PPT-1 Petrology Lecture 7

MidOcean Ridge Volcanism GLY 4310 Spring 2017 2 MOR System 3 MOR Spreading Rates 4 Oceanic Crust CrossSection Figure 135 Modified after Brown and Mussett 1993 The Inaccessible Earth An Integrated View of Its Structure and Composition Chapman amp Hall London. 30pm 730pm 730pm 730pm Hold Your Applause Inventing and Reinventing the C lassical Concert Hold Your Applause Inventing and Reinventing the C lassical Concert Hold Your Applause Inventing and Reinventing the C lassical Concert Hold Your Applause I 22x1 lecture 14x1 lecture 14UIC UIC BioSBioS 101 Nyberg101 NybergReading AssignmentReading Assignment Chapter 12, study the figures and Chapter 12, study the figures and understand the color coding.un EENS 2120 Petrology Prof. Stephen A. Nelson Tulane University Magmatic Differentiation related to the same magmatic event. Evidence fo ess that causes magma magmatic differentiation. 1.Distinct melti LIN SUTHERLAND Mineralogy and Petrology Section, Australian Museum, 6 College Street, Sydney, N.S.W. 2000, Australia ROBERT R. COENRAADS Association of Australia (N.S.W. Division), 24 Wentworth Avenue Igneous Rock Textures. GLY 4310 - Spring, . 2016. 2. Primary. Form during solidification. They result from interactions between mineral crystals and melt. 3. Secondary. Develop by alteration of the rock after crystallization. Gautam Sen. Flood Basalts & Hot Spot Tracks. “Plume Heads & Tail” Model. Central Atlantic Magmatic Province (CAMP). Flood Basalts & Mass Extinctions. Columbia River Basalt. FeO* & TiO. 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. Oceanic Intraplate Volcanism. GLY 4310 - Spring, 2017. 2. Hot Spots, Trails, and . Aseismic Ridges. Figure 14.1. . Map of relatively well-established hotspots and selected hotspot trails (island chains or aseismic ridges). Hotspots and trails from Crough (1983) with selected more recent hotspots from Anderson and Schramm (2005). Also shown are the geoid anomaly contours of Crough and Jurdy (1980, in meters). Note the preponderance of hotspots in the two major geoid highs (superswells).. 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.. . 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.