V33C:
Heterogeneity in the Earth's Interior: The Ongoing Processes of Differentiation II Posters


Session ID#: 10936

Session Description:
Earth’s interior is compositionally heterogeneous owing to differentiation processes from early in Earth’s history and through the on-going recycling of lithosphere by modern plate tectonics.  The nature and distribution of these heterogeneities have implications for the convective vigor of Earth’s mantle, its rhealogical structure, processes of magma generation, and the volatile inventory of the whole Earth system.  This session aims for a multi-disciplinary exploration of the nature and fate of mantle heterogeneities in a convective regime , role of heterogeneties in the melting process across tectonic settings, residence times for chemical heterogeneities in the mantle, and the evidence for primordial reservoirs in the deep Earth.  We encourage contributions from all fields including field observations, analytical geochemistry, experimental geophysics and petrology, and numerical modeling.
Primary Convener:  Fred A Davis, Smithsonian Institution, Washington, DC, United States
Conveners:  Sujoy Ghosh, Indian Institute of Technology Kharagpur, Department of Geology & Geophysics, Kharagpur, India and Ananya Mallik, Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany
Chairs:  Ananya Mallik, Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany and Sujoy Ghosh, Indian Institute of Technology Kharagpur, Department of Geology & Geophysics, Kharagpur, India
OSPA Liaison:  Sujoy Ghosh, Indian Institute of Technology Kharagpur, Department of Geology & Geophysics, Kharagpur, India

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • MR - Mineral and Rock Physics
Co-Sponsor(s):
  • GS: Geochemical Society - Geochemical Society
Index Terms:

1025 Composition of the mantle [GEOCHEMISTRY]
3610 Geochemical modeling [MINERALOGY AND PETROLOGY]
3621 Mantle processes [MINERALOGY AND PETROLOGY]
7208 Mantle [SEISMOLOGY]

Abstracts Submitted to this Session:

Application of the 138La-138Ce systematics as tracer of recycled sediment in the mantle (60821)
Maud Boyet1, Nina Bellot2, Régis Doucelance2, Christian Pin2, Catherine Chauvel3, Tim Elliott4, Terry A Plank5 and Ivan P Savov6, (1)CNRS, Clermont-Ferrand, France, (2)Laboratoire Magmas et Volcans, Unviersité Blaise Pascal, Clermont-Ferrand, France, (3)Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, Paris, France, (4)University of Bristol, Bristol, United Kingdom, (5)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (6)University of Leeds, Leeds, LS2, United Kingdom
Dihedral angle of carbonatite melts in mantle residue near the upper mantle and transition zone (77385)
Sujoy Ghosh, Indian Institute of Technology Kharagpur, Department of Geology & Geophysics, Kharagpur, India, Arno Rohrbach, Institute of Geochemistry and Petrology, ETH, Zuerich, Switzerland and Max W Schmidt, ETH Zurich, Zurich, Switzerland
High Pressure Experimental Investigation of the Interaction between Partial Melts of Eclogite and Mantle Peridotite during Upwelling (69063)
Zsanett Pinter1, Anja Rosenthal1, Daniel J Frost2, Catherine A McCammon3, Heidi E Höfer4, Gregory Mark Yaxley5, Andrew Berry6, Alan B Woodland7, Prokopiy Vasilyev8 and Graham Pearson9, (1)Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany, (2)University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, (3)University of Bayreuth, Bayreuth, Germany, (4)Goethe University, Institut für Geowissenschaft, Frankfurt am Main, Germany, (5)Australian National University, Canberra, ACT, Australia, (6)Australian National University, Canberra, Australia, (7)Univ Frankfurt, Frankfurt, Germany, (8)Australian National University, Research School of Earth Sciences, Canberra, Australia, (9)University of Alberta, Earth and Atmospheric Sciences, Edmonton, AB, Canada
Origin and Role of Recycled Crust in Flood Basalt Magmatism: Case Study of the Central East Greenland Rifted Margin (79149)
Eric Brown, Aarhus University, Centre of Earth System Petrology, Department of Geoscience, Aarhus C, Denmark and Charles E Lesher, University of California, Davis, Department of Earth & Planetary Sciences, Davis, United States
Ubiquitous radiogenic Os in Miocene to recent basalts from diverse mantle domains beneath the Colorado Plateau, USA (82193)
Tyler Schlieder, Northern Arizona University, Geology, Flagstaff, AZ, United States, Mary R Reid, Northern Arizona University, School of Earth Sciences and Environmental Sustainability, Flagstaff, AZ, United States, Elisabeth Widom, Miami University Oxford, Oxford, OH, United States and Janne Blichert-Toft, Ecole Normale Supérieure de Lyon, CNRS, and Université de Lyon, Lyon, France
Isotopic Constraints on Magmatic Sources at Nyiragongo and Nyamulagira Volcanoes, Virunga Volcanic Province, DR Congo (67499)
Erin H W Phillips1, Kenneth W W Sims2, Dario Tedesco3, Janne Blichert-Toft4, Sean R Scott1 and Mark K Reagan5, (1)University of Wyoming, Laramie, WY, United States, (2)University of Wyoming, Geology & Geophysics, Laramie, United States, (3)Second University of Naples, Naples, Italy, (4)Ecole Normale Supérieure de Lyon, CNRS, and Université de Lyon, Lyon, France, (5)University of Iowa, Department of Geoscience, Iowa City, IA, United States
Major and Trace Element Geochemistry of the Mafic Magmatic Rocks from the Betul Mobile Belt, Central Indian Tectonic Zone (77850)
Anirban Choudhury, Self Employed, Washington, DC, United States and Arundhuti Ghatak, Indian Institute of Science Education and Research Bhopal, Department of Earth & Environmental Sciences, Bhopal, India
Genesis and Eruptive Dynamics of the Garnet-Bearing Rhyolites from the Ramadas Volcanic Centre (Altiplano-Puna Plateau, Central Andes, Argentina). (61375)
Gianfilippo De Astis1, Walter Baez2, Lorenzo Bardelli3, Raul Becchio2, Guido Giordano3, Federico Lucci3, Federico Rossetti3 and Jose G Viramonte4, (1)National Institute of Geophysics and Volcanology, Rome, Italy, (2)Universidad Nacional de Salta, Instituto Geonorte-INENCO, Salta, Argentina, (3)Università degli Studi Roma Tre, Dipartimento di Scienze, Roma, Italy, (4)UNSA-CONICET, Salta, Argentina
What We Have Learned About the Existing Trace Element Partitioning data During the Population Phase of traceDs (65157)
Roger L Nielsen1, Mark S Ghiorso2 and Thomas Trischman1, (1)Oregon State University, Corvallis, OR, United States, (2)OFM Research, Redmond, CA, United States

See more of: Volcanology, Geochemistry and Petrology