Solid Earth Sciences (S)
Session Sub-category Science of the Earth's Interior & Tectonophysics(IT)
Session ID S-IT20
Title Coupling of deep Earth and surface processes
Short Title Deep Earth-surface coupling
Main Convener Name YoungHee Kim
Affiliation Seoul National University
Co-Convener 1 Name Jin-Oh Park
Affiliation Department of Ocean Frontier GeoScience, Atmosphere and Ocean Research Institute, The University of Tokyo
Co-Convener 2 Name Takehi Isse
Affiliation Earthquake Research Institute University of Tokyo
Co-Convener 3 Name Hyunwoo Lee
Affiliation Seoul National University
Co-Convener 4 Name Jih-Hsin Chang
Affiliation Institute of Oceanography, National Taiwan University
Session Language 
E
Scope 
Feedbacks between surface and deep Earth processes play a key role in plate tectonics influencing mountain building rifting magmatism intraplate deformation and the interactions between landscape and climate
Although individual processes have been extensively studied in recent decades their coupling remains poorly constrained
This session will focus on the mechanisms linking lithospheric deformation and rheology with surface processes such as erosion and sedimentation across a wide range of spatiotemporal scales
Particular emphasis will be placed on the role of deep Earth processes including mantle flow subduction dynamics and slab mantle interaction in shaping both plate boundary and intraplate regions
We invite contributions that explore these couplings through numerical modeling field investigations laboratory experiments and theoretical developments
By integrating studies from subduction zones and mid ocean ridges to intraplate domains this session seeks to advance understanding of how Earths interior interacts with its surface and to foster interdisciplinary collaboration
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
Oral Presentation May 25 AM1
9:00 - 9:15 SIT20-01 Whole-mantle azimuthal anisotropy beneath Greenland and surrounding regions Genti Toyokuni
9:15 - 9:30 SIT20-02 Mantle Transition Zone Topography in New Zealand from Teleseismic P-wave Receiver Functions Quan Zhang
9:30 - 9:45 SIT20-03 Shear Wave Velocity Structure Beneath Western Pacific Ocean by a Joint Inversion of Body and Surface Waves Yuko Kondo
9:45 - 10:00 SIT20-04 Coupling or decoupling of subslab flow beneath subduction zones revealed by multiple-layer shear wave splitting inversion Ban-Yuan Kuo
10:00 - 10:15 SIT20-05 Imprints of Cretaceous Magmatism on the Oldest Pacific Lithosphere: Evidence From Seismic Anisotropy Kai Xun Chen
10:15 - 10:30 SIT20-06 Seismic properties of lawsonite blueschist in cold subduction zones Haemyeong Jung
Oral Presentation May 25 AM2
10:45 - 11:00 SIT20-07 3D numerical modeling of the Great Arc of the Caribbean and Lesser Antilles slab evolution from tectonic plate reconstructions Andres David Bayona
11:00 - 11:15 SIT20-08 Insights into Ryukyu Slab–Eurasian Plate Interaction from the December 2025 Deep Earthquake Offshore of Yilan, Taiwan Po-Fei Chen
11:15 - 11:30 SIT20-09 Interplay Between Lithospheric Inheritance and Surface Processes in a Long-Lived Tethyan Rift Basin: Insights from the Levant Basin Yael Sagy
11:30 - 11:45 SIT20-10 Implications for Magnetic Mineral Alteration by Low Temperature Fluid-Rock Interaction during Seafloor Spreading Based on Results from IODP Expeditions 390 and 393 Gilbert Hong
11:45 - 12:00 SIT20-11 Deep Learning Velocity Model Building from MCS Data in Structurally Complex Geological Settings FAN YU
12:00 - 12:15 SIT20-12 Surrogate Modeling of Surface Fault Rupture From 3D Discrete Element Simulations Joan Onyango
Presentation No Title Presenter
Poster Presentation May 25 PM3
SIT20-P01 Relative importance of positive buoyancy and viscosity increase due to phase transition at the 660 km discontinuity on subducting slabs Daiki Takashima
SIT20-P02 Developing a Regional Sn Body-Wave Magnitude Scale mb(Sn) for the Mariana Subduction Zone Jun Yong Park
SIT20-P03 Complex Upper-Mantle Anisotropy Beneath the Pacific Triangle Revealed by Shear-Wave Splitting Seung-Heon Choi
SIT20-P04 Flash report on MAVERICS expeditions to study the mantle viscosity from geophysical observations and simulation Kiyoshi Baba
SIT20-P05 Investigating the Crustal Structure of the Gagua Ridge from Joint Inversion of Reflection and Refraction Seismic Tomography Li-Hong Huang
SIT20-P06 Seismic reflection structure and pore-fluid pressures of the Japan Trench subduction zone offshore Sanriku, northeast Japan Jin-Oh Park
SIT20-P07 Estimation of Physical Properties from Seismic Reflection Data to Understand the Initial Development of the Plate Boundary Fault in the Nankai Trough Offshore Kumano, Kii Peninsula KORAI Ryusei
SIT20-P08 High-resolution seismic imaging of fault reactivation and tectonic inversion offshore northeastern Noto Peninsula, Japan Ting-Hsuan Lin
SIT20-P09 High-Resolution P-Wave Velocity Modeling of the 2024 Noto Peninsula Earthquake Region Using Full Waveform Inversion YIGE YANG
SIT20-P10 Evaluation of Normal Fault Geometry and Slip Tendency in the Japan Trench Outer-Rise: Insights from Refined Stress Inversion YUE SUN
SIT20-P11 Morphological Characteristics and Relationship with Spreading Rates in Mid-Ocean Ridges JIAWEI PENG