PPT-Igneous Petrology

7 Continental Flood Basalts Island Arc Magmatism and Continental Arc Magmatism Tamer AbuAlam University of Tromsø The Arctic University of Norway Tamerabualamuitno. ROCKS AND THE ROCK CYCLE. INTRUSIVE IGNEOUS ROCK. Formed under the surface of the earth. Formed from cooling magma. Cools slowly. Forms medium mineral grains. Granite is a light-colored . igneous rock. to. . Petrology. Francis 2014. Introductory Petrology EPSC-212B. Don Francis:. Room: F.D.A. 316, . donald.francis@mcgill.ca. Documents. :. . . www.eps.mcgill.ca. /~c212 . . 1. Igneous. Igneous. rocks form from the solidification or crystallization of minerals in molten material.. If the rock form below the Earth’s surface it is considered . magma. Molten rock that hardens on the Earth’s surface is called . EarthEarth Syenite, Phonolite, . Ijolite. , Carbonatite, Ultramafic Rocks and Lamprophyre. 2. IUGS Intrusive Igneous Rock Chart . 3. General Intrusive Rocks Classification. . 4. Position on IUGS Diagram. Syenites are on the border between the QAP and the APF triangles. Granite, Basalt, Obsidian, Pumice and many others . Igneous Rocks are records of the thermal history of Earth. Most common of all rocks is Granite: . Granite . is a light-colored . igneous rock.  with grains large enough to be visible with the unaided eye.  It forms from the slow crystallization of magma below Earth’s surface.  Granite is composed mainly of quartz and  feldspar with minor amounts of mica, amphiboles and other minerals.   This mineral composition usually gives granite a red, pink, gray or white color with dark mineral grains visible throughout the rock. Syenite, Phonolite, . Ijolite. , Carbonatite, Ultramafic Rocks and Lamprophyre. 2. IUGS Intrusive Igneous Rock Chart . 3. General Intrusive Rocks Classification. . 4. Position on IUGS Diagram. Syenites are on the border between the QAP and the APF triangles. In . Geotechnics. & Applied Geology. Enrollment no. Name Guided By . 130610106006 . Chaudhary. . Dinesh. K. Prof. . V.R.Sharma. 130610106007 . Molten material (aka magma or lava) cools. . L. ava . above the Earth’s surface. M. agma . below the Earth’s . surface. Where . - . Intrusive . Igneous . Rock. IN. trusive. . – . IN. SIDE . the Earth . Sedimentary-sandstone. Metamorphic- gneiss. Igneous- diorite. 1. What is a Rock?. Naturally Occurring . (not man made). Solid. Mixture of minerals other organic matter. 2. What makes a rock different from a mineral?. Introduction to Petrology Francis 2014 Introductory Petrology EPSC-212B Don Francis: Room: F.D.A. 316, donald.francis@mcgill.ca Documents : www.eps.mcgill.ca /~c212 1. Igneous As magma cools underground, it will begin to solidify within Earth’s crust.. Once completely crystallized, these masses of igneous intrusive rock are referred to as INTRUSIONS or as PLUTONS. We will talk about several types of igneous . By David Allison. Igneous Texture. Texture: size, shape and arrangement of constituent mineral grains. Crystallinity: percentage of crystals versus glass, depends on:. Rate of cooling . SiO2 content of magma. . Study . rocks and . minerals. Do geological . field . work. A Little Bit About . Me …. Professor Bob Dymek. Central Kansas. SE Missouri. Virginia. Adirondacks. Labrador. NW Territories. Québec.