| 二连盆地白垩系非海相沉积层序地层特征 |
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| 引用本文： | 魏魁生,徐怀大.二连盆地白垩系非海相沉积层序地层特征[J].地球科学,1994,19(2):181-193. |
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| 作者姓名： | 魏魁生 徐怀大 |
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| 作者单位： | 中国地质大学能源系 北京100083 |
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| 摘 要： | 辩证地将层序地层学的基本原理应用于二连非海相沉积盆地中，利用高分辨率反射地震资料和钻井资料将白垩系划分为２个超层序和８个层序，每个层序含８－２０个准层序；分析了层序界面特征及高振幅反射波与密集段的关系；总结了沉积体和体系域特征；绘制了基准面升降曲线。
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| 关 键 词： | 白垩纪 层序地层 非海相沉积 |
Sequence Stratigraphic Features of Cretaceous Nonmarine Sediments in Erlian Basin |
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| Wei Kuisheng,Xu Huaida.Sequence Stratigraphic Features of Cretaceous Nonmarine Sediments in Erlian Basin[J].Earth Science-Journal of China University of Geosciences,1994,19(2):181-193. |
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| Authors: | Wei Kuisheng Xu Huaida |
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| Abstract: | The authors attempt to use the concepts of sequence stratigraphy to nonmarine Mesozoic sediments deposited in Erlian basin. The shelf edge in nonmarine faulted basin is ambiguous at its gentle slope side, and storm base can be regarded as a reference base level for distinguishing the system tracts. 2 supersequences and 8 third-order sequences which consist of 8 to 20 parasequences have been identified in Cretaceous sediments of Erlian basin. The authors analyse the characteristics of sequence boundaries and condensed sections, summarize the characteristics of depositional systems and system tracts in space, and construct the relative change curve of the base level. |
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| Keywords: | nonmarine depositional sequence condensed section depositional system system tract base-level change curve Cretaceous Erlian basin |
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