Session 14: Electromagnetic geophysics Co-Conveners: JIN Sheng (China University of Geosciences, Beijing, China), SCHULTZ Adam (Oregon State University, USA), YE Gaofeng（China University of Geosciences, Beijing, China）, COMEAU Matthew Joseph (Delft University of Technology, Netherlands), ZHANG Kun (SinoProbe Lab., China) Description: We call for contributions on all aspects of Electromagnetic (EM) methods that advance our understanding of the tectonics and geodynamics of the lithosphere and asthenosphere. We seek presentations from field observations to physical/numerical modelling that image the solid Earth on both the regional and the global scales. Development of laboratory measurements of rock/mineral resistivity, new instrumentation, and new methodologies are also welcomed. Multi-disciplinary studies that combine the EM and other geophysical methods are particularly encouraged. Oral Section 1 Thursday, October 24, 2024 Chongqing Hall, 3rd Floor Co-Chairs: Matthew J. ComeauGaofeng Ye 13:40 - 13:42 Gaofeng Ye Opening Remark 13:42 - 13:57 Sheng Jin Material migration characteristics of the lithosphere in the Lhasa terrane: Insight from the 3-D electrical resistivity model 13:57 - 14:12 Hui Yu Lithospheric subduction zone beneath the western South China Continent revealed by electrical resistivity imaging 14:12 - 14:27 Zhang Kun Improvement, combination and commercialization of processing and inversion methods of magnetotelluric data 14:27 - 14:42 Baochun Li Rheological evidence of the lithospheric destruction of the Eastern Block of the North China Craton 14:42 - 14:57 Bo Yang Magnetotelluric Imaging Lithospheric Electrical Structure beneath Bayan Obo Region, Inner Mongolia, China 14:57 - 15:20 Alan G. Jones Discovering ore deposits using airborne natural-source EM methods: Strengths and Weaknesses (Invited) Section 2 Thursday, October 24, 2024 Chongqing Hall, 3rd Floor Co-Chairs: Elena SokolovaSheng Jin 15:40 - 15:40 Matthew J. Comeau Imaging the architecture of mineral systems with magnetotellurics: Signatures of the pathways and sources of ore-forming fluids (Invited) 15:40 - 15:55 Gang Wang The conductivity feature of the lower crust of intracontinental setting porphyry copper deposits and its constraints on the mineralization process 15:55 - 16:10 Letian Zhang Characterizing Paleo Suture Zones in the Beishan Orogen of Central South CAOB using Magnetotelluric Data 16:10 - 16:25 Xin Li Magnetotelluric imaging of the deep hydrothermal-magmatic system beneath the Lei-Qiong volcanic area in South China 16:25 - 16:40 Zhou Cong Ground-tunnel wide field electromagnetic method for deep mineral exploration: a case study from Dongguashan copper mine 16:40 - 16:55 Liu Cheng The crust-mantle resistivity structure of pegmatite-type rare metal metallogenic belts and their implications for the metallogenic process 16:55 - 17:20 Sheng Jin 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. SP14-001 Matthew J. Comeau Improved responses with multitaper spectral analysis for magnetotelluric time series data processing: examples from field data SP14-002 Meixing He Magnetotelluric Imaging of the Southernmost Section of the Tanlu Fault Zone and Its Tectonic Implications SP14-003 Hongda Liang Lithospheric electrical structure and its implications for the Mineralization of the Great Xing’an Range SP14-004 Yuhan Yang Optimizing initial model construction for 2-D Magnetotelluric Data Inversion: a case study from Maigaiti Slope, Tarim Basin SP14-005 Yuancheng Zhao Electrical Structure of the Lithosphere in Connect Zone of the Northeastern Margin of the Tibetan Plateau and North China Block and its Geoscience Significance SP14-006 Aihua Weng Trans-upper mantle magma plumbing system beneath the Southern Zhangguangcai Range revealed by the magnetotelluric data SP14-007 Zhaoyuan Kang Deep heat source and formation mechanism of hot dry rocks in northeast Hebei Province, China: evidence from MT array data study SP14-008 Zijun Zuo Study of the Electrical Structure of the Earth's Lower Mantle Based on Long-Period Geomagnetic Data from Observatory Stations SP14-009 Jianhua Yue Study on the Characteristics of Time-Domain Pseudo-Random Electromagnetic Response with Continuous Power Supply and Full-Time Measurement SP14-010 Yixian Xu Constraining the volatiles reserved in continental upper mantle by electrical conductivity SP14-011 Hao Dong Towards a Universal Data Format for Frequency Domain EM Geophysical Surveys SP14-012 Xingzhi Ma Two dimensional electrical imaging of the lithosphere of southeastern Tibet from magnetotelluric sounding data SP14-013 Yifan Li Insights from Magnetotelluric Studies in the Northern Margin of the North China Craton into Continent Reworking Deep Processes and Carbon Cycling Mechanisms SP14-014 Xiaobo Zhang Research on the application of comprehensive electromagnetic detection in the investigation and demonstration of geothermal wells——A case study of Well HLD1 in Qiqihar area SP14-015 Chutong Chen Tectonic Evolution and Lithospheric Structure of the Beishan Orogen: Insights from Magnetotelluric Studies SP14-016 Ji'en Dong Research on the Application of Electromagnetic Method in the Exploration of Altered Rock-Type Gold Deposits in the East Kunlun Metallogenic Belt SP14-017 Gaofeng Ye Material Transport Model of Rigid Block Extrusion Driven by Crustal Flow Beneath the SE Tibetan Plateau: insights from high-resolution 3-D Magnetotelluric Imaging