三角剪切模型及其在川东大池干构造解译中的应用
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摘要
介绍了三角剪切模型的原理与方法,并利用该模型对川东大池干构造地震剖面进行了构造解译及应变分析。模型的正演模拟结果与地震资料中所观察到的构造几何形态基本相符,表明大池干构造是典型的三角剪切构造。利用模拟结果对该地区断层相关褶皱体系的应变和断层滑动量的检验表明,该模型能够准确地反映大池干构造的地下特征,最大限度地解释已知地质信息,有助于对该地区的构造模式和构造演化进行深入研究。
The principle and method for the trishear model were introduced.The trishear model was applied to the structural interpretation and strain analysis of Dachigan structure in the eastern Sichuan Province. The results obtained from the forward modeling are in good accordance with the structural geometry observed from the seismic profile,which show that Dachigan structure is a typical trishear structure.The results of simulation verified the strain and the slip of the fault in the fault-related fold.This model can describe the underground features of Dachigan structure and is favorable to analyze the structure pattern and structure evolution in this region.
The principle and method for the trishear model were introduced.The trishear model was applied to the structural interpretation and strain analysis of Dachigan structure in the eastern Sichuan Province. The results obtained from the forward modeling are in good accordance with the structural geometry observed from the seismic profile,which show that Dachigan structure is a typical trishear structure.The results of simulation verified the strain and the slip of the fault in the fault-related fold.This model can describe the underground features of Dachigan structure and is favorable to analyze the structure pattern and structure evolution in this region.
引文
[1]Suppe J.Geometry and kinematics of faul-tbend folding[J].A-merican Journal of Science,1983,283(7):684-721.
[2]Suppe J,Medwedeff D A.Geometry and kinematics of fault-prop-agation folding[J].Ecolgae Geologicae Helvetiae,1990,83(3):409-454.
[3]Narr W,Suppe J.Kinematics of basement-involved compressivestructures[J].American Journal of Science,1994,294(7):802-860.
[4]Mitra S,Mount V.Foreland basement-involved structures[J].AAPG Bulletin,1998,82(1):70-109.
[5]Groshong R.3-D structural geology[M].Heidelberg:Springer-Verlag,1999:113-119.
[6]何登发,贾承造,周新源,等.多旋回叠合盆地构造控油原理[J].石油学报,2005,26(3):1-9.He Dengfa,Jia Chengzao,Zhou Xinyuan,et al.Control principlesof structures and tectonics over hydrocarbon accumulation anddistribution in mult-istage superimposed basins[J].Acta Petro-lei Sinica,2005,26(3):1-9.
[7]汪新,贾承造,杨树锋.南天山库车褶皱冲断带构造几何学和运动学[J].地质科学,2002,37(3):372-384.Wang Xin,Jia Chengzao,Yang Shufeng.Geometry and kinemat-ics of the Kuqa fold-and-thrust belt in southern Tianshan[J].Chinese Journal of Geology,2002,37(3):372-384.
[8]贾东,陈竹新,张惬,等.东营凹陷伸展断弯褶皱的构造几何学分析[J].大地构造与成矿学,2005,29(3):295-302.Jia Dong,Chen Zhuxin,Zhang Qie,et al.Structural geometric an-alyses on the extensional faul-tbend fold in the Dongying Depres-sion[J].Geotectonica et Metallogenia,2005,29(3):295-302.
[9]卢华复,陈楚铭,刘志宏,等.库车再生前陆逆冲带的构造特征与成因[J].石油学报,2000,21(3):18-24.Lu Huafu,Chen Chuming,Liu Zhihong,et al.The structural fea-tures and origin of the Kuqa rejuvenation foreland thrust belt[J].Acta Petrolei Sinica,2000,21(3):18-24.
[10]顾家裕,张光亚,李小地,等.理论技术和油气勘探的突破—以塔里木盆地勘探为例[J].石油学报,2002,23(1):6-10.Gu Jiayu,Zhang Guangya,Li Xiaodi,et al.Theory,technologyand petroleum exploration breakthrough—taking the Tarim Ba-sin,Northwest China as an example[J].Acta Petrolei Sinica,2002,23(1):6-10.
[11]漆家福,肖焕钦,张卫刚.东营凹陷主干边界断层(带)构造几何学、运动学特征及成因解释[J].石油勘探与开发,2003,30(3):8-12.Qi Jiafu,Xiao Huanqin,Zhang Weigang.Geometry,kinematicsand mechanism interpretation of the major boundary faults inDongying Sag[J].Petroleum Exploration and Development,2003,30(3):8-12.
[12]Wallace W K,Homza T X.Detachment folds versus fault propa-gation folds and their truncation by thrust faults[M]∥McClayK.Thrust tectonics and hydrocarbon systems.AAPG Memoir82,2004:324-355.
[13]Erslev E A.Trishear fault-propagation folding[J].Geology,1991,19(6):617-620.
[14]Hardy S,Ford M.Numerical modelling of trishear faul-tpropaga-tion folding[J].Tectonics,1997,16(5):841-854.
[15]Allmendinger R W.Inverse and forward numerical modeling oftrishear fault-propagation folds[J].Tectonics,1998,17(4):640-656.
[16]Allmendinger R W,Zapata T,Manceda R,et al.Trishear kine-matic modeling of structure,with example from the Neuquen Ba-sin,Argentina[M]∥McClay K.Thrust tectonics and hydrocar-bon systems.AAPG Memoir82,2004:356-371.
[17]Hardy S,McClay K.Kinematic modeling of extensional fault-propagation folding[J].Journal of Structural Geology,1999,21(7):695-702.
[18]Zehnder A T,Allmendinger R W.Velocity field for the trishearmodel[J].Journal of Structural Geology,2000,22(8):1009-1014.
[19]Jin Guohai,Groshong R H.Trishear kinematic modeling of ex-tensional faul-tpropagation folding[J].Journal of Structural Ge-ology,2006,28(1):170-183.
[20]刘尚忠.川东薄皮构造模式之我见[J].四川地质学报,1995,15(4):264-267.Liu Shangzhong.My opinion of structural pattern of thin-skinnedstructure in East Sichuan[J].Acta Geologica Sichuan,1995,15(4):264-267.
[21]童崇光.四川盆地构造演化与油气成藏[M].北京:地质出版社,1992:50-57.Tong Chongguang.The structural evolution and hydrocarbon ac-cumulation in Sichuan Basin[M].Beijing:Geological PublishingHouse,1992:50-57.
[22]戴金星,王庭斌,宋岩,等.中国大中型天然气田形成条件与分布规律[M].北京:地质出版社,1997:58-73.Dai Jinxing,Wang Tingbin,Song Yan,et al.Distributing charac-teristics and forming condition of large-middle scale gas fields inChina[M].Beijing:Geological Publishing House,1997:58-73.
[23]刘丽华,范明祥,徐强.川东高陡构造带构造模式分类[J].天然气工业,1999,19(5):88-90.Liu Lihua,Fan Mingxiang,Xu Qiang.Structure classification ofhigh and steep structural zones in East Sichuan[J].Natural GasIndustry,1999,19(5):88-90.
[24]刘德良,宋岩,薛爱民,等.四川盆地构造与天然气聚集区带综合研究[M].北京:石油工业出版社,2000:25-30.Liu Deliang,Song Yan,Xue Aimin,et al.The integrated researchon the structures and gas accumulation zone in Sichuan Basin[M].Beijing:Petroleum Industry Press,2000:25-30.
[25]王兰生,李宗银,沈平,等.四川盆地东部大中型气藏成烃条件分析[J].天然气地球科学,2004,15(6):567-571.Wang Lansheng,Li Zongyin,Shen Ping,et al.Analyses on thehydrocarbon generation conditions of the large and middle scalegas fields in eastern part of Sichuan Basin[J].Natural Gas Geo-science,2004,15(6):567-571.
[26]王一刚,陈盛吉,徐世琦,等.四川盆地古生界-上元古界天然气成藏条件及勘探技术[M].北京:石油工业出版社,2001:103-117.Wang Yigang,Chen Shengji,Xu Shiqi,et al.Exploration tech-niques and gas accumulation conditions for Sichuan Basin in Pale-ozoic and Upper Proterozoic[M].Beijing:Petroleum IndustryPress,2001:103-117.
[27]李忠权,冉隆辉,陈更生,等.川东高陡构造成因地质模式与含气性分析[J].成都理工学院学报,2002,29(6):605-609.Li Zhongquan,Ran Longhui,Chen Gengsheng,et al.Genetic geo-logic model and gas-bearing analysis of high and steep structuresin East Sichuan[J].Journal of Chengdu University of Technolo-gy,2002,29(6):605-609.
[28]陈伟,施泽进,卢华复,等.川东大池干构造的正演平衡剖面[J].石油实验地质,1992,14(4):443-453.Chen Wei,Shi Zejin,Lu Huafu,et al.Forward balanced crosssection of the Dachigan structure of East Sichuan[J].PetroleumGeology&Experiment,1992,14(4):443-453.
[29]刘树根,徐国盛,徐国强,等.四川盆地天然气成藏动力学初探[J].天然气地球科学,2004,15(4):323-330.Liu Shugen,Xu Guosheng,Xu Guoqiang,et al.Primary study onthe dynamics of natural gas pools in Sichuan Basin,China[J].Natural Gas Geoscience,2004,15(4):323-330.
[30]陈伟,卢华复,施泽进,等.平衡剖面的正演计算及其应用[J].地质科学,1993,28(2):117-126.Chen Wei,Lu Huafu,Shi Zejin,et al.Use of forward computationin construction of balanced cross section[J].Chinese Journal ofGeology,1993,28(2):117-126.
[31]蒲家奇,孟德勤,周文.川东大池干井构造带形成机理分析及挖潜勘探评价[J].天然气工业,1995,15(2):15-20.Pu Jiaqi,Meng Deqin,Zhou Wen.The analysis of formationmechanism of Dachiganjing structural belt and the evaluation oftapping explorative potentialities in East Sichuan[J].NaturalGas Industry,1995,15(2):15-20.
[32]周文,王允诚,蒲家奇,等.四川盆地大池干井构造带构造形成机理及勘探评价[J].四川地质学报,1994,14(1):25-30.Zhou Wen,Wang Yuncheng,Pu Jiaqi,et al.Genetic mechanismand prospecting significance of Dachiganjing structural zone inSichuan Basin[J].Acta Geologica Sichuan,1994,14(1):25-30.
[33]冯青平.川东大池干井构造带的构造分析[J].石油与天然气地质,1993,14(2):126-132.Feng Qingping.Structural analysis of Dachiganjing structuralzone in East Sichuan[J].Oil&Gas Geology,1993,14(2):126-132.
[2]Suppe J,Medwedeff D A.Geometry and kinematics of fault-prop-agation folding[J].Ecolgae Geologicae Helvetiae,1990,83(3):409-454.
[3]Narr W,Suppe J.Kinematics of basement-involved compressivestructures[J].American Journal of Science,1994,294(7):802-860.
[4]Mitra S,Mount V.Foreland basement-involved structures[J].AAPG Bulletin,1998,82(1):70-109.
[5]Groshong R.3-D structural geology[M].Heidelberg:Springer-Verlag,1999:113-119.
[6]何登发,贾承造,周新源,等.多旋回叠合盆地构造控油原理[J].石油学报,2005,26(3):1-9.He Dengfa,Jia Chengzao,Zhou Xinyuan,et al.Control principlesof structures and tectonics over hydrocarbon accumulation anddistribution in mult-istage superimposed basins[J].Acta Petro-lei Sinica,2005,26(3):1-9.
[7]汪新,贾承造,杨树锋.南天山库车褶皱冲断带构造几何学和运动学[J].地质科学,2002,37(3):372-384.Wang Xin,Jia Chengzao,Yang Shufeng.Geometry and kinemat-ics of the Kuqa fold-and-thrust belt in southern Tianshan[J].Chinese Journal of Geology,2002,37(3):372-384.
[8]贾东,陈竹新,张惬,等.东营凹陷伸展断弯褶皱的构造几何学分析[J].大地构造与成矿学,2005,29(3):295-302.Jia Dong,Chen Zhuxin,Zhang Qie,et al.Structural geometric an-alyses on the extensional faul-tbend fold in the Dongying Depres-sion[J].Geotectonica et Metallogenia,2005,29(3):295-302.
[9]卢华复,陈楚铭,刘志宏,等.库车再生前陆逆冲带的构造特征与成因[J].石油学报,2000,21(3):18-24.Lu Huafu,Chen Chuming,Liu Zhihong,et al.The structural fea-tures and origin of the Kuqa rejuvenation foreland thrust belt[J].Acta Petrolei Sinica,2000,21(3):18-24.
[10]顾家裕,张光亚,李小地,等.理论技术和油气勘探的突破—以塔里木盆地勘探为例[J].石油学报,2002,23(1):6-10.Gu Jiayu,Zhang Guangya,Li Xiaodi,et al.Theory,technologyand petroleum exploration breakthrough—taking the Tarim Ba-sin,Northwest China as an example[J].Acta Petrolei Sinica,2002,23(1):6-10.
[11]漆家福,肖焕钦,张卫刚.东营凹陷主干边界断层(带)构造几何学、运动学特征及成因解释[J].石油勘探与开发,2003,30(3):8-12.Qi Jiafu,Xiao Huanqin,Zhang Weigang.Geometry,kinematicsand mechanism interpretation of the major boundary faults inDongying Sag[J].Petroleum Exploration and Development,2003,30(3):8-12.
[12]Wallace W K,Homza T X.Detachment folds versus fault propa-gation folds and their truncation by thrust faults[M]∥McClayK.Thrust tectonics and hydrocarbon systems.AAPG Memoir82,2004:324-355.
[13]Erslev E A.Trishear fault-propagation folding[J].Geology,1991,19(6):617-620.
[14]Hardy S,Ford M.Numerical modelling of trishear faul-tpropaga-tion folding[J].Tectonics,1997,16(5):841-854.
[15]Allmendinger R W.Inverse and forward numerical modeling oftrishear fault-propagation folds[J].Tectonics,1998,17(4):640-656.
[16]Allmendinger R W,Zapata T,Manceda R,et al.Trishear kine-matic modeling of structure,with example from the Neuquen Ba-sin,Argentina[M]∥McClay K.Thrust tectonics and hydrocar-bon systems.AAPG Memoir82,2004:356-371.
[17]Hardy S,McClay K.Kinematic modeling of extensional fault-propagation folding[J].Journal of Structural Geology,1999,21(7):695-702.
[18]Zehnder A T,Allmendinger R W.Velocity field for the trishearmodel[J].Journal of Structural Geology,2000,22(8):1009-1014.
[19]Jin Guohai,Groshong R H.Trishear kinematic modeling of ex-tensional faul-tpropagation folding[J].Journal of Structural Ge-ology,2006,28(1):170-183.
[20]刘尚忠.川东薄皮构造模式之我见[J].四川地质学报,1995,15(4):264-267.Liu Shangzhong.My opinion of structural pattern of thin-skinnedstructure in East Sichuan[J].Acta Geologica Sichuan,1995,15(4):264-267.
[21]童崇光.四川盆地构造演化与油气成藏[M].北京:地质出版社,1992:50-57.Tong Chongguang.The structural evolution and hydrocarbon ac-cumulation in Sichuan Basin[M].Beijing:Geological PublishingHouse,1992:50-57.
[22]戴金星,王庭斌,宋岩,等.中国大中型天然气田形成条件与分布规律[M].北京:地质出版社,1997:58-73.Dai Jinxing,Wang Tingbin,Song Yan,et al.Distributing charac-teristics and forming condition of large-middle scale gas fields inChina[M].Beijing:Geological Publishing House,1997:58-73.
[23]刘丽华,范明祥,徐强.川东高陡构造带构造模式分类[J].天然气工业,1999,19(5):88-90.Liu Lihua,Fan Mingxiang,Xu Qiang.Structure classification ofhigh and steep structural zones in East Sichuan[J].Natural GasIndustry,1999,19(5):88-90.
[24]刘德良,宋岩,薛爱民,等.四川盆地构造与天然气聚集区带综合研究[M].北京:石油工业出版社,2000:25-30.Liu Deliang,Song Yan,Xue Aimin,et al.The integrated researchon the structures and gas accumulation zone in Sichuan Basin[M].Beijing:Petroleum Industry Press,2000:25-30.
[25]王兰生,李宗银,沈平,等.四川盆地东部大中型气藏成烃条件分析[J].天然气地球科学,2004,15(6):567-571.Wang Lansheng,Li Zongyin,Shen Ping,et al.Analyses on thehydrocarbon generation conditions of the large and middle scalegas fields in eastern part of Sichuan Basin[J].Natural Gas Geo-science,2004,15(6):567-571.
[26]王一刚,陈盛吉,徐世琦,等.四川盆地古生界-上元古界天然气成藏条件及勘探技术[M].北京:石油工业出版社,2001:103-117.Wang Yigang,Chen Shengji,Xu Shiqi,et al.Exploration tech-niques and gas accumulation conditions for Sichuan Basin in Pale-ozoic and Upper Proterozoic[M].Beijing:Petroleum IndustryPress,2001:103-117.
[27]李忠权,冉隆辉,陈更生,等.川东高陡构造成因地质模式与含气性分析[J].成都理工学院学报,2002,29(6):605-609.Li Zhongquan,Ran Longhui,Chen Gengsheng,et al.Genetic geo-logic model and gas-bearing analysis of high and steep structuresin East Sichuan[J].Journal of Chengdu University of Technolo-gy,2002,29(6):605-609.
[28]陈伟,施泽进,卢华复,等.川东大池干构造的正演平衡剖面[J].石油实验地质,1992,14(4):443-453.Chen Wei,Shi Zejin,Lu Huafu,et al.Forward balanced crosssection of the Dachigan structure of East Sichuan[J].PetroleumGeology&Experiment,1992,14(4):443-453.
[29]刘树根,徐国盛,徐国强,等.四川盆地天然气成藏动力学初探[J].天然气地球科学,2004,15(4):323-330.Liu Shugen,Xu Guosheng,Xu Guoqiang,et al.Primary study onthe dynamics of natural gas pools in Sichuan Basin,China[J].Natural Gas Geoscience,2004,15(4):323-330.
[30]陈伟,卢华复,施泽进,等.平衡剖面的正演计算及其应用[J].地质科学,1993,28(2):117-126.Chen Wei,Lu Huafu,Shi Zejin,et al.Use of forward computationin construction of balanced cross section[J].Chinese Journal ofGeology,1993,28(2):117-126.
[31]蒲家奇,孟德勤,周文.川东大池干井构造带形成机理分析及挖潜勘探评价[J].天然气工业,1995,15(2):15-20.Pu Jiaqi,Meng Deqin,Zhou Wen.The analysis of formationmechanism of Dachiganjing structural belt and the evaluation oftapping explorative potentialities in East Sichuan[J].NaturalGas Industry,1995,15(2):15-20.
[32]周文,王允诚,蒲家奇,等.四川盆地大池干井构造带构造形成机理及勘探评价[J].四川地质学报,1994,14(1):25-30.Zhou Wen,Wang Yuncheng,Pu Jiaqi,et al.Genetic mechanismand prospecting significance of Dachiganjing structural zone inSichuan Basin[J].Acta Geologica Sichuan,1994,14(1):25-30.
[33]冯青平.川东大池干井构造带的构造分析[J].石油与天然气地质,1993,14(2):126-132.Feng Qingping.Structural analysis of Dachiganjing structuralzone in East Sichuan[J].Oil&Gas Geology,1993,14(2):126-132.
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