| 济阳坳陷义和庄凸起东部燕山期构造负反转及层序地层样式响应 |
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| 引用本文： | 宋广增,徐蒙,李磊,孙迪,刘辉.济阳坳陷义和庄凸起东部燕山期构造负反转及层序地层样式响应[J].地球科学,2019,44(2):489-503. |
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| 作者姓名： | 宋广增 徐蒙 李磊 孙迪 刘辉 |
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| 作者单位： | 1.济南大学资源与环境学院, 山东济南 250022 |
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| 摘 要： | 通过钻井、测井与地震数据,依据不整合面分析、断层活动速率分析与地层的"负向结构"分析,在义和庄凸起东部燕山期内识别出一期发生于中晚侏罗世之交的构造负反转,并据此将义和庄凸起燕山期划分为早期与晚期两个阶段.通过单井与连井层序地层分析,分别建立了燕山早期与晚期的层序地层样式,两者在层序结构及内部沉积充填等方面表现出巨大差异.早期层序地层不具有显著的沉积厚度分异,且格架内部充填河流相沉积;晚期因构造负反转而形成小型拉张断陷盆地,沉积厚度分异明显,内部以扇三角洲沉积充填为主,呈现出对构造负反转的显著响应.燕山期构造-层序地层学的研究可为中国东部其他具有相似构造背景盆地前新生代的油气勘探提供借鉴.
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| 关 键 词： | 燕山期 构造不整合面 构造负反转 层序地层 沉积学 |
| 收稿时间： | 2018-10-13 |
Yanshanian Tectonic Inversion and the Response of Sequence Stratigraphic Patterns in Eastern Yihezhuang Salient,Jiyang Depression,Bohai Bay Basin |
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| Song Guangzeng,Xu Meng,Li Lei,Sun Di,Liu Hui.Yanshanian Tectonic Inversion and the Response of Sequence Stratigraphic Patterns in Eastern Yihezhuang Salient,Jiyang Depression,Bohai Bay Basin[J].Earth Science-Journal of China University of Geosciences,2019,44(2):489-503. |
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| Authors: | Song Guangzeng Xu Meng Li Lei Sun Di Liu Hui |
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| Institution: | (School of Resources and Environment,University of Jinan,Jinan 250022, China;Key Laboratory of Tectonics and Petroleum Resources China University of Geosciences, Wuhan 430074, China;No.1 Institute of Geology and Mineral Resources of Shandong Province, Jinan 250014,China;China National Offshore Oil Corporation Ltd. Zhanjiang,Zhanjiang 524057, China;Petroleum Development centre Shengli Oilfield Company, SINOPEC,Dongying 257000,China;Shandong Institute of Geophysical & Geochemical Exploration,Jinan 250013, China) |
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| Abstract: | Through boreholes, well logs and seismic profiles, one tectonic inversion happening between Middle Jurassic and Late Jurassic is recognized in Yanshanian eastern Yihezhuang salient based on analyzing unconformity surfaces, faulting activity and the negative structure of strata, which divides the Yanshanian of eastern Yihezhuang salient into Early Yanshanian and Late Yanshanian in this study. The sequence stratigraphic patterns of Early Yanshanian and Late Yanshanian are respectively established with analysis of single-well sequence stratigraphy and connecting-well sequence stratigraphy, which shows great difference in sequence structure and internal makeup with each other. During early Yanshanian, the sequence stratigraphy showed unobvious thickness differentiation and the sequence-infill were fluvial facies. Differently, the sequence stratigraphy presented obvious thickness differentiation and was infilled mainly with fan deltas, as the tectonic inversion led to development of small rifted-basin, which showed obvious response to the recognized tectonic inversion. Applying tectonic-sequence stratigraphy to Yanshanian succession could contribute to the pre-Cenezoic hydrocarbon exploration of the basins with similar tectonic background in eastern China. |
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| Keywords: | Yanshanian tectonic unconformity tectonic inversion sequence stratigraphy sedimentology |
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