鄂尔多斯盆地三叠系延长组震积岩特征研究
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摘要
震积岩是具有古地震记录的岩层。根据大量岩心观察,鄂尔多斯盆地三叠系延长组广泛发育震积岩沉积标志,如液化砂岩脉、阶梯状小断层、液化卷曲变形、砂球枕构造、泥岩撕裂屑、滑揉构造等。详细分析了各种震积岩特征及其分布,初步建立了鄂尔多斯盆地延长组震积岩垂向沉积序列,包括:A段为下伏未震层;B段为微同沉积断裂层;C段为振动液化卷曲变形层;D段为液化砂岩脉和砂岩墙段;E段为砂球枕及碎块层;F段为液化均一层和G段上覆未震层。震积岩的首次发现为研究盆地周边构造演化强度和期次提供了佐证,同时震积岩也是一种潜在的有利储层。
Seismites is a kind of catastrophic event rock.By the observation of drilling cores,there are many special structures which were generated by ancient widespread earthquake recorded in the seismites of the Triassic Yangchang Formation in Ordos Basin,such as liquefaction sandstone vein,fault-graded,vibrational liquefaction deformation structure,pillow structure,ball structure,tearing mudstone fragment and slumps.The vertical sequence of seismites in Triassic Yangchang Formation,from bottom to top,included 7 units:underlying unshocked layer,shattered layer,ladder-shaped faulted layer,vibrational liquefaction deformation structure bed,liquefied sandstone vein bed,pillow structure and partner structure layer,homogenized bed and overlying unshocked layer.The first discovery of seismites could be used to analyze the intensively active period of basin-controlling boundary,and the seismites themselves were a kind of potential reservoir.
Seismites is a kind of catastrophic event rock.By the observation of drilling cores,there are many special structures which were generated by ancient widespread earthquake recorded in the seismites of the Triassic Yangchang Formation in Ordos Basin,such as liquefaction sandstone vein,fault-graded,vibrational liquefaction deformation structure,pillow structure,ball structure,tearing mudstone fragment and slumps.The vertical sequence of seismites in Triassic Yangchang Formation,from bottom to top,included 7 units:underlying unshocked layer,shattered layer,ladder-shaped faulted layer,vibrational liquefaction deformation structure bed,liquefied sandstone vein bed,pillow structure and partner structure layer,homogenized bed and overlying unshocked layer.The first discovery of seismites could be used to analyze the intensively active period of basin-controlling boundary,and the seismites themselves were a kind of potential reservoir.
引文
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6乔秀夫,宋天锐,高林志,等.碳酸盐岩振动液化地震序列[J].地质学报,1994,68(1):16-32[Qiao Xiufu,Song Tianrui,Gao Linzhi,et al.Seismic sequence in carbonate rocks by vibrational liquefaction[J].Acta Geologica Sinica,1994,68(1):16-32]
7乔秀夫.中国震积岩的研究与展望[J].地质论评,1996,42(4):317-320[Qiao Xiufu.Study of seismites of China and its prospects[J].Geological Review,1996,42(4):317-320]
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9袁静.中国震积作用和震积岩研究进展[J].石油大学学报(自然科学版),2005,29(1):144-147[Yuan Jing.Research of seismic deposi-tion and seismites of China[J].Journal of the University of Petroleum,China(Nature Science Edition),2005,29(1):144-147]
10赵澄林.沉积学原理[M].北京:石油工业出版社,2001:185-195[Zhao Chenglin.Sedimentology Theory[M].Beijing:Petroleum In-dustry Press,2001:185-195]
11袁静.山东惠民凹陷古近纪震积岩特征及其地质意义[J].沉积学报,2004,22(1):41-44[Yuan Jing.The property and geological significance of seismites of Paleogene in Huimin Sag,Shandong Prov-ince[J].Acta Sedimentologica Sinica,2004,22(1):41-44]
12安明全.震积岩在岩心中的识别及研究[J].断块油气田,2005,12(3):25-27[An Mingquan.Identification and study on seismites in core[J].Fault-Block Oil&Gas Field,2005,12(3):25-27]
13付文利,王艳琴,杨光,等.东营凹陷沙三段、沙四段震积岩研究[J].油气地质与采收率,2004,11(2):6-8[Fu Wenli,Wang Yan-qin,Yang Guang,et al.Study on seismites of Sha3and Sha4mem-ber in Dongying Sag[J].Petroleum Geology and Recovery Efficien-cy,2004,11(2):6-8]
14邵辉成,苏刚.鄂尔多斯地块周缘近期地震活动趋势分析[J].西北地震学报,1999,21(4):395-406[Shao Huicheng,Su Gang.A-nalysis on the seismicity trend around the Ordos block[J].North-western Seismological Journal,1999,21(4):395-406]
15方炜,刘春,张春生.鄂尔多斯块体周缘中强地震序列类型及其活动特征[J].地震研究,2004,27(3):216-218[Fang Wei,Liu Chun,Zhang Chunshen.Type of mid-strong earthquake sequence and its active features at the edge of Ordos Block[J].Journal of Seismo-logical Research,2004,27(3):216-218]
16彭浩,彭美煊,啜永清.鄂尔多斯周缘地震活动性和近期地震趋势分析[J].东北地震研究,2001,17(3):7-14[Peng Hao,Peng Meixuan,Chuai Yongqing.Analysis on seismicity and earthquake tendency in the peripheral area of the Ordos[J].Seismological Re-search of Northeast China.2001,17(3):7-14]
17张国伟,张本仁,袁学诚,等.秦岭造山带与大陆动力学[M].北京:科学出版社,2001:1-165[Zhang Guowei,Zhang Benren,Yuan Xuecheng,et al.Qinling Orogene and Continental Dynamics[M].Beijing:Science Press,2000:1-165]
18刘池洋,赵红格,桂小军,等.鄂尔多斯盆地演化—改造的时空坐标及其成藏(矿)响应[J].地质学报,2006,80(5):617-633[Liu Chiyang,Zhao Hongge,Gui Xiaojun,et al.Space-time coordinate of the evolution and reformation and mineralization response in Ordos basin[J].Acta Geologica Sinica,2006,80(5):617-633]
19梁定益,聂泽同,宋志敏,等.正在萌芽阶段的震积地层学[J].高校地质学报,1997,3(4):458-461[Liang Dingyi,Nie Zetong,Song Zhimin,et al.Seismostratigraphy at its germination stage:a brief history of research on seismites and its prospect[J].Geological Journal of China Universities,1997,3(4):458-461]
2杜远生,韩欣.论震积作用和震积岩[J].地球科学进展,2000,15(4):389-394[Du Yuansheng,Han Xin.Seismo-deposition and seis-mites[J].Advance in Earth Sciences,2000,15(4):389-394]
3Michael J Simms.Uniquely extensive seismites from the latest Triassic of the United Kingdom:evidence for bolide impact[J].Geology,2003,31:557-560
4Heezen B C,Dyke C L.Grand bank Slump[J].AAPG Bulletin,1964,48(2):221-225
5Seilacher A.Fault-graded bed interpreted as seismites[J].Sedimen-toloy,1969,13(1-2):155-159
6乔秀夫,宋天锐,高林志,等.碳酸盐岩振动液化地震序列[J].地质学报,1994,68(1):16-32[Qiao Xiufu,Song Tianrui,Gao Linzhi,et al.Seismic sequence in carbonate rocks by vibrational liquefaction[J].Acta Geologica Sinica,1994,68(1):16-32]
7乔秀夫.中国震积岩的研究与展望[J].地质论评,1996,42(4):317-320[Qiao Xiufu.Study of seismites of China and its prospects[J].Geological Review,1996,42(4):317-320]
8吴贤涛,尹国勋.四川峨眉晚侏罗世湖泊沉积中震积岩的发现及其意义[J].沉积学报,1992,10(3):19-24[Wu Xiantao,Yin Guoxun.The discovery and significance of the seismites in late Jurassic lake sediment of Emei,Sichuan Province[J].Acta Sedimentologica Sinica,1992,10(3):19-24]
9袁静.中国震积作用和震积岩研究进展[J].石油大学学报(自然科学版),2005,29(1):144-147[Yuan Jing.Research of seismic deposi-tion and seismites of China[J].Journal of the University of Petroleum,China(Nature Science Edition),2005,29(1):144-147]
10赵澄林.沉积学原理[M].北京:石油工业出版社,2001:185-195[Zhao Chenglin.Sedimentology Theory[M].Beijing:Petroleum In-dustry Press,2001:185-195]
11袁静.山东惠民凹陷古近纪震积岩特征及其地质意义[J].沉积学报,2004,22(1):41-44[Yuan Jing.The property and geological significance of seismites of Paleogene in Huimin Sag,Shandong Prov-ince[J].Acta Sedimentologica Sinica,2004,22(1):41-44]
12安明全.震积岩在岩心中的识别及研究[J].断块油气田,2005,12(3):25-27[An Mingquan.Identification and study on seismites in core[J].Fault-Block Oil&Gas Field,2005,12(3):25-27]
13付文利,王艳琴,杨光,等.东营凹陷沙三段、沙四段震积岩研究[J].油气地质与采收率,2004,11(2):6-8[Fu Wenli,Wang Yan-qin,Yang Guang,et al.Study on seismites of Sha3and Sha4mem-ber in Dongying Sag[J].Petroleum Geology and Recovery Efficien-cy,2004,11(2):6-8]
14邵辉成,苏刚.鄂尔多斯地块周缘近期地震活动趋势分析[J].西北地震学报,1999,21(4):395-406[Shao Huicheng,Su Gang.A-nalysis on the seismicity trend around the Ordos block[J].North-western Seismological Journal,1999,21(4):395-406]
15方炜,刘春,张春生.鄂尔多斯块体周缘中强地震序列类型及其活动特征[J].地震研究,2004,27(3):216-218[Fang Wei,Liu Chun,Zhang Chunshen.Type of mid-strong earthquake sequence and its active features at the edge of Ordos Block[J].Journal of Seismo-logical Research,2004,27(3):216-218]
16彭浩,彭美煊,啜永清.鄂尔多斯周缘地震活动性和近期地震趋势分析[J].东北地震研究,2001,17(3):7-14[Peng Hao,Peng Meixuan,Chuai Yongqing.Analysis on seismicity and earthquake tendency in the peripheral area of the Ordos[J].Seismological Re-search of Northeast China.2001,17(3):7-14]
17张国伟,张本仁,袁学诚,等.秦岭造山带与大陆动力学[M].北京:科学出版社,2001:1-165[Zhang Guowei,Zhang Benren,Yuan Xuecheng,et al.Qinling Orogene and Continental Dynamics[M].Beijing:Science Press,2000:1-165]
18刘池洋,赵红格,桂小军,等.鄂尔多斯盆地演化—改造的时空坐标及其成藏(矿)响应[J].地质学报,2006,80(5):617-633[Liu Chiyang,Zhao Hongge,Gui Xiaojun,et al.Space-time coordinate of the evolution and reformation and mineralization response in Ordos basin[J].Acta Geologica Sinica,2006,80(5):617-633]
19梁定益,聂泽同,宋志敏,等.正在萌芽阶段的震积地层学[J].高校地质学报,1997,3(4):458-461[Liang Dingyi,Nie Zetong,Song Zhimin,et al.Seismostratigraphy at its germination stage:a brief history of research on seismites and its prospect[J].Geological Journal of China Universities,1997,3(4):458-461]
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