柯克亚周缘构造特征差异及其原因
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摘要
柯克亚周缘地区具有与柯克亚相似的优越油气源条件和成藏条件,构造解释成为其勘探成功与否的关键.本文通过对柯克亚及其周缘地区地震,非地震,钻井,野外露头的综合分析,依据现代冲断带构造理论分析了三条分别切过柯西,柯克亚和柯东的南北向剖面,研究了不同构造段的几何学和运动学特征,并进行了细致的比较.认为它们构造特征的差异主要体现在反冲构造,冲起构造的发育和逆冲推覆的规模上.造成差异的主要原因在于其盆山边界动力条件不同,基底差异和早期构造的影响等.
The study on the hydrocarbon source and petroleum accumulation in the adjacent area of Kekeya shows that there is very good petroleum geological condition in these areas as that in the Kekeya area.Now whether we can give a correct tectonic interpretation has been the key to succeed in our exploration.According to the modern theory of thrust belt tectonics together with the seismic,non-seismic,drilling,and field outcrop data of the adjacent area of Kekeya,we select three N-S sections across the Kexi(west of Kekeya),Kekeya and Kedong(east of Kekeya),respectively,to analyze the geometrical and kinematical features of structural segments and to identify the distinction among them in detail.It can be concluded that the main difference of their tectonic features was characterized by the development of the reverse thrusting and pop-up structure,and the size of thrust nappe.The main cause for the difference is the different border condition between the mountain and the basin,and the basement and the effect of earlier tectonism.
The study on the hydrocarbon source and petroleum accumulation in the adjacent area of Kekeya shows that there is very good petroleum geological condition in these areas as that in the Kekeya area.Now whether we can give a correct tectonic interpretation has been the key to succeed in our exploration.According to the modern theory of thrust belt tectonics together with the seismic,non-seismic,drilling,and field outcrop data of the adjacent area of Kekeya,we select three N-S sections across the Kexi(west of Kekeya),Kekeya and Kedong(east of Kekeya),respectively,to analyze the geometrical and kinematical features of structural segments and to identify the distinction among them in detail.It can be concluded that the main difference of their tectonic features was characterized by the development of the reverse thrusting and pop-up structure,and the size of thrust nappe.The main cause for the difference is the different border condition between the mountain and the basin,and the basement and the effect of earlier tectonism.
引文
陈新安,张兴林,屈秋平,周洪清,邱斌,彭琪宇.1999.塔西南山前构造特征及含油气前景.新疆石油地质,20(6):468-472.
何登发,吕修祥,董大忠,林永汉.1994.前陆盆地分析.北京:石油工业出版社,369-384.
侯读杰,肖中尧,唐友军,朱俊章,李贤庆.2003.柯克亚油气田混合来源天然气的地球化学特征.天然气地球科学,14(6):474-479.
贾承造.2004.塔里木盆地板块构造与大陆动力学.北京:石油工业出版社,30-56.
李向东,王克卓.2000.塔里木盆地西南及邻区特提斯格局和构造意义.新疆地质,18(2):113-120.
李向东,王克卓.2002.西昆仑山北缘盆山构造转换解析.新疆地质,20(增刊):19-25.
刘胜,汪新,伍秀芳,邱斌.2004.塔西南山前晚新生代构造生长地层及变形时代.石油学报,25(5):24-28.
刘太勋,徐怀民,焦翠华.2007.柯克亚气田古近系凝析气藏储层特征.天然气工业,27(4):18-20.
马华东,杨子江.2003.塔里木盆地西南新生代盆地演化特征.新疆地质,21(1):92-95.
曲国胜,李亦纲,李岩峰,Canerot J,陈新发,尹军平,陈新安,张宁,Deramond J.2005.塔里木盆地西南前陆构造分段及其成因.中国科学(D辑,地质科学),35(3):193-202.
伍秀芳,刘胜,汪新,杨树锋,顾雪梅.2004.帕米尔-西昆仑山麓新生代前陆褶皱冲断带构造剖面分析.地质科学,39(2):260-271.
向奎.2006.塔里木盆地西南边缘压扭构造体系及其石油地质意义.古地理学报,8(2):233-240.
肖安成,杨树锋,陈汉林,贾承造,魏国齐.2000.西昆仑山前冲断系的结构特征.地学前缘(中国地质大学,北京),7(增刊):128-135.
Burtman V S and Molnar P.1993.Geological and geophysicalevidence for deep subduction of continental crust beneaththe Pamir.Geological Society of America Special Paper,286:1-76.
Suppe J and Medvedeff D A.1990.Geometry and kinematics offault-propagation folding.Eclog Geol Helv,83:409-454.
Suppe J.1983.Geometry and kinematics of fault bend folding.Amer Jour Sci,283:684-721.
Wallace W K and Homza T X.2004.Detachment folds versusfault-propagation folds,and their truncation by thrustfaults.In:McClay K R(ed).Thrust tectonics and hydro-carbon systems.AAPAMemoir,82:324-355.
何登发,吕修祥,董大忠,林永汉.1994.前陆盆地分析.北京:石油工业出版社,369-384.
侯读杰,肖中尧,唐友军,朱俊章,李贤庆.2003.柯克亚油气田混合来源天然气的地球化学特征.天然气地球科学,14(6):474-479.
贾承造.2004.塔里木盆地板块构造与大陆动力学.北京:石油工业出版社,30-56.
李向东,王克卓.2000.塔里木盆地西南及邻区特提斯格局和构造意义.新疆地质,18(2):113-120.
李向东,王克卓.2002.西昆仑山北缘盆山构造转换解析.新疆地质,20(增刊):19-25.
刘胜,汪新,伍秀芳,邱斌.2004.塔西南山前晚新生代构造生长地层及变形时代.石油学报,25(5):24-28.
刘太勋,徐怀民,焦翠华.2007.柯克亚气田古近系凝析气藏储层特征.天然气工业,27(4):18-20.
马华东,杨子江.2003.塔里木盆地西南新生代盆地演化特征.新疆地质,21(1):92-95.
曲国胜,李亦纲,李岩峰,Canerot J,陈新发,尹军平,陈新安,张宁,Deramond J.2005.塔里木盆地西南前陆构造分段及其成因.中国科学(D辑,地质科学),35(3):193-202.
伍秀芳,刘胜,汪新,杨树锋,顾雪梅.2004.帕米尔-西昆仑山麓新生代前陆褶皱冲断带构造剖面分析.地质科学,39(2):260-271.
向奎.2006.塔里木盆地西南边缘压扭构造体系及其石油地质意义.古地理学报,8(2):233-240.
肖安成,杨树锋,陈汉林,贾承造,魏国齐.2000.西昆仑山前冲断系的结构特征.地学前缘(中国地质大学,北京),7(增刊):128-135.
Burtman V S and Molnar P.1993.Geological and geophysicalevidence for deep subduction of continental crust beneaththe Pamir.Geological Society of America Special Paper,286:1-76.
Suppe J and Medvedeff D A.1990.Geometry and kinematics offault-propagation folding.Eclog Geol Helv,83:409-454.
Suppe J.1983.Geometry and kinematics of fault bend folding.Amer Jour Sci,283:684-721.
Wallace W K and Homza T X.2004.Detachment folds versusfault-propagation folds,and their truncation by thrustfaults.In:McClay K R(ed).Thrust tectonics and hydro-carbon systems.AAPAMemoir,82:324-355.
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