The South China Sea is roughly divided by the Zhongnan Fault into the eastern and western parts, with big differences in the Mesozoic sedimentation and the residual thickness, the nature and the characteristics of the continent-oceanic boundary, the age of the continental breakup, the width of the thinned continental lithosphere, the age and the magnetic layer structure of the oceanic crust, the magnetic anomaly, the lithochemistry, and the magmatic activity. They are mainly controlled by the east-west difference in the pre-rift tectonic background, the lithospheric extension rates, and the tectonic settings related with seafloor spreading. These factors profoundly affect the subsequent regional sedimentary zonation and thermal subsidence.
LI Chunfeng
,
LI Zhikang
,
LI Yaqing
,
LIU Yutao
,
PENG Xi
,
WEN Yonglin
. Large geological differences between the East and Southwest Subbasins of the South China Sea[J]. Science & Technology Review, 2020
, 38(18)
: 40
-45
.
DOI: 10.3981/j.issn.1000-7857.2020.18.006
[1] 汪品先. 追踪边缘海的生命史:"南海深部计划"的科学目标[J]. 科学通报, 2012, 57(20):1807-1826.
[2] 李家彪, 丁巍伟, 吴自银, 等. 南海西南海盆的渐进式扩张[J]. 科学通报, 2012, 57(20):1896-1905.
[3] Song T, Li C F. Rifting to drifting transition of the South-west Subbasin of the South China Sea[J]. Marine Geo-physical Research, 2015, 36:167-185.
[4] Shi H, Li C F. Mesozoic and early Cenozoic tectonic con-vergence-to-rifting transition prior to opening of the South China Sea[J]. International Geology Review, 2012, 54:1801-1828.
[5] Li C F, Li J, Ding W, et al. Seismic stratigraphy of the central South China Sea basin and implications for neo-tectonics[J]. Journal of Geophysical Research, 2015, 120(3):1377-1399.
[6] Song T, Li C F, Wu S, et al. Extensional styles of the con-jugate rifted margins of the South China Sea[J]. Journal of Asian Earth Sciences. 2019, 177:117-128.
[7] Sun Z, Jian Z, Stock J M, et al. South China Sea Rifted Margin[J]. Proceedings of the International Ocean Discov-ery Program, 2018, 367/368:1-15.
[8] Wan X, Li C F, Zhao M, et al. Seismic velocity structure of the magnetic quiet zone and continent-ocean boundary in the northeastern South China Sea[J]. Journal of Geo-physical Research, 2019, 124:11866-11899.
[9] Hou W, Li C F, Wan X, et al. Crustal S-wave velocity structure across the northeastern South China Sea conti-nental margin:Implications for lithology and mantle exhu-mation[J]. Earth and Planetary Physics, 2019, 3:314-329.
[10] Qiu X L, Ye S Y, Wu S M. Crustal structure across the XishaTrough, northwestern South China Sea[J]. Tectono-physics, 2001, 341:179-193.
[11] Wan K, Xia S, Cao J, et al. Deep seismic structure of the northeastern South China Sea:Origin of a high-veloc-ity layer in the lower crust[J]. Journal of Geophysical Re-search, 2017, 122:2831-2858.
[12] Li C F, Xu X, Lin J, et al. Ages and magnetic structures of the South China Sea constrained by deep tow magnet-ic surveys and IODP Expedition 349[J]. Geochemistry Geophysisc Geosystems, 2014, 15:4958-4983.
[13] 李春峰, 宋陶然. 南海新生代洋壳扩张与深部演化的磁异常记录[J]. 科学通报, 2012, 57(20):1879-1895.
[14] Zhang G L, Luo Q, Zhao J, et al. Geochemical nature of sub-ridge mantle and opening dynamics of the South China Sea[J]. Earth and Planetary Science Letters, 2018, 489:145-155.
[15] Li C F, Lin J, Kulhanek& the Expedition 349 Scientists. South China Sea Tectonics[J]. Proceedings of the Interna-tional Ocean Discovery Program, 2015, 349:1-300.
[16] Cao Y, Li C F, Yao Y. Thermal subsidence and sedimen-tary processes in the South China Sea Basin[J]. Marine Geology, 2017, 397:30-38.
