Engineering Geology - THE ROCK CYCLE - Lecture Summary
- 1. Benha University Faculty of Engineering at Shoubra Surveying and Geomatics Dep. Engineering Geology (Dr. Hassan Mohamed) 1) Complete the following sentences: a) Main types of rocks are Igneous, Sedimentary and Metamorphic. b) Main types of igneous rocks are Extrusive (Volcanic) and Intrusive (Plutonic). c) Main types of sedimentary rocks are Clastic, Bioclastic and Crystalline. d) The metamorphic rocks are formed because of the change in Pressure and Temperature. e) Extrusive (Volcanic) rocks are formed because of the Quick Cooling of Magma. f) Intrusive (Plutonic) rocks are formed because of the Slow Cooling of Magma. 2) Compare Between: a) Plutonic Rocks and Volcanic Rocks Plutonic Rocks Volcanic Rocks Intrusive Rocks Extrusive Rocks Slow Cooling Fast Cooling Very Coarse Fine/Glassy b) Sedimentary Rocks and Igneous Rocks Sedimentary Rocks Igneous Rocks Formed from Earth Surface Weathering and Erosion Formed from Cooling Magma Clastic, Bioclastic and Crystalline Rocks Plutonic and Volcanic Rocks 3) Draw the Rock Cycle diagram, and Explain it simply: • first things first, magma is erupted at volcanoes and solidifies. • Then the lava from the eruption make two kinds of rocks: (1) Volcanic: at the surface of the crust. (2) Plutonic: in the volcano itself. • The volcanic rocks expose to weathering and erosion and form sediments. • The sediments over years and years form sedimental rocks. • When Sedimental and igneous rocks expose to very high temperature and pressure they form Metamorphic Rocks. • Metamorphic rocks turn to magma again. STUDENT NAME: AHMED YASSER AHMED MOHAMED NASSAR. SECTION NO.: 1 ASSIGNMNENT NAME: CHAPTER 5 SUMMARY.