DI23A:
Diverse Perspectives on the Lithosphere and the Asthenosphere III Posters

Submit an Abstract to this Session



Session ID#: 23581

Session Description:
The lithosphere-asthenosphere boundary (LAB) separates Earth’s rigid tectonic plates from the underlying convecting mantle. Tractions, thermal gradients, compositional differentiation, fluid/melt accumulation, crystallographic fabrics, and grain size heterogeneity have all been suggested to occur at (or near) this interface. How this boundary is expressed in different tectonic settings and how it relates to other seismic and magnetotelluric discontinuities including the Moho and mid-lithospheric discontinuities (MLDs) is a topic of ongoing vigorous debate. We will focus on the lithosphere-asthenosphere system in a variety of settings including but not limited to continents, oceans, margins, rifts, ridges, hotspots, plumes, and subduction zones. We welcome research contributions from diverse fields, including but not limited to seismology, magnetotellurics, petrology/mineralogy, dynamical modelling, and mineral physics.
Primary Convener:  Nicholas C Schmerr, University of Maryland College Park, Department of Geology, College Park, MD, United States; University of Maryland, Department of Geology, College Park, United States
Conveners:  Catherine Rychert, Woods Hole Oceanographic Institution, Ocean and Earth Science, Woods Hole, MA, United States, Zachary Eilon, University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States and Shuwen Dong, Scripps Institution of Oceanography, La Jolla, United States
Chairs:  Catherine Rychert, Woods Hole Oceanographic Institution, Ocean and Earth Science, Woods Hole, MA, United States and Nicholas C Schmerr, University of Maryland College Park, Department of Geology, College Park, MD, United States
OSPA Liaison:  Shuwen Dong, Scripps Institution of Oceanography, La Jolla, United States
Index Terms:

3999 General or miscellaneous [MINERAL PHYSICS]
7208 Mantle [SEISMOLOGY]
7218 Lithosphere [SEISMOLOGY]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]

Abstracts Submitted to this Session:

A receiver function investigation of the Lithosphere beneath Southern California using Wavefield Iterative Deconvolution(WID) (243955)
Ailiyasi Ainiwaer, Texas Tech University, Lubbock, TX, United States and Harold Gurrola, Texas Tech University, Geosciences, Lubbock, TX, United States
Lithospheric Layering beneath the Contiguous United States Constrained by S-to-P Receiver Functions (211067)
Lin Liu, Kelly Hong Liu, Fansheng Kong and Stephen S Gao, Missouri University of Science and Technology, Geology and Geophysics Program, Rolla, MO, United States
North American Crust and Upper Mantle Structure Imaged Using an Adaptive Bayesian Inversion (232642)
Zachary Eilon, University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States, Karen M Fischer, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States and Colleen A Dalton, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States
Evidence for Depth-Dependent Metasomatism in Cratonic Lithosphere (270982)
Thomas Eeken1, Saskia D B Goes1, Helle Pedersen2, Nicholas T Arndt3 and Pierre Bouilhol4, (1)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (2)ISTerre Institute of Earth Sciences, CNRS, Université Joseph Fourier, Grenoble, France, (3)Université Grenoble Alpes, ISTerre, Grenoble, France, (4)University Blaise Pascal Clermont-Ferrand II, Clermont-Ferrand, France
Illuminating the Sierra Nevada Pn Shadow Zone with 2.5D Full-waveform Forward Modeling (287727)
Kyren R. Bogolub, University of Colorado Boulder, Boulder, CO, United States, Craig H Jones, University of Colorado at Boulder, Boulder, CO, United States and Steven W Roecker, Rensselaer Polytechnic Inst, Earth & Environmental Sciences, Troy, United States
Structure of the mantle lithosphere in continental collision zones of Europe, North America and China from S-receiver functions (251482)
Rainer Kind, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany; Free University of Berlin, Fachrichtung Geophysik, Berlin, Germany and Xuzhang Shen, China Earthquake Administration, Lanzhou, China
The Lithosphere-asthenosphere Boundary beneath the South Island of New Zealand (246633)
Junlin Hua, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States, Karen M Fischer, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States and Martha K Savage, Victoria University of Wellington, Wellington, New Zealand
The lithosphere-asthenosphere boundary beneath the Korean Peninsula from S receiver functions (234293)
Sang-Hyun Lee and Junkee Rhie, Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea
Lithosphere mantle density of the North China Craton based on gravity data (239817)
Bing Xia, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, Irina M M Artemieva, University of Copenhagen, København K, Denmark and Hans Thybo, Chinese Academy of Geological Sciences, Chinese Academy of Geological Sciences, Beijing, China
The role of lithospheric strength heterogeneities in the dynamics of Tienshan and neighbouring regions (230582)
Kai Wang, Xiong Xiong, Xinghua Hao and Jun Li, Chinese Academy of Sciences Institute of Geodesy and Geophysics, Wuhan, China
Structure of Lithospheric and Upper Mantle Discontinuities beneath Central Mongolia from Receiver Functions (272917)
Zhongxiong Cui1, Anne Meltzer2, Karen M Fischer3, Josh C Stachnik4, Ulzibat Munkhuu5, Baasanbat Tsagaan5 and Raymond M Russo6, (1)Lehigh University, Bethlehem, PA, United States, (2)Lehigh University, Earth and Environmental Sciences, Bethlehem, PA, United States, (3)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States, (4)Instrumental Software Technologies, Inc., Saratoga Springs, United States, (5)Institute of Astronomy and Geophysics, Ulaanbaatar, Mongolia, (6)University of Florida, Geological Sciences, Gainesville, United States
Lithospheric thickness variations across the North Anatolian Fault Zone (285817)
David A Thompson, Cardiff University, Cardiff, CF24, United Kingdom, Sebastian Rost, The University of Leeds, Leeds, United Kingdom, David G Cornwell, University of Aberdeen, Aberdeen, United Kingdom, Greg Houseman, University of Sydney, School of Geosciences, Sydney, Australia, Niyazi Turkelli, Kandilli Observatory, Istanbul, Turkey, Ugur Teoman, Bogazici University, Cengelkoy Istabul, Turkey, Selda Altuncu Poyraz, Kandilli Observatory and Earthquake Research Institute, Regional Eartquake and Tsunami Monitoring Center, Istanbul, Turkey, Metin Kahraman PhD, B.U. Kandilli Observatory, Istanbul, Turkey, Levent Gülen, Sakarya University, Sakarya, Turkey, Murat Utkucu, Sakarya University, Geophysics, Sakarya, Turkey and Joshua Richard Williams, University of Exeter, Exeter, United Kingdom
Crustal structure of an exhumed IntraCONtinental Sag (ICONS): the Mekele Basin in Northern Ethiopia. (298648)
Tadesse Berhanu Alemu and Mohamed Abdelsalam, Oklahoma State University Main Campus, Boone Pickens School of Geology, Stillwater, OK, United States
Tomographic imaging of the mantle and the crust beneath the Mid-Atlantic Ridge, with direct sparse algorithms and OBS data collected during the PILAB experiment. (262589)
Petros Bogiatzis1, Catherine Rychert2, Nicholas Harmon1 and J Michael Kendall3, (1)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (2)Woods Hole Oceanographic Institution, Ocean and Earth Science, Woods Hole, MA, United States, (3)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Macroscopic Strength of Oceanic Lithosphere Revealed by Ubiquitous Fracture-Zone Instabilities (239837)
Cécilia Cadio, Géosciences Montpellier, Montpellier Cedex 05, France and Jun Korenaga, Yale University, Department of Earth and Planetary Sciences, New Haven, CT, United States
Asthenospheric Temperature and Lithospheric Thickness Beneath the Tristan da Cunha Hotspot From Probabilistic Inversion of Surface-Wave Dispersion Data and Petrological Modeling (250882)
Raffaele Bonadio1, Wolfram H. Geissler2, Sergei Lebedev1, Matteo Ravenna1, Javier Fullea3, Nicolas Luca Luca Celli1, Wilfried Jokat4, Marion Jegen5, Christoph Sens-Schönfelder6 and Kiyoshi Baba7, (1)Dublin Institute for Advanced Studies, Dublin, Ireland, (2)Alfred-Wegener-Institut, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, (3)Complutense University of Madrid, Physics of the Earth and Astrophysics, Madrid, Spain, (4)Alfred Wegener Inst, Bremerhaven, Germany, (5)GEOMAR Helmholtz Centre of Ocean Research Kiel, Kiel, Germany, (6)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (7)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan
In situ rheology of the oceanic lithosphere along the Hawaiian ridge (247473)
Alexandra Pleus1, Garrett Ito2, Paul Wessel1 and L Neil Frazer1, (1)University of Hawaii at Manoa, Honolulu, HI, United States, (2)University of Hawaii, Department of Earth Sciences, Honolulu, United States
Bridging the gap between the deep Earth and lithospheric gravity field (220209)
Barend Cornelis Root, Delft University of Technology, Delft, Netherlands, Joerg Ebbing, University of Kiel, Kiel, Germany, Zdenek Martinec, Dublin Institute for Advanced Studies, School of Cosmic Physics, Dublin, Ireland and Wouter van der Wal, Delft University of Technology, Faculty of Aerospace Engineering, Delft, Netherlands
Analysis of Lithospheric Stresses Using Satellite Gravimetry: Hypotheses and Applications to North Atlantic (249205)
Alexander Minakov, University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway and Sergei Medvedev, University of Oslo, Centre for Earth Evolution and Dynamics, Oslo, Norway

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