| 深水水道沉积体系及地震识别特征研究 |
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| 引用本文： | 吕彩丽,吴时国,袁圣强.深水水道沉积体系及地震识别特征研究[J].海洋科学集刊,2010,50(50):40-49. |
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| 作者姓名： | 吕彩丽 吴时国 袁圣强 |
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| 作者单位： | 中国科学院海洋地质与环境重点实验室 中国科学院研究生院;中国科学院海洋地质与环境重点实验室;中国科学院海洋地质与环境重点实验室 中国科学院研究生院 |
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| 摘 要： | A deepwater channel complex sedimentary system developed on or beneath slope,and on badin floor. Deepwater channels act as important conduits for transporting terrigenous detrital materials to deepwater basin,and control the formation and evolution lf deepwater sedimentary systems.Generally,a deepwater channel complexforms during the periodt of a relative low stand of sea level,when large volumes of coarse-grained sediment erode the slope and deposit on badin floor.The internal fill is lften quite complex,and the nature of channel-fill deposits varies greatly.Deepwater chanels tend to develop a smooth longitudinal upconcavity that is balanced between erosion and deposition.Based on 2D seismic data and stratigraph,we recognized a central deepwater channel complex sedimentary system,which probably formed during the early Oliocene at 5.0 Ma in Qiongdongnan Basin northern South China Sea. On seismic reflection profiles, the studied channels present an overall“U”or “V”shape and middle-high-amplitude continual seismic phase.Combining the lithologic layering from drilling well and the published channel filling model, we constructed a model of the studied channel complex and found tha most of them were sandstone-rich aggradational channel-fill patterns.the deepwater channel complex can act as good hydrocarbon reservoirs.
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| 收稿时间： | 2008/10/1 0:00:00 |
Deepwater Chnnel Complex Sedimentary System and Its Seismic Refleetion in Qiongdongnan Basin |
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| Institution: | Key Laboratory of marine Geology and Environment,Insitute of Oceanology,Chinese Academy of Sciences Geaduate School of Chinese Academy of Sciences;Key Laboratory of marine Geology and Environment,Insitute of Oceanology,Chinese Academy of Sciences;Key Laboratory of marine Geology and Environment,Insitute of Oceanology,Chinese Academy of Sciences Geaduate School of Chinese Academy of Sciences |
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