Late Cenozoic magmatism of the South China Sea driven by the Hainan mantle plume  

海南地慢柱驱动的南海晚新生代岩浆活动

作　　者：Shaohong Xia Tao Gou Fang Zhao Dapeng Zhao Chaoyan Fan 夏少红;苟涛;赵芳;赵大鹏;范朝焰

机构地区：[1]Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China [2]Department of Geophysics,Graduate School of Science,Tohoku University,Sendai 980-8578,Japan

出　　处：《Science Bulletin》2025年第5期604-608,共5页科学通报(英文版)

基　　金：National Key Research and Development Program of China(2022YFC3102200);National Natural Science Foundation of China(42076071,42106071,and 42376070);Special Fund of South China Sea Institute of Oceanology of the Chinese Academy of Sciences(SCSIO2023QY06);Guangdong Basic and Applied Basic Research Foundation(2022A1515012019).

摘　　要：Rifted continental margins play a crucial role in understanding Earth’s tectonics[1].Their significance extends beyond elucidating the mechanisms of continental rifting and plate tectonics;they also hold substantial potential as reservoirs for mineral resources,hydrocarbons,and geothermal energy[2].The South China Sea(SCS)has undergone a comprehensive sequence of lithospheric stretching,thinning,breakup,and the formation of new oceanic crust.Unlike the classic magma-rich and magma-poor end-members observed in different parts of the Atlantic,the SCS rifted margin is considered to be of an intermediate type[3].In addition,the continental margin of the SCS was formed associated with the Late Mesozoic subduction of the paleo-Pacific Plate and subsequently underwent rifting tectonic transformation.The eastern,western,and southern sides of the SCS are now bordered by two major subduction zones:the western Pacific and the Indian Ocean[4].This evolutionary trajectory underpins a tectonic system fundamentally distinct from the Atlantic-type rifted margins,and a concept of SCS plate-edge rifting was proposed[5].

关 键 词：MAGMA CONTINENTAL tectonic 

分 类 号：P54[天文地球—构造地质学]