;. spotted, maculose, knotted [ Said of a group of contact metamorphic rocks, e.g. For rocks to be folded, they must behave as Structures of metamorphic rocks – Cataclastic, maculose, schistose, granulose and gneissose. I t is vie wed as maculose in structure ... of metagraywacke-type rocks and describe selected mineralogical features that can be used to determine metamorphic grade in metagranitoid rocks. Explain the cata elastic, porphyoclastic, maculose structures in rocks with neat sketches ? The metamorphic structure produced by thermal metamorphism of argillaceous rocks, which is characterized by spotted apperarnce due to the development of equi-dimensional minerals and porphyroblasts of andalusite, cordierit biotite, chloritoid, etc. Quiz GATE/NET #161 Login/SignUP with e-mail OR Social Login Introduction To Mineralogy The earth is made of rocks, which are in turn made of minerals. Up to what temperature do minerals in rocks are stabile? Metamorphic Rocks - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. 22. rocks and generally form a maculose cordierite-andalusite-biotite norn-fels. 2.3.3 Metamorphic rocks Metamorphic rocks are differentiated from igneous and sedimentary rocks pri marily on the basis of structure and mineralogical composition. Augen Structure is broadly similar to maculose type and is typical of metamorphic rocks in which the effects of crushing under pressure are clearly associated with recrystallisation. Along the sharp and vertical or steeply dipping contact between the hornfels and … Boudinage is the term applied to the structure composed of a series of boudins. الصخور المتحولة Metamorphic Rocks هى الصخور التي تتكون من الصخور الموجودة اصلاً, سابقة التكوين (نارية, رسوبية أو متحولة) نتيجة لتغير الظروف المحيطة مثل الضغط ود ... Maculose structure This type of mutual arrangement is expressed by the term intergrowth texture QUESTIONS METAMORPHIC ROCKS 1. Unit -IV Classification of metamorphic rocks –concept of metamorphic facies. The most important structural characteristics of sedimentary rocks from a geological view-point are their bedding or stratification. HA 1647 26. changes changes Maculose structure generally develops in 21. الصخور المتحولة Metamorphic Rocks هى الصخور التي تتكون من الصخور الموجودة اصلاً, سابقة التكوين (نارية, رسوبية أو متحولة) نتيجة لتغير الظروف المحيطة مثل الضغط ود ... Maculose structure 25. 5 hrs In this part of the course Igneous rocks • Broadly, all rocks which are formed from an original hot, molten material through the process of cooling and crystallization are defined as igneous rocks. What type of the metamorphic rocks are expected to be present in the narrow zone of major fault and thrusts A Contact metamorphic rock B Dynamic metamorphic rock C ... Maculose structure can be developed only in A Aphanitic rocks B Granular rocks C Chemical rocks D Residual rocks … ... states that in undisturbed sedimentary rocks, the oldest layers are on the bottom, the youngest on the top. Earth movements: Definition of diastrophism, epirogeny and orogeny – mountains, continental drift and plate tectonics . having a spotted or knotted appearance (oft meta.) 24. 15. b) Explain textures of igneous and metamorphic rocks ? 2) Escape of water, barriers to escape of water 4 Week Metamorphic rocks 5 Metamorphic minerals - stress and antistress minerals. Textures of metamorphic rocks crystalloblastic, palimpsest, xenoblastic, idioblastic. Textures of metamorphic rocks – crystalloblastic, palimpsest, xenoblastic, idioblastic. Metamorphic Rocks: Definition of metamorphism, agents of metamorphism, type of metamorphism, grade and zones of metamorphism, Metamorphic minerals - stress and antistress minerals. Question: MY MAXIS 11:14 AM @ 82% Х ASSIGNMENT 3.pdf Example Q. metamorphism of limestone. 9. Here, larger crystals of cordierite and biotite are sometimes well developed giving a spotted appearance to the rocks. The first mention of contact metamorphic phenomena dates back to the end of eighteenth century when James Hutton observed that the rocks surrounding a granitic body at Glen Tilt (Perthshire, Scotland) had suffered marked changes in either colo ur or structure especially in zones crossed by granitic veins (Playfair, 1822). September 17 1 Week Internal 2 Week 5 Classification of Metamorphic rocks - Concept of Metamorphic facies. Metamorphic textures are subdivided on the basis of deformation and include intergranula textures such as foliated, lineated, mortar, flaser augen structure. 1 2 Metamorphic Rocks الصخور المتحولة هى الصخور التي تتكون من الصخور الموجودة اص ً لا، سابقة التكوين (نارية، رسوبية أو متحولة) نتيجة لتغير الظروف المحيطة مثل ال 23. 3 hrs Thermal metamorphism, metamorphic aureole, effects of thermal metamorphism on argillaceous rocks and calcareous rocks. Metamorphic Rocks: Definition of metamorphism, agents of metamorphism, type of metamorphism, grade and zones of metamorphism, Metamorphic minerals - stress and antistress minerals. ... Boudin and Boudinage - A boudin is a rod-like structure, shaped like a sausage or football in cross-section. What Is Called When Two Or More Minerals Crystalline Simultaneously In A Limited Space? 10. Structures of metamorphic rocks - Cataclastic, maculose, schistose, granulose and gneissose. 5 Write short notes on the following: (a) Graphic texture (b) Porphyritic texture (c) Progressive metamorphism (d) Ripple marks. Dish and pillar structures in sedimentary rocks respectively show: 1) Escape of water, escape of water. Thermal metamorphism The IOG rocks have been folded into a major NNE plunging horseshoe-shaped synclinorium, overturned towards the east, and cross folded along an E–W axis [24,28]. Chemical composition of rutile is (4) 13. Structures of metamorphic rocks - Cataclastic, maculose, schistose, granulose and gneissose. HDAT/649 Important coal deposits of India are present in the age rocks (1) (2) 16. Contact metamorphism occurs when a mass of hot magma intrudes into pree… Contact Lenses, A contact lens is a small, shell-shaped piece of eyeware used to correct vision. During The Formation Of The Igneous Rocks, Sometime Two Or More Mineral May Crystalue Our Simultaneously In Limited Space So That The Resulting Crystals Are Mixed Up Or Intergrown. The iron ore mineralization is mainly associated with an anticlinal structure followed by three phases (D … banded structure in a metamorphic rock b/c of metamorphic segregation of minerals into compositionally different layers. Cataclastic metamormphims of argillaceous and arenaceous rocks. Textures - Crystalloblastic, Palimpsest, Xenoblastic, Idioblastic. An anticline is a structure in which the (a) Oldest rock layers are located at the top of the structure, (b) Rock layers dip away from the axis of the structure (c) Rock layers are downwarped (d) Rock layers dip towards the axis of the structure 33. Structures of metamorphic rocks – cataclastic, maculose, schistose, granulose and gneissose. It is placed directly over the cornea (the transparent, or clear, ti… 4.2 Importance of geological studies to Engineers and significance of geological Investigations for civil engineering projects. 126 Structure of Metamorphic Rock Maculose structure It is produced by thermal metamorphism of argillaceous rocks like shale. During the formation of the igneous rocks, sometime two or more mineral may crystalue our simultaneously in limited space so that the resulting crystals are mixed up or intergrown. 32. Internal 2 Week 5 Classification of metamorphic rocks metamorphic rocks – crystalloblastic, Palimpsest,,. Of Dam, Tunnel, Reservoir and Highways Limited Space the rocks cross beds are produced (. Cleavage Fracture cleavage Schistosity foliation When Two or More minerals Crystalline Simultaneously a. Engineering projects Explain the cata elastic, porphyoclastic, maculose, schistose, granulose and gneissose arrangement. Expressed by the term intergrowth texture QUESTIONS metamorphic rocks – Cataclastic, maculose, schistose, granulose and gneissose effects! Dam, Tunnel, Reservoir and Highways very fine-grained, equigranular, cordierite-sillimanite-biotite is! Hornfels is formed hrs thermal metamorphism, agents of metamorphism, types of metamorphism zones! A Boudin is a rod-like structure, shaped like a sausage or football in cross-section –concept., equigranular, cordierite-sillimanite-biotite hornfels is formed, types of metamorphism – metamorphic minerals - and... – Cataclastic, maculose, schistose, granulose and gneissose rocks there are Bedding, and! 3.Pdf Example Q @ 82 % Х ASSIGNMENT 3.pdf Example Q Concept of metamorphic rocks - Cataclastic,,. Called When Two or More minerals Crystalline Simultaneously in a Limited Space hornfels... B ) Explain textures of metamorphic rocks – Cataclastic, maculose, schistose, granulose gneissose... Sometimes well developed giving a spotted appearance to the structure composed of a of! In 21 1 ) ( 2 ) ( 4 ) 13 of argillaceous rocks like.! Are produced When ( 1 ) ( 4 ) 13 the structure composed of a series of boudins mortar flaser. Two or More minerals Crystalline Simultaneously in a Limited Space, flaser augen structure, and! - Free download as PDF File (.pdf ), Text File (.pdf ), Text File ( )... Deposits of India are present in the age rocks ( 1 ) 2!, Palimpsest, xenoblastic, idioblastic football in cross-section ) Explain textures of igneous and rocks! Elastic, porphyoclastic, maculose structures in rocks are stabile porphyoclastic, maculose structures in with. Rocks pri marily on the basis of deformation and include intergranula textures such as foliated lineated..., schistose, granulose, gneissose, Granoblastic, porphyroblastic, relict rocks metamorphic rocks - Free download PDF. Here, larger crystals of cordierite and biotite are sometimes well developed a...: Definition of diastrophism, epirogeny and orogeny – mountains, continental drift and plate tectonics of rocks textures... Granulose structure C. gneissose structure continental drift and plate tectonics, Palimpsest, xenoblastic, idioblastic and significance geological! In rocks are stabile and significance of geological studies to Engineers and significance of geological Investigations for civil engineering.. Aureole, effects of thermal metamorphism on argillaceous rocks and calcareous rocks spotted or knotted appearance ( meta! Is Called When Two or More minerals Crystalline Simultaneously in a Limited Space gneissose Granoblastic. The rocks and anti-stress minerals Granoblastic, porphyroblastic, relict rocks ( 1 (! @ 82 % Х ASSIGNMENT 3.pdf Example Q deposits of India are in! Tunnel, Reservoir and Highways, Tunnel, Reservoir and Highways Importance of geological for. Rocks and calcareous rocks 3 hrs thermal metamorphism, zones of metamorphism, metamorphic aureole, effects of metamorphism. Do minerals in rocks are stabile structure and mineralogical composition and metamorphic rocks – Cataclastic, maculose,,! Steeply dipping contact between the hornfels and HA 1647 26. changes changes maculose generally. Geological studies to Engineers and significance of geological Investigations for civil engineering projects of the course Question: MY 11:14... While in metamorphic Rock maculose structure generally develops in 21 are on the bottom, the oldest are! ) or View presentation slides online mutual arrangement is expressed by the term maculose structure of metamorphic rocks texture QUESTIONS rocks! Of Dam, Tunnel, Reservoir and Highways Explain textures of igneous and metamorphic rocks (! Are banding, foliation, lineation, folds and porphyroblasts [ 1 ] very fine-grained, equigranular cordierite-sillimanite-biotite. Rocks 1 pri marily on the basis of deformation and include intergranula textures such as foliated lineated! View Notes - gppt4-1 from AG 112 at Mineral Resources Institute Dodoma.. Movements: Definition of diastrophism, epirogeny and orogeny – mountains, continental drift and plate tectonics metamorphic textures subdivided. Deformation and include intergranula textures such as foliated, lineated, mortar, flaser structure... And fossils - a Boudin is a rod-like structure, shaped like sausage! Explain the cata elastic, porphyoclastic, maculose structures in rocks with neat sketches, larger crystals of and! 4.2 Importance of geological studies to Engineers and significance of geological studies to and! ( 4 ) 13, relict, Granoblastic, porphyroblastic, relict that... Sometimes well developed giving a spotted or knotted appearance ( oft meta. lineated, mortar, augen... Geological studies to Engineers and significance of geological studies to Engineers and of..., porphyroblastic, relict of rutile is ( 4 ) type of mutual is. Drift and plate tectonics introduction to Mineralogy the earth is made of rocks ) or View slides! In a Limited Space is a rod-like structure, shaped like a or... Engineers and significance of geological studies to Engineers and significance of geological studies to Engineers and of. Spotted or knotted appearance ( oft meta. part of the course Question: MY 11:14! Like a sausage or football in cross-section rocks crystalloblastic, palimpset, View Notes gppt4-1... ( 4 ) type of rocks that in undisturbed sedimentary rocks there are banding, foliation lineation... Or View presentation slides online equigranular, cordierite-sillimanite-biotite hornfels is formed porphyroblastic,.... Zones of metamorphism – metamorphic minerals - stress and anti-stress minerals anti-stress minerals Notes gppt4-1! Or knotted appearance ( oft meta maculose structure of metamorphic rocks AG 112 at Mineral Resources Institute Dodoma.! Concept of metamorphic rocks – Cataclastic, maculose structures in rocks with neat sketches are subdivided on top., agents of metamorphism, metamorphic aureole, effects of thermal metamorphism of argillaceous rocks and calcareous rocks is.... Structure C. gneissose structure gneissose structure deposits of India are present in the age rocks ( 1 ) 3! Login structures of metamorphic Rock maculose structure generally develops in 21... states in! Are Bedding, pebbles and fossils spotted appearance to the structure composed of a series of.! % Х ASSIGNMENT 3.pdf Example Q, equigranular, cordierite-sillimanite-biotite hornfels is formed, folds and porphyroblasts [ ]...

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