| 黄河下游与黄河三角洲现代非地震变形层理的研究 |
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| 引用本文： | 钟建华,宋冠先,倪良田,孙宁亮,郝兵,葛毓柱,薛纯琦,孙景耀,刘闯,曹梦春.黄河下游与黄河三角洲现代非地震变形层理的研究[J].沉积学报,2019,37(2):239-253. |
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| 作者姓名： | 钟建华 宋冠先 倪良田 孙宁亮 郝兵 葛毓柱 薛纯琦 孙景耀 刘闯 曹梦春 |
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| 作者单位： | 中国石油大学(华东)地球科学与技术学院,山东青岛 266580;海洋国家实验室海洋矿产资源评价与探测技术功能实验室,山东青岛 266071;中国石油大学(华东)地球科学与技术学院,山东青岛,266580;中国海洋石油总公司渤海分公司,河北唐山,063000 |
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| 基金项目： | 国家自然科学基金项目（49972037，41172093，41572088）；教育部博士点基金（20060425509，20050425515，20030425008，2001425004）；山东省自然科学基金（Q9901） |
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| 摘 要： | 变形层理是软沉积变形构造(SSDS)研究中的重要内容,而SSDS的研究又是沉积学、工程地质、地震学及构造地质学等近期的研究热点。但是,目前人们对地震SSDS和非地震SSDS的精确辨识还存在一定的困难,所以建立起地震与非地震SSDS的辨识标准是非常重要的,变形层理又是SSDS研究中的重中之重,因此,对变形层理的研究具有重要意义。研究表明,黄河下游现代沉积中发育了大量的变形层理,确凿的证据证明这些变形层理与地震毫无关系,因此详细地研究这些变形层理对于建立识别地震SSDS和非地震SSDS标准具有较重要意义。黄河下游(包括黄河三角洲分流河道)发育的变形层理类型及成因多样,既有典型的包卷层理,也有极不规则的一般变形层理;从成因上,既有密度或重力倒置形成的、也有波浪作用引起的滑动滑塌形成的、还有水牵引和滑动沉积物牵引形成的、甚至还有冰块拖移或压刻形成的变形层理。不同成因的变形层理具有其独特的几何学特征,可以作为其成因的可靠标志,同样也可以作为区别于地震成因的可靠标志。黄河下游发育的变形层理与黄河下游复杂的水动力条件和气候条件及沉积物粒度极细有密切关系。
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| 关 键 词： | 变形层理 包卷层理 成因 非地震 黄河 |
| 收稿时间： | 2017-10-31 |
Modern Non-Seismically Induced Deformation Bedding in the Lower Reaches of the Yellow River and Yellow River Delta |
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| ZHONG JianHua,SONG GuanXian,NI LiangTian,SUN NingLiang,HAO Bing,GE YuZhu,XUE ChunQi,SUN JingYao,LIU Chuang,CAO MengChun.Modern Non-Seismically Induced Deformation Bedding in the Lower Reaches of the Yellow River and Yellow River Delta[J].Acta Sedimentologica Sinica,2019,37(2):239-253. |
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| Authors: | ZHONG JianHua SONG GuanXian NI LiangTian SUN NingLiang HAO Bing GE YuZhu XUE ChunQi SUN JingYao LIU Chuang CAO MengChun |
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| Institution: | 1.School of Geosciences, China University of Petroleum(East China), Qingdao, Shandong 266580, China;2.Laboratory of Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong 266071, China;3.China National Offshore Oil Bohai Company, Tangshan, Hebei 063000, China |
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| Abstract: | Deformation bedding is a relatively common and important example of a particular type of soft sediment deformation structure (SSDS). These have recently been the research focus of various disciplines, such as sedimentology, engineering geology, seismology and structural geology. The main difficulty and problem at present concerns the recognition of seismic and non-seismic SSDS. A large number of studies have shown a considerable amount of deformation bedding in the lower reaches of the Yellow River, and there is strong evidence that it is by no means always the result of earthquake activity. The study of deformation bedding in detail is of importance for developing identification and division criteria between seismic and non-seismic SSDS.There are many types of deformation bedding from different causes in the Yellow River and distributary channels:typical convolute bedding and very irregular general deformation bedding, whose origins include density or gravity inversion, or sliding caused by wave action, or water and sliding sediments traction, or even dragging or pressure carving by blocks of ice. Deformation bedding from different causes each has unique geometrical features that are useful as reliable markers of its genesis, and which may also be used as reliable criteria for recognizing its seismic (or non-seismic) origin. In addition to the complex hydrodynamic and climatic conditions of the lower Yellow River, the development of deformation bedding is mainly related to the extremely fine particle size of the sediments. |
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| Keywords: | deformation bedding convolute bedding genesis non-seismic Yellow River |
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