T43A:
Current Understanding of Large Igneous Provinces, Hot Spot Tracks, and Mantle Plumes I


Submit an Abstract to this Session


Session ID#: 57146

Session Description:
Hotspot tracks and large igneous provinces (LIPs) are surface features often attributed to focused mantle upwellings (mantle plumes). As observations conflicted with early, purely thermal plume models, more complex models were developed, including variations in time and chemical composition. Plume upwellings may originate at several levels in the mantle and many likely have a link to large low shear-wave velocity provinces (LLSVPs) near the core-mantle boundary. However, the role of plumes in some LIPs is a matter of debate. Hotspot volcanic chains display complexities in age progression, plume motion, geochemistry and tectonic evolution that imply modulation of volcanism by mantle convection and plate tectonic processes. We seek contributions from various perspectives, including geochronology, geochemistry, geophysics, and volcanology that present new data, models, or interpretations about LIPs, hotspot tracks and mantle plumes.
Primary Convener:  William W Sager, University of Houston, Department of Earth and Atmospheric Sciences, Houston, United States
Conveners:  Anthony Koppers, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Cornelia Class, Lamont -Doherty Earth Observatory of Columbia University, Palisades, United States and Trond Helge Torsvik, University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway
Primary Liaison:  William W Sager, University of Houston, Department of Earth and Atmospheric Sciences, Houston, United States
Chairs:  William W Sager, University of Houston, Department of Earth and Atmospheric Sciences, Houston, United States and Cornelia Class, Lamont -Doherty Earth Observatory of Columbia University, Palisades, United States
OSPA Liaison:  William W Sager, University of Houston, Department of Earth and Atmospheric Sciences, Houston, United States
Co-Organized with:
Tectonophysics, and Volcanology, Geochemistry and Petrology

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
  • V - Volcanology, Geochemistry and Petrology

Proposed Co-Organized Session with:
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1038 Mantle processes [GEOCHEMISTRY]
1115 Radioisotope geochronology [GEOCHRONOLOGY]
8137 Hotspots, large igneous provinces, and flood basalt volcanism [TECTONOPHYSICS]
8450 Planetary volcanism [VOLCANOLOGY]

Abstracts Submitted to this Session:

The Burkian Earth (346047)
Trond Helge Torsvik, University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway
Origin of the LLSVPs at the base of the mantle is a consequence of plate tectonics: A petrological and geochemical perspective (375674)
Yaoling Niu, China University of Geosciences Beijing, Beijing, China; Durham University, Durham, United Kingdom
Geochemistry of Large, Low Shear-Wave Velocity Provinces in the Lower Mantle Inferred from Nd and Pb Isotopes in Oceanic Hotspots (444090)
Matthew G Jackson, University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States, Thorsten W Becker, University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States and Jasper G Konter, University of Hawaiʻi at Manoa, Honolulu, United States
A plate tectonic origin of kimberlites on a cooling Earth (387020)
Sebastian Tappe, University of Johannesburg, Auckland Park, South Africa, Katie A Smart, University of the Witwatersrand, School of Geosciences, Johannesburg, South Africa, Trond Helge Torsvik, University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway, Malcolm Massuyeau, UMR 7327 - CNRS/Université d'Orléans, ORLEANS, France, Andreas Stracke, Westfälische Wilhelms-Universität Münster, Institut für Mineralogie, Münster, Germany, Gerrit Budde, Universität Münster, Münster, Germany and Thorsten Kleine, University of Münster, Institut für Planetologie, Münster, Germany
Zircon U-Pb age constraints on purported Cretaceous hotspot magmatism in northern New England and Quebec (447549)
Sean Kinney, Rutgers University, Piscataway, United States, Scott Angus MacLennan, Princeton University, Princeton, NJ, United States, Jacob Setera, Rutgers University New Brunswick, New Brunswick, NJ, United States, Blair Schoene, Princeton University, Department of Geosciences, Princeton, United States and Paul E Olsen, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Northward motion of the Azores mantle plume over the last 85 Ma (384048)
Maelis Arnould, Ecole Normale Supérieure de Lyon, Laboratoire des Sciences de la Terre, Lyon, France, Jérôme Ganne, IRD Institute for Research and Development, UR 234, GET, Université Toulouse III, Toulouse, France, Nicolas Coltice, Ecole Normale Supérieure Paris, Paris, France and Xiaojun Feng, China University of Mining and Technology, School of Safety Engineering, Jiangsu, China
Geodynamic Reconstruction of the Deep-Mantle Origin of Paleocene Doming and Volcanism in the North Atlantic (435674)
Alessandro M Forte, Institut de Physique du Globe de Paris, Géomagnétisme, Paris, France; Université du Québec à Montréal, Sciences de la Terrre et de l'Atmosphère, Montreal, Canada and Petar Glisovic, Queen's University, Geological Sciences and Geological Engineering, Kingston, ON, Canada
Receiver function imaging at the crust and uppermost mantle of Ontong Java Plateau (429566)
Takashi Tonegawa1, Daisuke Suetsugu2, Seiichi Miura3, Hajime Shiobara4, Hiroko Sugioka5, Aki Ito2, Takehi Isse6, Yasushi Ishihara7, Satoru Tanaka2, Masayuki Obayashi8, Junko Yoshimitsu2 and Takumi Kobayashi9, (1)JAMSTEC, Research Institute for Marine Geodynamics, Yokohama, Japan, (2)JAMSTEC, Yokosuka, Japan, (3)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (4)University of Tokyo, Bunkyo-ku, Japan, (5)Kobe University, Kobe, Japan, (6)The University of Tokyo, Tokyo, Japan, (7)JAMSTEC, Yokohama, Japan, (8)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, Kanagawa, Japan, (9)Kobe University, Hyogo, Japan

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