柴达木盆地茫崖凹陷尕斯库勒油田新近系上干柴沟组震积岩特征及其地质意义
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摘要
柴达木盆地茫崖凹陷尕斯库勒油田新近系上干柴沟组发现大段非正常沉积,通过岩心观察,结合该地区的构造研究,确定该非正常沉积属于震积岩。借助岩心观察与对比,最终确定出该区6种震积岩的识别标志:负荷构造、砂球砂枕构造、振动液化卷曲变形、微同沉积断裂、环状层理、液化岩脉。同时,确定出研究区震积岩的垂向序列,由下至上,分别为下伏未震层、液化变形层、微断裂层、液化岩脉层、震塌角砾层、液化均一层、上覆未震层。震积岩的发现为该地区古地震、构造运动史提供了研究依据。同时,震积岩形成的层内微断裂,可以有效地改善渗流条件,为油气成藏提供重要渗流通道。
The Neogene upper Ganchaigou Formation strata of Gasikule oilfield found abnormal deposition,which located in Mang'ai depression,Qaidam Basin. Through the observation of core and the understanding of the tectonic study in this area,it is determined that the abnormal deposit belongs to the seismite. By means of core observation and comparison,absorbing the previous research on the seismites,determined the six kinds of seismites identification marks in study area. It includes load structure,sand ball and sand pillow structure,vibratory liquefaction curl deformation,micro synsedimentary fracture,ring bedding,liquefied vein. At the same time,the vertical sequence of the seismite in the study area is determined,from the bottom to the top,the lower normal layer,the liquefied deformation layer,the micro fracture layer,the liquefied rock vein layer,the collapse breccia layer,the liquefied homogeneous layer and the overlying normal layer. The discovery of seismite provides a basis for the study of the history of ancient earthquakes and tectonic movements in this area. Meanwhile,the inner microfracture of the seismite can effectively improve the percolation condition and provide an important percolation channel for oil and gas accumulation.
The Neogene upper Ganchaigou Formation strata of Gasikule oilfield found abnormal deposition,which located in Mang'ai depression,Qaidam Basin. Through the observation of core and the understanding of the tectonic study in this area,it is determined that the abnormal deposit belongs to the seismite. By means of core observation and comparison,absorbing the previous research on the seismites,determined the six kinds of seismites identification marks in study area. It includes load structure,sand ball and sand pillow structure,vibratory liquefaction curl deformation,micro synsedimentary fracture,ring bedding,liquefied vein. At the same time,the vertical sequence of the seismite in the study area is determined,from the bottom to the top,the lower normal layer,the liquefied deformation layer,the micro fracture layer,the liquefied rock vein layer,the collapse breccia layer,the liquefied homogeneous layer and the overlying normal layer. The discovery of seismite provides a basis for the study of the history of ancient earthquakes and tectonic movements in this area. Meanwhile,the inner microfracture of the seismite can effectively improve the percolation condition and provide an important percolation channel for oil and gas accumulation.
引文
[1]HEEZEN B C,EWING W M.Turbidity currents and submarine slumps,and the 1929 Grand Banks earthquake[J].American Journal of Science,1952,250(12):849-873.
[2]BARRETT P J.Effects of the 1964 Alaskan Earthquake on some shallow-water sediments in prince william sound,Southeast Alaska[J].Journal of Sedimentary Research,1966,36(4):992-1006.
[3]SEILACHER A.Fault-graded beds interpreted as seismites[J].Sedimentology,1969,13(1/2):155-159.
[4]宋天锐.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,1988,33(8):609-609.
[5]梁定益,聂泽同,万晓樵,等.试论震积岩及震积不整合---以川西、滇西地区为例[J].现代地质,1991,5(2):138-146.
[6]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(1):19-26.
[7]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):16-34.
[8]乔秀夫,高林志.华北中新元古代及早古生代地震灾变事件及与Rodinia的关系[J].科学通报,1999,44(16):1753-1758.
[9]乔秀夫,李海兵.沉积物的地震及古地震效应[J].古地理学报,2009,11(6):593-610.
[10]郭建华,王方平,刘贵,等.湘西大庸上震旦统灯影组震裂角砾岩[J].石油实验地质,1999,21(3):219-224.
[11]杨剑萍,王亚丽,查明,等.山东惠民凹陷古近系湖泊地震涌浪记录的新发现[J].地质学报,2006,80(11):1715-1720.
[12]杨剑萍,王辉,陈世悦,等.济阳拗陷古近系震积岩特征[J].沉积学报,2004,22(2):281-287.
[13]杨剑萍,聂玲玲,张琳璞,等.柴达木盆地西南缘乌南油田新近系古地震纪录及储集性能研究[J].地质学报,2008,82(6):805-812.
[14]石亚军,陈武杰,曹正林,等.柴达木盆地西南区震积岩的发现及其引发的勘探启迪[J].地质学报,2009,83(8):1178-1187.
[15]陈武杰,袁静,李红哲,等.柴达木盆地西南区震积作用及其研究意义[J].天然气地球科学,2010,21(2):230-237.
[16]朱萌,李德威,刘德民,等.柴达木盆地西南缘更新统震积岩特征及其意义[J].古地理学报,2011,13(6):657-664.
[17]谭先锋,蒋威,吴康军,等.柴达木盆地西南缘下干柴沟组震积岩的发现及地质意义[J].油气地质与采收率,2016,23(4):11-18.
[18]MORETTI M,PIERI P,TROPEANO M.Late Pleistocene soft-sediment deformation structure interpreted as seismites in paralic deposits in the City of Bari(Apulian Foreland,southern Italy)[J].Special Paper of the Geological Society of America,2002,359:75-85.
[19]夏青松.拗陷湖盆浊流、地震事件沉积研究---以鄂尔多斯盆地三叠系延长组长6-长8为例[D].成都:成都理工大学,2007.
[20]邵珠福,钟建华,范莉红,等.辽河西部凹陷南段沙河街组三段震积岩特征及石油地质意义[J].石油学报,2014,35(3):439-449.
[21]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.
[22]乔秀夫,李海兵.华北地台震旦纪-早古生代地震节律[J].地学前缘,1997(增刊):155-160.
[23]MONTENAT C,BARRIER P,D'ESTEVOU P O,et al.Seismites:An attempt at critical analysis and classification[J].Sedimentary Geology,2007,196(1):5-30.
[24]孙晓猛,梁定益,聂泽同.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,1995,9(3):271-278.
[25]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.
[26]魏垂高,张世奇,姜在兴,等.塔里木盆地志留系震积岩特征及其意义[J].地质学报,2007,81(6):827-833866.
[27]田媛,钟建华,王书宝,等.鄂尔多斯盆地富县探区三叠系延长组震积岩及其地质意义[J].古地理学报,2015,17(4):541-552.
[2]BARRETT P J.Effects of the 1964 Alaskan Earthquake on some shallow-water sediments in prince william sound,Southeast Alaska[J].Journal of Sedimentary Research,1966,36(4):992-1006.
[3]SEILACHER A.Fault-graded beds interpreted as seismites[J].Sedimentology,1969,13(1/2):155-159.
[4]宋天锐.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,1988,33(8):609-609.
[5]梁定益,聂泽同,万晓樵,等.试论震积岩及震积不整合---以川西、滇西地区为例[J].现代地质,1991,5(2):138-146.
[6]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(1):19-26.
[7]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):16-34.
[8]乔秀夫,高林志.华北中新元古代及早古生代地震灾变事件及与Rodinia的关系[J].科学通报,1999,44(16):1753-1758.
[9]乔秀夫,李海兵.沉积物的地震及古地震效应[J].古地理学报,2009,11(6):593-610.
[10]郭建华,王方平,刘贵,等.湘西大庸上震旦统灯影组震裂角砾岩[J].石油实验地质,1999,21(3):219-224.
[11]杨剑萍,王亚丽,查明,等.山东惠民凹陷古近系湖泊地震涌浪记录的新发现[J].地质学报,2006,80(11):1715-1720.
[12]杨剑萍,王辉,陈世悦,等.济阳拗陷古近系震积岩特征[J].沉积学报,2004,22(2):281-287.
[13]杨剑萍,聂玲玲,张琳璞,等.柴达木盆地西南缘乌南油田新近系古地震纪录及储集性能研究[J].地质学报,2008,82(6):805-812.
[14]石亚军,陈武杰,曹正林,等.柴达木盆地西南区震积岩的发现及其引发的勘探启迪[J].地质学报,2009,83(8):1178-1187.
[15]陈武杰,袁静,李红哲,等.柴达木盆地西南区震积作用及其研究意义[J].天然气地球科学,2010,21(2):230-237.
[16]朱萌,李德威,刘德民,等.柴达木盆地西南缘更新统震积岩特征及其意义[J].古地理学报,2011,13(6):657-664.
[17]谭先锋,蒋威,吴康军,等.柴达木盆地西南缘下干柴沟组震积岩的发现及地质意义[J].油气地质与采收率,2016,23(4):11-18.
[18]MORETTI M,PIERI P,TROPEANO M.Late Pleistocene soft-sediment deformation structure interpreted as seismites in paralic deposits in the City of Bari(Apulian Foreland,southern Italy)[J].Special Paper of the Geological Society of America,2002,359:75-85.
[19]夏青松.拗陷湖盆浊流、地震事件沉积研究---以鄂尔多斯盆地三叠系延长组长6-长8为例[D].成都:成都理工大学,2007.
[20]邵珠福,钟建华,范莉红,等.辽河西部凹陷南段沙河街组三段震积岩特征及石油地质意义[J].石油学报,2014,35(3):439-449.
[21]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.
[22]乔秀夫,李海兵.华北地台震旦纪-早古生代地震节律[J].地学前缘,1997(增刊):155-160.
[23]MONTENAT C,BARRIER P,D'ESTEVOU P O,et al.Seismites:An attempt at critical analysis and classification[J].Sedimentary Geology,2007,196(1):5-30.
[24]孙晓猛,梁定益,聂泽同.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,1995,9(3):271-278.
[25]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.
[26]魏垂高,张世奇,姜在兴,等.塔里木盆地志留系震积岩特征及其意义[J].地质学报,2007,81(6):827-833866.
[27]田媛,钟建华,王书宝,等.鄂尔多斯盆地富县探区三叠系延长组震积岩及其地质意义[J].古地理学报,2015,17(4):541-552.
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