JpGU-AGU Joint Meeting 2020

Session information

[E] Oral

S (Solid Earth Sciences ) » S-IT Science of the Earth's Interior & Techtonophysics

[S-IT27] Oceanic lithosphere and asthenosphere

convener:Nozomu Takeuchi(Earthquake Research Institute, University of Tokyo), Ban-Yuan Kuo(Institute of Earth Sciences, Academia Sinica), Rob L Evans(Woods Hole Oceanographic Institution), Younghee Kim(Seoul National University)

The oceanic lithosphere/asthenosphere system (LAS) is one of the most fundamental features of plate tectonics. In recent years, the elucidation of the oceanic lithosphere/asthenosphere system has become one of the hot topics in solid earth science. New data from the ocean floor are being extensively obtained under the Pacific Array initiative ( and others, and a great variety of views are proposed and discussed. In this session, we will discuss on observation technologies, views of the oceanic lithosphere/asthenosphere system, the strategies for interpretation of the observations (including seismic and/or electrical conductivity anisotropy), constraints/ideas on the role and abundance of water/melt in the mantle (including the transition zone), and other related topics for elucidating this enigmatic system. We call for contributions from diverse fields, including but not limited to seismology, magnetotellurics, petrology/mineralogy, dynamical modelling, and mineral physics.

James Gaherty2, Joshua Russell3, Hannah Mark4, Zhitu Ma5, Colleen Dalton5, Daniel Lizarralde1, Greg Hirth5, John Collins1, *Rob L Evans1 (1.Dept of Geology and Geophysics, Woods Hole Oceanographic Institution, 2.School of Earth and Sustainability, Northern Arizona University, 3.Columbia Univ., Lamont Doherty Earth Observatory, 4.Dept. of Earth and Planetary Sciences, Washington University, St. Louis, 5.Dept. of Earth, Environmental, and Planetary Sciences, Brown Univ)

*Shu-Huei Hung1, Ban-Yuan Kuo2, Pei-Ying Patty Lin3, Yuancheng Gung1, Eh Tan2, Kate Huihsuan Chen3, Ching-Ren Lin2, Chau-Chang Wang5,4, Shuichi Kodaira6, Yasushi Ishihara6, Mamoru Nakamura7 (1.National Taiwan University, Taipei, Taiwan, 2.Academia Sinica, Taipei, Taiwan, 3.National Taiwan Normal University, Taipei, Taiwan, 4.Taiwan Ocean Research Institute, National Applied Research Laboratories, Kaohsiung, Taiwan , 5.National Sun Yat-sen University, Kaohsiung, Taiwan, 6.Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, 7.University of the Ryukyus, Okinawa, Japan)