Session 2: Deep structure and dynamics of Himalaya-Tibet Co-Conveners: KLEMPERER Simon (Stanford University, USA), DING Lin (Institute of Tibetan Plateau Research, CAS, China), YUAN Xiaohui (GFZ German Research Center for Geosciences, Germany),LU Zhanwu (SinoProbe Lab. and Institute of Geology, CAGS, China), GUO Xiaoyu (Sun Yat-Sen University, China), GHOSH Attreyee (Indian Institute of Science, India), LI Zhong-Hai (University of Chinese Academy of Sciences, China) Description: Understanding the geodynamics of the Himalaya and Tibetan Plateau provides crucial insights into global tectonic processes, mountain building mechanisms, and associated natural hazards. Recently, a wealth of deep exploration and geodynamic studies of the Himalaya-Tibetan orogen have been conducted to decipher the underlying mechanisms of the continental collision and orogeny. Surface processes, such as erosion, sedimentation and climate dynamics, in turn influence the tectonic evolution of the Himalaya–Tibetan plateau. This session focuses on the studies of the deep processes and geodynamics that shape this vast orogen, as well as the studies concerning the complex interactions between tectonics and surface processes. We invite submissions aimed at documenting and understanding the collisional tectonics, lithospheric geometry and mass balance of the Himalaya-Tibetan Plateau, using any geophysical, geochemical, geochronological or geological datasets, and/or geodynamic modelling, with the aim of elucidating the 4D evolution of this continental collision. Oral Section 1 , Where is the boundary (mantle suture) between India and Asia? Wednesday, October 23, 2024 Century Hall (I), 3rd Floor Co-Chairs: Simon KlempererRui Gao 13:40 - 13:45 Simon Klemperer Opening Remark 13:45 - 14:00 Xiaohui Yuan The boundary between the Indian and Asian tectonic plates 14:00 - 14:15 Xiaoyu Guo Mechanisms driving topographic high gradient in northern central Tibet 14:15 - 14:35 Chujie Liu Constraining India-Asia Collisional Tectonics from Full Waveform Seismic Tomography (Invited) 14:35 - 14:50 Zhi Wang Control of stepwise subduction and slab breakoff on volcanism and uplift in the Tibetan Plateau 14:50 - 15:10 Ajay Kumar Orogenic lithosphere structure, deformation and future: insights from Tibet and comparison with Alpine-Himalaya collision zone mountains (Invited) 15:10 - 15:20 Lin Ding Discussion Section 2 , What are the driving forces that build Tibet? Wednesday, October 23, 2024 Century Hall (I), 3rd Floor Co-Chairs: Xiaohui YuanXiaoyu Guo 15:40 - 15:55 Attreyee Ghosh Understanding the deformation in the Himalaya-Tibet region 15:55 - 16:10 Pengpeng Huangfu Contrasting physical mechanisms of long-distance deformation propagation induced by India–Asia collision between eastern and western collision domains 16:10 - 16:30 Lijun Liu Cenozoic driving force and deformation of the Tibet Plateau (Invited) 16:30 - 16:45 Zhuo Ye Differentiated far-end-marginal deformation of the India-Asia continental collision belt controlled by lithospheric heterogeneity 16:45 - 17:00 Zhonghai Li Multiengine-driving Tethyan and Tibetan evolution Section 3 , Tibetan crustal evolution, and beyond Wednesday, October 23, 2024 Century Hall (I), 3rd Floor Co-Chairs: Attreyee GhoshZhanwu Lu 17:00 - 17:20 Fabio capitanio Slowing India-Asia convergence controls on Himalaya-Tibet orogeny (Invited) 17:20 - 17:35 Jiangtao Li Seismic methods for possible indicators of partial melting in the Tibetan crust: Vp/Vs and attenuation 17:35 - 17:50 Dominik Richard Vlaha Mid-crustal overpressure in the Tethyan Himachal Himalaya, NW India: Implications for crustal dynamics of the Himalayan - Tibetan orogen 17:50 - 18:05 A. Alexander G Why are we still interpreting the South Tibet fault as a normal fault? 18:05 - 18:20 Yanling Liang Surface wave tomography of Myanmar and its surroundings using ambient noise and earthquake data 18:20 - 18:35 Ling Bai Seismic features of continental collision and oceanic subduction zones in Eastern Asia 18:35 - 18:55 Lin Ding General Discussion and Conclusion Poster Physical Poster will be presented from Oct 23-24, 2024 in Zhonghua Hall at the 2nd floor of the New Century Hotel. iPoster will be online from Oct 20, 2024. SP02-001 Shihua Xu Paleomagnetic constraints on the paleolatitudes of the southern margin of Asia prior to the India-Asia Collision SP02-002 Zizhao Yuan Crustal-scale architecture and origin of the Haiyuan Arcuate Tectonic belt, NE Tibet SP02-003 Wenhui LI Deep structure of the Kumkol Basin in the northern Tibetan Plateau and its resource environmental implications SP02-004 Jianqiang Kang Electrical response of a reactivated ancient suture revealed by three-dimensional magnetotelluric inversion across the Jinsha River suture, northern Tibetan Plateau SP02-005 Bing Xia Strong variability in the thermal structure of Tibetan Lithosphere SP02-006 Zhanwu Lu Lithospheric structure beneath the Hoh Xil block in the northern Tibetan Plateau revealed by deep seismic reflection profile SP02-007 Xiaofei Tong Ambient noise inversion reveals the excavation of Ruoergai basin from a paleolake SP02-008 Huiyan Zhang The Lithospheric Electrical Structure of the Central Songpan-Ganze Terrane, Northern Tibetan Plateau -- Implication for Regional Deformation Mechanism SP02-009 Chengliang Xie Limited Subduction of the Indian Plate: Insights from Magnetotelluric Data SP02-010 Hanwen Dong Deformation-Time Constraints on the South Tibetan Detachment System in the Cuona area, eastern Himalaya SP02-011 Xuezhen Zhang The velocity and azimuthal anisotropy structure of Southeastern margin of the Tibetan Plateau from Adjoint-state Traveltime Tomography