PPT-1 Petrology Lecture 8 Oceanic Intraplate Volcanism

GLY 4310 Spring 2018 2 Hot Spots Trails and Aseismic Ridges Figure 141 Map of relatively wellestablished 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. (LVZ) at the top of the . subducting. plate has been detected in a majority of . subduction. zones.. LVZ may be a . hydrated layer of oceanic crust . caused by dehydration reactions as the plate . 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. 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).. Introduction to Metamorphism. GLY 4310 - Spring, 2016. 2. Metamorphism Definition. “The mineralogical, chemical, and structural adjustment of solid rocks to physical and chemical conditions which differ from the conditions under which the rocks in question originated” (from the Glossary of geology, 2nd edition) . Mid-Ocean Ridge Volcanism. GLY 4310 - Spring, 2016. 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.. Cryo. -volcanism. Earth’s Interior. Volcano Structure. Earth’s Tectonic Plates. Hawaii and Olympus Mons. Hawaiian Islands. Olympus Mons. Volcanism on Mars. Volcanism on Io. 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).. 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.. Introduction to Metamorphism. GLY 4310 - Spring, 2017. 2. Metamorphism Definition. “The mineralogical, chemical, and structural adjustment of solid rocks to physical and chemical conditions which differ from the conditions under which the rocks in question originated” (from the Glossary of geology, 2nd edition) . In . Geotechnics. & Applied Geology. Enrollment no. Name Guided By . 130610106006 . Chaudhary. . Dinesh. K. Prof. . V.R.Sharma. 130610106007 . 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 Bro. ž. , P., Hauber, E., Wray, J., Michael, G. (2017) “. Amazonian volcanism inside Valles Marineris on Mars. ”. Earth and Planetary Science Letters,. 473, 122–130. , . doi:. . 10.1016/j.epsl.2017.06.003. . 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. subducting. plate has been detected in a majority of . subduction. zones.. LVZ may be a . hydrated layer of oceanic crust . caused by dehydration reactions as the plate . subducts. .. LVZ has interesting consequences for imaging the .