Sediment sources and transport patterns of Qiongdongnan Basin in Northern Slope of South China Sea since Late Miocene

doi:10.3969/j.issn.1001-909X.2016.02.005

Abstract

Abstract: The sediment transport patterns were revealed in the Qiongdongnan Basin on the Northern Slope of South China Sea since Late Miocene by the research of the sediment filling patterns since the period of post-rift accelerated subsidence. On the basis of the previous analysis on the potential provenance, combined with the summary and induction of the exploration achievement in the research area, the types of the deep-water sedimentation were identified and the combinations of the deep-water depositional packages which have genetic relationship or the same source were built. In addition, the sediment transport patterns were classified tentatively. The results show that since Late Miocene, there are 4 potential sedimentary sources in the Qiongdongnan Basin: they are Hainan Island' sources, West Yinggehai' sources, Southern uplift' sources and Shenhu uplift' sources, respectively. The sedimentary transport patterns can be divided into three types: they are vertical direction, axial direction and turning direction sedimentary transportation.

Key words: sediment transportation, Late Miocene, Qiongdongnan Basin, Northern Slope of South China Sea

CLC Number:

P736.2

LEI Zhen-yu, SU Ming, ZHANG Li, SHUAI Qing-wei, SUN Ming, LIU Jie, YANG Rui. Sediment sources and transport patterns of Qiongdongnan Basin in Northern Slope of South China Sea since Late Miocene[J]. Journal of Marine Sciences, 2016, 34(2): 35-42.

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