鄂尔多斯盆地上三叠统延长组长4+5油层组中的古地震记录
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摘要
鄂尔多斯盆地上三叠统延长组长4+5油层组湖泊三角洲前缘沉积中同生变形构造十分发育。通过对岩心观察及各种资料的综合分析,认为砂球、砂枕、球—枕构造、微断层递变层、微裂缝、液化卷曲变形等同生变形构造主要是由震积液化作用形成的。震积作用沉积可分为A、B、C、D、E等5个单元,分别组合形成ABCD型、BCD型或CD型、AB型、BCE型或BE型、BEBE型5种沉积序列类型,其中BCD型(CD型)和AB型最为发育。通过对古构造的分析,认为晚三叠世鄂尔多斯盆地拗陷中心的北西向基底"活化"及北西、北东向同生正断层的活动是导致该区古地震形成的主要原因。
Syndepositional deformation structures were well developed in the lacustrine delta front deposits of Chang 4+5 oil-bearing intervals of the Upper Triassic Yanchang Formation in the Ordos Basin.It is concluded that these structures,such as sand balls,sand pillows,ball-pillows,graded micro-faults,micro-fissures,liquefied convolute deformation beddings were mainly produced by seismic liquefaction.According to seismite sedimentary characteristics,seismic sedimentary process can be divided into A,B,C,D and E units,which are respectively associated into five sedimentary sequence types,namely as type ABCD,BCD or CD,AB,BCE or BE and BEBE,of which types BCD(CD)and AB are the most dominant types.Through analyses of the palaeo-tectonics,it indicates that the paleo-seismic activities are mainly formed due to the activation of the northwest-trending basement and the activities of the northwest-trending and northeast-trending growth normal faults in the depression center during the Late Triassic in the Ordos Basin.
Syndepositional deformation structures were well developed in the lacustrine delta front deposits of Chang 4+5 oil-bearing intervals of the Upper Triassic Yanchang Formation in the Ordos Basin.It is concluded that these structures,such as sand balls,sand pillows,ball-pillows,graded micro-faults,micro-fissures,liquefied convolute deformation beddings were mainly produced by seismic liquefaction.According to seismite sedimentary characteristics,seismic sedimentary process can be divided into A,B,C,D and E units,which are respectively associated into five sedimentary sequence types,namely as type ABCD,BCD or CD,AB,BCE or BE and BEBE,of which types BCD(CD)and AB are the most dominant types.Through analyses of the palaeo-tectonics,it indicates that the paleo-seismic activities are mainly formed due to the activation of the northwest-trending basement and the activities of the northwest-trending and northeast-trending growth normal faults in the depression center during the Late Triassic in the Ordos Basin.
引文
杜远生,韩欣.2000.论震积作用和震积岩[J].地球科学进展,15(4):328-394.
杜远生,G.Shi,龚一鸣,等.2007.东澳大利亚南悉尼盆地二叠系与地震沉积有关的软沉积变形构造[J].地质学报,81(04):511-520.
付金华,郭正权,邓秀芹.2005.鄂尔多斯盆地西南地区上三叠统延长组沉积相及石油地质意义[J].古地理学报,7(1):34-44.
付文利,王艳琴,杨光,等.2004.东营凹陷沙三段、沙四段震积岩研究[J].油气地质与采收率,11(2):6-9.
郭胜哲.1999.辽宁太子河盆地新元古界—下古生界层序地层和事件地层[J].现代地质,5(2):18-22.
龚一鸣.1988.风暴岩、震积岩、海啸岩——几个名词含义的商榷[J].地质论评,34(5):481-482.
宫丽清,杨剑萍.2007.济阳坳陷古近系沙河街组震积岩特征及其储集性能[J].新疆石油地质,28(1):44-47.
何自新,等.2003.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,88-109.
贾松,彭军,刘建锋.2006.国内震积岩研究现状[J].地质灾害与环境保护,17(1):39-44.
梁定益,聂泽同,宋志敏.1994.再论震积岩及震积不整合——以川西、滇西地区为例[J].地球科学——中国地质大学学报,19(6):175-182.
乔秀夫.1996.中国震积岩的研究与展望[J].地质论评,42(4):317-320.
乔秀夫,高林志.2007.燕辽裂陷槽中元古代古地震与古地理[J].古地理学报,9(4):337-353.
乔秀夫,李海兵,高林志.1997.华北地台震旦纪—早古生代地震节律[J].地学前缘,4(3-4):155-160.
乔秀夫,李海兵,王思恩,等.2008.新疆境内塔拉斯—费尔干纳断裂早侏罗世走滑的古地震证据[J].地质学报,82(6):721-730.
乔秀夫,宋天锐,高林志,等.1994.碳酸盐岩振动液化地震序列[J].地质学报,68(1):16-32.
乔秀夫,宋天锐,高林志,等.2006.地层中地震记录(古地震)[M].北京:地质出版社,1-263.
宋天锐.1988.北京十三陵前寒武纪碳酸盐岩地层中的一套可能的地震—海啸序列[J].科学通报,38(8):609-611.
孙晓猛,梁定益,聂泽同.1995.大陆边缘震积岩序列——以金沙江中段震积岩为例[J].现代地质,9(3):271-278.
武富礼,李文厚,李玉宏,等.2004.鄂尔多斯盆地上三叠统延长组三角洲沉积及演化[J].古地理学报,6(3):307-315.
吴贤涛,尹国勋.1992.四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,10(3):19-24.
夏青松,田景春,黄昌武.2007.鄂尔多斯盆地上三叠统延长组震积岩识别标志研究[J].成都理工大学学报(自然科学版),34(3):312-317.
尹国勋,李春生.1993.震积构造特征[J].河南理工大学学报(自然科学版),31(2):25-29.
Ager D V.1981.The Nature of the Stratigraphic Record(second ed.)[M].London:Macmillan Press,1-122.
Seilacher A.1969.Fault-graded bed interpreted as seismites[J].Sedim-entoloy,13(1,2):155-159.
Seilacher A.1984.Sedimentary structures tentatively attributed to seismicevents[J].Mar Geol,55(1,2):1-12.
Wright L D.1984.Marine Geology[M].The University of North CarolinaPress,1-256.
杜远生,G.Shi,龚一鸣,等.2007.东澳大利亚南悉尼盆地二叠系与地震沉积有关的软沉积变形构造[J].地质学报,81(04):511-520.
付金华,郭正权,邓秀芹.2005.鄂尔多斯盆地西南地区上三叠统延长组沉积相及石油地质意义[J].古地理学报,7(1):34-44.
付文利,王艳琴,杨光,等.2004.东营凹陷沙三段、沙四段震积岩研究[J].油气地质与采收率,11(2):6-9.
郭胜哲.1999.辽宁太子河盆地新元古界—下古生界层序地层和事件地层[J].现代地质,5(2):18-22.
龚一鸣.1988.风暴岩、震积岩、海啸岩——几个名词含义的商榷[J].地质论评,34(5):481-482.
宫丽清,杨剑萍.2007.济阳坳陷古近系沙河街组震积岩特征及其储集性能[J].新疆石油地质,28(1):44-47.
何自新,等.2003.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,88-109.
贾松,彭军,刘建锋.2006.国内震积岩研究现状[J].地质灾害与环境保护,17(1):39-44.
梁定益,聂泽同,宋志敏.1994.再论震积岩及震积不整合——以川西、滇西地区为例[J].地球科学——中国地质大学学报,19(6):175-182.
乔秀夫.1996.中国震积岩的研究与展望[J].地质论评,42(4):317-320.
乔秀夫,高林志.2007.燕辽裂陷槽中元古代古地震与古地理[J].古地理学报,9(4):337-353.
乔秀夫,李海兵,高林志.1997.华北地台震旦纪—早古生代地震节律[J].地学前缘,4(3-4):155-160.
乔秀夫,李海兵,王思恩,等.2008.新疆境内塔拉斯—费尔干纳断裂早侏罗世走滑的古地震证据[J].地质学报,82(6):721-730.
乔秀夫,宋天锐,高林志,等.1994.碳酸盐岩振动液化地震序列[J].地质学报,68(1):16-32.
乔秀夫,宋天锐,高林志,等.2006.地层中地震记录(古地震)[M].北京:地质出版社,1-263.
宋天锐.1988.北京十三陵前寒武纪碳酸盐岩地层中的一套可能的地震—海啸序列[J].科学通报,38(8):609-611.
孙晓猛,梁定益,聂泽同.1995.大陆边缘震积岩序列——以金沙江中段震积岩为例[J].现代地质,9(3):271-278.
武富礼,李文厚,李玉宏,等.2004.鄂尔多斯盆地上三叠统延长组三角洲沉积及演化[J].古地理学报,6(3):307-315.
吴贤涛,尹国勋.1992.四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,10(3):19-24.
夏青松,田景春,黄昌武.2007.鄂尔多斯盆地上三叠统延长组震积岩识别标志研究[J].成都理工大学学报(自然科学版),34(3):312-317.
尹国勋,李春生.1993.震积构造特征[J].河南理工大学学报(自然科学版),31(2):25-29.
Ager D V.1981.The Nature of the Stratigraphic Record(second ed.)[M].London:Macmillan Press,1-122.
Seilacher A.1969.Fault-graded bed interpreted as seismites[J].Sedim-entoloy,13(1,2):155-159.
Seilacher A.1984.Sedimentary structures tentatively attributed to seismicevents[J].Mar Geol,55(1,2):1-12.
Wright L D.1984.Marine Geology[M].The University of North CarolinaPress,1-256.
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