naa a22 4500 510754007 CHVBK 20180411083116.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s13131-013-0385-2 doi (NATIONALLICENCE)springer-10.1007/s13131-013-0385-2 Stress field modeling of northwestern South China Sea since 5.3 Ma and its tectonic significance [Elektronische Daten] [Fengli Yang, Zuyi Zhou, Na Zhang, Ning Liu, Bin Ni] Tectonically, the northwestern South China Sea (SCS) is located at the junction between three micro-plates, i.e., the Indochina, South China and Zhongsha-Xisha micro-plates, and involves three basins, i.e., the Yinggehai Basin, the Qiongdongnan Basin and Xisha Trough in the east, and the Zhongjiannan Basin in the south. Since the Pliocene (5.3 Ma), the Yinggehai Basin has experienced repeated accelerating subsidence, high thermal fluid, and widely developing mud-rich overpressure chambers, abundant mud diapers and crust-mantle mixed CO2. While a large central canyon was developed in the Qiongdongnan Basin, new rift occurred in the Xisha Trough. These characteristics demonstrate a single tectonic unit for the northwestern SCS, for which we have undertaken stress field modeling to understand its plate deformations and sedimentary responses. Our results demonstrate that an extension tectonic event occurred after 5.3 Ma in the Yinggehai-Qiongdongnan-Xisha trough area, which is characterized by thinner crust (<16 000 m), half-graben or graben structural style and thicker sedimentary sequences (>3 500 m). A new rift system subsequently was developed in this area; this event was mainly driven by the combined effects of different movement velocity and direction of the three micro-plates, and the far-field effect of the continental collision between the Indian Plate and the Tibetan Plateau, and subduction of the Pacific Plate underneath the Eurasian Plate. The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg, 2013 northwestern South China Sea nationallicence Pliocene nationallicence stress field modeling nationallicence rift system nationallicence Yang Fengli School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut Zhou Zuyi School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut Zhang Na School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut Liu Ning School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut Ni Bin School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut Acta Oceanologica Sinica Springer Berlin Heidelberg 32/12(2013-12-01), 31-39 0253-505X 32:12<31 2013 32 13131 https://doi.org/10.1007/s13131-013-0385-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s13131-013-0385-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Fengli School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut NATIONALLICENCE 700 1- Zhou Zuyi School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut NATIONALLICENCE 700 1- Zhang Na School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut NATIONALLICENCE 700 1- Liu Ning School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut NATIONALLICENCE 700 1- Ni Bin School of Ocean and Earth Science, Tongji University, 200092, Shanghai, China aut NATIONALLICENCE 773 0- Acta Oceanologica Sinica Springer Berlin Heidelberg 32/12(2013-12-01), 31-39 0253-505X 32:12<31 2013 32 13131 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer