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Located at the northwestern part of the South China Sea(SCS) among the east subbasin, the Zhongsha Islands(Maccelesfield Bank), and the Xisha Islands(Paracel), the NW subbasin is the smallest ocean basin in all the three subbasins of SCS. It presents all major stages from rifting in the late Oligocene to initial seafloor spreading in the mid-Miocene, thus provides an ideal place to study the rifting...
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