Session 4: Dynamics of intracontinental deformation Co-Conveners: GERYA Taras（ETH, Zurich), ZHANG Junfeng (University of Geosciences, Wuhan, China), CHEN Ling (Institute of Geology and Geophysics, CAS, China), WANG Qin (Nanjing University, China), LI Jianhua (SinoProbe Lab. and Institute of Geomechanics, CAGS, China) Description: This interdisciplinary session invites contributions from disciplines in geophysics, geodynamics, structural geology and geochemistry that focus on the structure and evolution of the continental lithosphere and on geodynamic processes within the continental interior. The session will present overviews of current knowledge on the structure of the crust and the upper mantle in different tectonic settings, ranging from Precambrian cratons to sedimentary basins, continental rift zones, and intracontinental collisional orogens. Geodynamic studies will demonstrate the role of various processes in intracontinental deformation, ranging from collisional, extensional and strike-slip deformation by plate tectonics, to intracontinental deformation caused by lithosphere-mantle dynamic interaction associated with hotspots, large igneous provinces and large-scale impacts. Oral Section 1 Thursday, October 24, 2024 Hainan Ting, 2nd Floor Co-Chairs: Ling ChenQin Wang 08:20 - 08:25 Ling Chen Opening Remark 08:25 - 08:45 Fabio A. Capitanio The formation of Mid-Lithosphere Discontinuities and the origin of cratonic mantle (Invited) 08:45 - 09:05 Sierd Cloetingh Iceland plume and its magmatic manifestations: LIP-Dornröschen in the North Atlantic (Invited) 09:05 - 09:20 Afroz Ahmad Shah The discovery of the Banda Bend, a >2000 km-wide tectonically formed extensional bend in eastern Indonesia, Southeast Asia 09:20 - 09:35 Zhouchuan Huang Deep structures and seismotectonics of Mongolia-Baikal region 09:35 - 09:50 Shiva Arvin Depth-dependent seismic anisotropy beneath the NW Iranian Plateau 09:50 - 10:05 Hao Su Mantle exhumation and spreading center jump in Tyrrhenian basin facilitated by weak rheological mantle Section 2 Thursday, October 24, 2024 Hainan Ting, 2nd Floor Co-Chairs: Jianhua LiJunfeng Zhang 10:20 - 10:35 Andrew V. Zuza Hot North America Cordilleran hinterland promoted lower crust mobility and decoupling of Laramide deformation: Implications for zones of intraplate deformation 10:35 - 10:50 Bo Wang Early Mesozoic magma-induced mid-crustal flow and high-temperature metamorphism in the Yunkai massif, South China 10:50 - 11:05 Lingtong Meng The bulldozed and rebuilt cratonic lithosphere induced by continental subduction and its tectonic response 11:05 - 11:20 Shuyun Cao Deep crustal anatexis and initiation of continental-scale strike-slip shear zone 11:20 - 11:35 Yi Cao Evolution of deformation mechanism and stress regime at the plate interface in continental subduction zones: Perspectives of natural high-pressure metamorphic rocks 11:35 - 11:50 Liqing Jiao Mechanisms of Lithospheric Deformation in the Late-Mesozoic Qinling Orogen: Insights from Discrete Element Modellings 11:50 - 12:10 Junfeng Zhang 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. SP04-001 Xiaofan Deng Fossil subduction zone beneath the eastern Yangtze Craton - evidence from deep seismic reflection profiles SP04-002 Wang, Tuo 3D shear wave velocity and radial anisotropy structure of the African Okavango Rift and adjacent regions SP04-003 Yongfeng Wang Olivine water contents in the Paleozoic Mengyin kimberlites: Implications for the destruction of the North China Craton SP04-004 Yiping Zhang Testing the Cenozoic lower crustal flow beneath the Qinling Orogen, northeastern Tibetan Plateau SP04-005 Yujun Sun The rheological structure of the continental lithosphere and intracontinental deformation in East Asian SP04-006 Bing Li Cenozoic kinematic development of the Qilian Shan: implications for the intra-plate deformation in northern Tibetan plateau SP04-007 Lei Ji Multiple stages growth of garnets in high-pressure granulite from the Red River-Ailao Shan shear zone, southeast lateral of Himalaya orogenic zone SP04-008 Wenlong Liu Pseudo-Plastic Deformation Microstructures of Amphibole Developed During the Retrogression of Eclogite SP04-009 Kai Wang Upper mantle rheology inferred from postseismic deformation of the 2023 Türkiye earthquake doublet SP04-010 Lingxiao Zhang Electrical resistivity structures of the Beishan Block, NW China, and tectonic implications SP04-011 Yuan Weiheng The electrical structure and geodynamic significance in the Alxa Block SP04-012 Licheng Ma Characteristics and ages of uplift-rapid extension deformation of Lushan magmatic core complex SP04-013 Yu Zhang New insight into crustal exhumation induced by granitic intrusion following intracontinental contractional deformation: a possible model for Hohhot thermal upwelling-extensional structure, Inner Mongolia, north China SP04-014 Yujia Xin Early Devonian A-type granitoids and diabases in the Wuyishan, eastern Cathaysia: A signal of crustal extension coeval with the separation of South China from Gondwana