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Evolution of sedimentary environment and provenance in Qiongdongnan Basin in the northern South China Sea
Author(s): SHAO Lei, LI Ang, WU Guo, LI Qianyu, LIU Chuanlian, QIAO Peijun
Pages: 548-
552
Year: 2010
Issue:
4
Journal: Acta Petrolei Sinica
Abstract: 运用沉积地球化学、古生态学等手段对琼东南盆地渐新世-中新世沉积环境及沉积物源区特征进行了分析研究,认为渐新世崖三段为淡水滨岸环境,之后海水逐步加深,由海陆过渡环境,演变到崖一段的海湾环境.盆地东部与西部在沉积物源上存在明显差异:在盆地西部的崖城隆起地区,沉积物源区存在较多的基性岩成分,特别是自陵二段开始,基性岩成分所占比例明显增高;盆地东部的松东、宝岛和松南凹陷具有明显混合物源的特性.琼东南盆地存...
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