Characteristics and evolution of Cenozoic sediments in the Liyue Basin, SE South China Sea

被引：44
|
作者：
Yao, Yongjian [1 ]
Liu, Hailing [2 ]
Yang, Chupeng [1 ]
Han, Bing [1 ]
Tian, Jijun [3 ]
Yin, Zhengxin [4 ]
Gong, Junli [4 ]
Xu, Qiaoyue [4 ]
机构：
[1] Guangzhou Marine Geol Survey, Guangzhou 510760, Guangdong, Peoples R China
[2] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
[3] Xinjiang Univ, Urumqi 830046, Xinjiang, Peoples R China
[4] Sun Yat Sen Univ, Guangzhou 510006, Guangdong, Peoples R China
来源：
JOURNAL OF ASIAN EARTH SCIENCES | 2012年 / 60卷
关键词：
Seismic sequence interface; Sedimentary evolution; Cenozoic; Liyue Basin; South China Sea; CONTINENTAL-MARGIN; PALAWAN BLOCK; LAYER-BLOCK; TECTONICS; ASIA;
D O I：
10.1016/j.jseaes.2012.08.003
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The Liyue Basin in southeastern South China Sea is considered to be a Cenozoic basin superimposed on the Mesozoic Erathem. The present account is based on comprehensive analysis of seismic profiles, dragnet and core samples. Cenozoic deposits in the basin are characterized by a sequence of marine detrital and carbonate rocks. There are two regional unconformities (T-70 and T-40), corresponding to the commencement and termination of sea-floor spreading in the South China Sea, in the Late Oligocene and late Early Miocene respectively. The Cenozoic sedimentary evolution of the basin recorded different sedimentary responses to sea-floor spreading in the South China Sea, and reflected differences in the basin structure, paleogeographic pattern and sedimentary characteristics before 30 Ma (Late Oligocene) and after 30 Ma. The evolution of sea-floor spreading, changes in sea level and sediment sources controlled the Cenozoic sedimentary infill. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：114 / 129
页数：16
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