PPT-Petrology Chapter 8

Gautam Sen Plates amp Midoceanic Ridges Types of Spreading Center Ridge offset by a Transform fault Overlapping Spreading Center Continuous Ridge Axis with a small bend Relief map of EPR. 209 INTRODUCTION Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, Moscow, 117975 RussiaReceived December 20, 1995 PETROLOGYVol. 4 MELT INCLUS EarthEarth of Metamorphic Petrology Data. Patrick West. 1 (. westp@. rpi.edu. ). , . Peter Fox. 1(. pfox@cs.rpi.edu. ). , Frank Spear. 2. (. spearf@rpi.edu. ). ,. Sibel. Adali. 3. (. sibel@cs.rpi.edu. ). , Cam Le Nguyen. Igneous Structures and . Field Relationships. GLY 4310 - Spring, 2016. 2. Viscosity and Temperature. Anhydrous rhyolitic magma . 1400. °. C - 10. 5. poise. 1000. °. C - 10. 8. poise. 3. Viscosity and Composition. granitoids. of the northern part of Adamawa Massif, N.E Nigeria. I.V. . . Haruna. Department of Geology. Modibbo. . Adama. University of Technology, . Yola. - Nigeria. ORDER OF PRESENTATION. Introduction. Mid-Ocean Ridge Volcanism. GLY 4310 - Spring, 2017. 2. MOR System. 3. MOR Spreading Rates. 4. Oceanic Crust Cross-Section. Figure 13-5 . Modified after Brown and . Mussett. (1993) . The Inaccessible Earth: An Integrated View of Its Structure and Composition. Chapman & Hall. London.. Gautam Sen. Classification of Basalts. AFM Diagram. Crystal Settling vs. Flotation. Crystal-liquid movement in a thick sill. Palaisades. Sill, NJ. Picture credit: Kevin . Chau. , FIU. Origin of Lunar Highlands . Igneous Structures and . Field Relationships. GLY 4310 - Spring, 2017. 2. Viscosity and Temperature. Anhydrous rhyolitic magma . 1400. °. C - 10. 5. poise. 1000. °. C - 10. 8. poise. 3. Viscosity and Composition. Classification and Nomenclature of Igneous Rocks. . GLY 4310 - Spring, 2017. 2. Igneous Textures. Phaneritic:. Crystals are readily visible with the unaided eye.. Aphanitic:. Crystals, if present, are too small to be seen with the unaided eye.. Gautam Sen. Sedimentary Rock Classification . Matrix. Cement. Siderite cement. Dolomite cement. Classification of . Terrigenous. Rocks. Dott’s. Classification of sandstones. Folk’s Classification of Sandstones. Igneous Rock Textures. GLY 4310 - Spring, 2017. 2. Primary. Form during solidification. They result from interactions between mineral crystals and melt. 3. Secondary. Develop by alteration of the rock after crystallization. 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 . 7: . Continental Flood . Basalts, . Island Arc . Magmatism and . Continental Arc Magmatism. Tamer Abu-Alam. University . of . Tromsø. – The Arctic University of . Norway. Tamer.abu-alam@uit.no. . 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.