PPT-Introduction to Petrology

Introduction to Petrology Francis 2014 Introductory Petrology EPSC212B Don Francis Room FDA 316 donaldfrancismcgillca Documents wwwepsmcgillca c212 1 Igneous. Gautam Sen. Plates & Mid-oceanic 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. 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. Gautam Sen. Formation of Solar System. Earth’s Internal Layering. Origin of Earth’s Layers. Origin of Layering. Origin of Layering. Plates. Types of Plate Boundaries. Types of Plate Boundaries. Pangaea. 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 Oceanic Intraplate Volcanism. GLY 4310 - Spring, 2016. 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 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. Theda. . Strickler. , . with faculty sponsor Dr. . Chris A. . Barker, Department of Geology. ABSTRACT. STUDY AREA. Analysis of thin sections from the Wind Mountain quadrangle, Burro Mountains, NM, near the Tyrone copper mine, reveals a complex geologic history. Rock samples collected in the study area were cut using a rock saw and thin sections were prepared and analyzed to determine mineral content and fabric patterns. The oldest rocks in the study area are strongly metamorphosed and locally . 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.. 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.. Metamorphic Facies. GLY 4310 - Spring, 2017. 2. Alternative Assemblages, Oslo. MgSiO. 3. + CaAl. 2. Si. 2. O. 8. = CaMgSi. 2. O. 6. + Al. 2. SiO. 5. . . En. + An = Di + And.