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  4. 岩石圈演化国家重点实验室
Characteristics and origin of the Lower Oligocene marine source rocks controlled by terrigenous organic matter supply in the Baiyun Sag, northern South China Sea

文献类型：期刊论文

作者Sun, Rui1,2,4,5; Li, Zhong1,4,5; Zhao, Zhigang2; Yang, Haizhang2; Wang, Xiayang3; Zhao, Zhao2
刊名JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
出版日期2020-04-01
卷号187页码:15
关键词Marine source rocks Terrigenous organic matter Redox conditions Sediment flux Baiyun Sag
ISSN号0920-4105
DOI10.1016/j.petrol.2019.106821
英文摘要To analyze the dominant factors of the origin of marine source rocks of the northern South China Sea (SCS), this paper focuses on the Lower Oligocene neritic source rocks in the Baiyun Sag of the Pearl River Mouth Basin. This study assesses the source rocks based on the principles and methods of sedimentology, geochemistry, and palynology and data on pyrolysis parameters, biomarker compounds, major and trace elements, and sedimentary organic debris. The paleoproductivity, input of terrigenous organic matter (TOM), redox conditions and sediment flux are characterized by the above parameters. The dominant effects of organic matter (OM) supply, preservation, and dilution on the origin of the source rocks are studied, and a depositional model of the source rocks is established. Finally, the origin of the Lower Oligocene marine source rocks in the northern SCS is clarified. The results show that the main source of the marine source rocks was terrestrial higher plants, while the contribution of planktonic algae was small. The origin of the marine source rocks was strongly controlled by the input of TOM during the depositional period. The source rocks developed in an oxic environment, and the correlation between the redox indices and OM abundance is poor, which indicates that the redox conditions were not the main factor dominating the origin of the source rocks. With an increase in the sediment flux and the barrier formed by low uplifts, the dilution of the OM decreased, and the contact time between OM and oxygen was markedly reduced; therefore, some OM in the oxic bottom water was not oxidized but instead became enriched, thereby forming the source rocks.
WOS关键词RIVER MOUTH BASIN ; SEDIMENTATION-RATE ; GEOCHEMICAL CHARACTERIZATION ; DEPOSITIONAL ENVIRONMENT ; CONTINENTAL-MARGIN ; ERLIAN BASIN ; TRACE-METALS ; CARBON ; PRESERVATION ; EVOLUTION
资助项目National Science and Technology Major Project of the Ministry of Science and Technology of China[2016ZX05026-007]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000510456900021
出版者ELSEVIER
资助机构National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China ; National Science and Technology Major Project of the Ministry of Science and Technology of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/95602]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Li, Zhong
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.CNOOC Res Inst Co Ltd, Beijing 100028, Peoples R China
3.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Rui,Li, Zhong,Zhao, Zhigang,et al. Characteristics and origin of the Lower Oligocene marine source rocks controlled by terrigenous organic matter supply in the Baiyun Sag, northern South China Sea[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2020,187:15.
APA Sun, Rui,Li, Zhong,Zhao, Zhigang,Yang, Haizhang,Wang, Xiayang,&Zhao, Zhao.(2020).Characteristics and origin of the Lower Oligocene marine source rocks controlled by terrigenous organic matter supply in the Baiyun Sag, northern South China Sea.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,187,15.
MLA Sun, Rui,et al."Characteristics and origin of the Lower Oligocene marine source rocks controlled by terrigenous organic matter supply in the Baiyun Sag, northern South China Sea".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 187(2020):15.

入库方式： OAI收割

来源：地质与地球物理研究所

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