V11B:
Peridotite Records of Mantle Dynamics Posters


Session ID#: 7807

Session Description:
Mantle peridotites inform our understanding of the physical and chemical evolution of Earth’s interior. Recent advances in analytical methods and the development of novel geochemical tools allow us to unravel the histories of peridotites in unprecedented detail. This session aims to integrate studies of ophiolitic peridotites, abyssal peridotites and mantle xenoliths, placing constraints on mantle dynamics. Abstracts on field and experimental studies relevant to melt migration, melt-rock reaction, trace element partitioning, diffusion, or other mantle-related topics are encouraged, as well as models that can be used to improve understanding of the physical, chemical, and thermal evolution of Earth’s mantle. Emphasis will be placed on contributions that combine field studies, experimental work, and/or numerical models to interpret samples in new ways, and studies of petrologic, geochemical, or isotopic variations at the grain, outcrop, or whole-mantle scale that inform us about dynamic processes in the mantle.
Primary Convener:  Nicholas J Dygert, University of Texas at Austin, Austin, TX, United States
Conveners:  Chenguang Sun, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Jessica M Warren, University of Delaware, Newark, DE, United States and Johan C J Lissenberg, Cardiff University, Cardiff, United Kingdom
Chairs:  Nicholas J Dygert, University of Texas at Austin, Austin, TX, United States and Chenguang Sun, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
OSPA Liaison:  Nicholas J Dygert, University of Texas at Austin, Austin, TX, United States

Cross-Listed:
  • T - Tectonophysics
Co-Sponsor(s):
  • GS: Geochemical Society - Geochemical Society
Index Terms:

1009 Geochemical modeling [GEOCHEMISTRY]
1025 Composition of the mantle [GEOCHEMISTRY]
3621 Mantle processes [MINERALOGY AND PETROLOGY]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Can LREE Enriched Patterns in Clinopyroxenes in Abyssal Peridotites be Produced by Melting of a Depleted Mantle Source? (Invited) (59318)
Yan Liang, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States and Boda Liu, Brown University, Providence, RI, United States
Inheritance and refertilization of Upper Mantle rocks in Alpine type orogens and rift systems: what and why (Invited) (59774)
Othmar Muntener, University of Lausanne, Institute of Earth Sciences, Lausanne, Switzerland
Timing of melt migration and pyroxenite formation in the mantle (Invited) (59962)
Véronique Le Roux, Woods Hole Oceanographic Institution, Geology & Geophysics Department, Woods Hole, MA, United States, Chenguang Sun, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Sune Nielsen, Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, United States and Lijing Yao, Brown University, Providence, RI, United States
Grain Size as a Control for Melt Focusing Beneath Mid-Ocean Ridges (Invited) (60768)
Andrew Turner1, Richard F Katz1 and Mark D Behn2, (1)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (2)Woods Hole Oceanographic Institution, Geology and Geophysics, Woods Hole, MA, United States
Sodium Inverse Relationships During Melting in Ultraslow Spreading Regions: Insights from SWIR-Smoothseafloor Peridotites (62199)
Daniele Brunelli, Woods Hole Oceanographic Institution, Woods Hole, United States, Mathilde Cannat, Marine Geosciences, Institut de Physique du Globe de Paris, UMR 7154 -CNRS, Université de Paris, Paris, France, Marine Paquet, Institut de Physique du Globe de Paris, Paris, France, Marie Catherine Sforna, University of Modena and Reggio Emilia, Modena, Italy and Monique Seyler, University of Lille 1, Villeneuve d'Ascq, France
Application of Markov Chain Monte Carlo Method to Mantle Melting: An Example from REE Abundances in Abyssal Peridotites (63317)
Boda Liu and Yan Liang, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States
Paleo-Asian oceanic subduction-related modification of the lithospheric mantle under the North China Craton: evidence from peridotite xenoliths in the Datong basalts (66065)
Chengyuan Wang1, Yongsheng Liu1, Ning Min2, Keqing Zong1, Zhaochu Hu2 and Shan Gao2, (1)China University of Geosciences Wuhan, Wuhan, China, (2)China University of Geosciences, Wuhan, China
Presumed Multiple Metasomatism underneath the Colorado Plateau; Decoding from Chemistry and Inclusion/Lamella Mineralogy of Diverse Garnets from the Garnet Ridge, Northern Arizona (71537)
Yuto Sato and Yoshihide Ogasawara, Waseda University, Tokyo, Japan
Magma Supply at the Arctic Gakkel Ridge: Constraints from Peridotites and Basalts (74692)
Chenguang Sun1, Henry J Dick1, Eric Hellebrand2 and Jonathan E Snow3, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)University of Hawaii at Manoa, Honolulu, HI, United States, (3)Louisiana State University, Department of Geology & Geophysics, Baton Rouge, United States
GROUP II XENOLITHS FROM LUNAR CRATER VOLCANIC FIELD, CENTRAL NEVADA: EVIDENCE FOR A KINKED GEOTHERM (81586)
Michael Roden, Jake Mosely and John Norris, Univ Georgia, Athens, GA, United States
Investigating Mantle Sources of Basaltic Melts Using Olivine LA-ICPMS Analysis, Mount Taylor Volcanic Field, New Mexico (82629)
Christian M Schrader1, Mariek E Schmidt2, Alicia Thomas2, Julia G Bryce3 and Maria Florencia Fahnestock4, (1)Bowdoin College, Brunswick, ME, United States, (2)Brock University, St Catharines, ON, Canada, (3)University of New Hampshire, Department of Earth Sciences, Durham, United States, (4)University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States
Using a Numerical Model to Quantitatively Assess Dynamic Recrystallization as a Mechanism for He Enrichment in Mantle Shear Zones (84459)
Kate Kaminski1, Eric L Mittelstaedt1, Jessica M Warren2, Mark D Kurz3 and Kathryn M. Kumamoto4, (1)University of Idaho, Moscow, ID, United States, (2)University of Delaware, Newark, DE, United States, (3)WHOI, Woods Hole, MA, United States, (4)University of Minnesota - Twin Cities, Department of Earth and Environmental Sciences, Minneapolis, United States

See more of: Volcanology, Geochemistry and Petrology