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Types of Rocks and Rock Cycle (for UPSC CSE)
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Through this lesson, one will come across all the major concepts related to Rocks and the Rock cycle. As the lesson starts she throws light on the three main classes of Rocks. Then she from scratch she explains how rocks are formed. With the help of proper diagram she explains the entire​ rock cycle.

Bhumika Saini
B Tech from MNIT, Jaipur. Appeared in CSE interview thrice. Loves teaching and playing badminton.

U
Unacademy user
mam, please slow down the pace of explanation to some extent.
wow ...great knowledge ...and the way u teach is superb , thanks a lot , thanks from bottom of my heart mam.
incredible lessons in incredible platform.......thank you mam for your great effort for this education revolution..God bless unacademy
  1. COURSE: GEOMORPHOLOGY-ORIGIN AND EVOLUTION OF EARTH AND RELATED THEORIES LESSON: ROCKS AND ROCK CYCLE PRESENTED BY BHUMIKA SAINI


  2. About me .B Tech from MNIT, Jaipur Interests: Reading, Playing Badminton Appeared in CSE interview thrice Three years of experience in teaching .Course fee: CONTRIBUTE Follow me on Unacademy: https://unacademy.in/user/BhumikaSaini me on Unacademy: httpsi//unacademyin/user/BhumikaSaini


  3. Rock Cycle It is a sequence of events involving the formation, alteration, destruction, and reformation of rocks as a result of natural processes The Rock Cycle involves the recognition of three main classes of rocks


  4. Sedimentary Rocks Metamorphic Rocks Igneous Rocks


  5. Elements combine to form the natural compounds. Natural compounds and elements combine to form minerals Atoms make up elements Minerals make up rocks. Rocks make up the Earth.


  6. THE gravel, sand, silt, mud, clay, soll ROCK CYCLE Vein calcite ninenl precipitation SEDIMENTS quartz chert travortine (transport and deposition) weathering and erosion compaction and cementatiorn (lithification) conglomerato sand stone mudstone siltstone shale greywacke limestone m2rl chert gypsum salt coal IGNEOUS ROCKS (crystallization) SEDIMENTARY ROCKS (vulcanism) i nUSea rhyolite andesite basalt heat and pressure (metamorphism) METAMORPHIC ROCKS (plutonism) granite di orite gabbro slate, agillite, schist, gneiss, marble, mtasandstone, quartzite, greenstone, serpentin ite, chert breccia


  7. THE ROCK CYCLE Rock Cycle s Sedimentary Rock Igneous Rocks form from molten rock or magma in the subsurface or from lava extruded at the surface Magma Igneous Rock Metamorphic Rock essureandre andTemperater


  8. BECOMING AN IGNEOUS ROCK Any existing rock - igneous, metamorphic or sedimentary can be subjected to enough heat and or pressure causing it Molten rock is called magma. When magma cools to a solid it becomes an igneous rock. The kind of igneous rock formed depends on what was tMuiten rock is called magma. to melt. melted and how it cooled. Igneous rocks are classified based on their mineral composition and texture.


  9. IGNEOUS ROCKS INCLUDE: granite basalt rhyolite granodiorite pegmatite


  10. BECOMING A SEDIMENTARY ROCK Rock Cycle The igneous rock granite can be physically weathered to produce clav and sand s Sedimentary Rock These sediments can be transported; deposited and lithified to form sedimentary rocks Magma Clay can become shale Sand can become sandstone. Igneous Rock Metamorphic Rock Pressureande era dTempe


  11. BECOMING A METAMORPHIC ROCK... If the igneous rock basalt is exposed to sufficient heat and or pressure it can be transformed into the metamorphic rock call metabasalt


  12. THE gravel, sand, silt, mud, clay, soll ROCK CYCLE Vein calcite ninenl precipitation SEDIMENTS quartz chert travortine (transport and deposition) weathering and erosion compaction and cementatiorn (lithification) conglomerato sand stone mudstone siltstone shale greywacke limestone m2rl chert gypsum salt coal IGNEOUS ROCKS (crystallization) SEDIMENTARY ROCKS (vulcanism) i nUSea rhyolite andesite basalt heat and pressure (metamorphism) METAMORPHIC ROCKS (plutonism) granite di orite gabbro slate, agillite, schist, gneiss, marble, mtasandstone, quartzite, greenstone, serpentin ite, chert breccia


  13. THANK YOU