Evolution of the South China Sea basin and the deep circulation
JIAN Zhimin1, TIAN Jun1, HUANG Wei1, MA Xiaolin2, WAN Sui3
1. State Key Laboratory of Marine Geology, School of Ocean and Earth Science, Tongji University, Shanghai 200092, China;
2. Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China;
3. South China Sea Institute of Oceanography, Chinese Academy of Sciences, Guangzhou 310012, China
Abstract:The present-day South China Sea (SCS) was evolved from land to sea in the Eocene 34 million years ago, and its paleo-water was very deep. At the turn of the Miocene/Oligocene, 24 million years ago, due to the T60 tectonic movement, the entire SCS basin became a deep-sea environment. Since the Miocene, 10.0, 6.5 and 1.2 million years ago, along with the collision of the Luzon island arc with the Eurasian plate, the semi-closed degree of the SCS basin increased, so that the SCS deep-water could only come from the Pacific above the sill depth (~2600 m) of the Bashi Strait. After that, due to the global sea level change, the deep-water exchange between the SCS and the Pacific on both sides of the Bashi Strait displayed the glacial/interglacial mode.
翦知湣, 田军, 黄维, 马小林, 万随. 南海海盆演变与深部海流[J]. 科技导报, 2020, 38(18): 52-56.
JIAN Zhimin, TIAN Jun, HUANG Wei, MA Xiaolin, WAN Sui. Evolution of the South China Sea basin and the deep circulation. Science & Technology Review, 2020, 38(18): 52-56.
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