准噶尔盆地不同期次石炭系断裂特征及分布
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摘要
石炭系断裂十分发育,断裂样式有逆冲、背冲、对冲断裂类型,断裂平面分布具有明显的分区定向性,断裂主要沿NE—SW向、NWW—NEE向、NEE—SWW向、NW—SE向、近EW向5个方向展布。断裂发育时期特征明显,各期构造运动对石炭系断裂发育及分布的影响程度有较大差别。现今石炭系断裂应是多期构造运动叠加的产物,在地震剖面上通过分析断裂及其相邻地层所具有的反射特征的差别,根据断裂上下地层的变形特征、厚度变化和断裂切割地层年代的差异来判别断裂发育的时期和持续的时段,将石炭系断裂按发育时期进行分离,再现各个主要构造运动期石炭系断裂的平面分布特征。盆地石炭系断裂按主要发育时期可分为海西期断裂、印支期断裂和燕山期—喜马拉雅期断裂。海西期断裂是石炭系发育的主要断裂,海西期发育的断裂多数在后期又继续活动,仅在海西期发育而后期不再活动的石炭系断裂主要分布在盆地腹部地区;印支期发育而后期不再活动的石炭系断裂主要分布在盆地东北缘地区;仅在燕山期—喜马拉雅期发育的石炭系断裂主要分布在盆地东部地区。
With many faults in Carboniferous,the styles of the faults are diversity,there are thrust fault,back fault and flushes fault.As a zonality of plane distribution,the faults spread in five directions,i.e.,northeast to southwest,northwest to west and northeast to east,northeast to east and northwest to west,northwest and northeast,and near east to west.The characteristics of the fault development period are very obvious,and the different tectonic movements effected differently on the fault development and on the fault distribution.The present faults in Carboniferous are as a result of many stacking tectonic movements.According to faults analysing in seismic profiles and reflection characteristics of neighbor strata,based on deformation characteristics between the above and under formations,changes in the thickness and difference of time faults cutting strata,the periods of fault development and fault duration are judged.So the faults in Carboniferous were separated by the the fault development period,and the plane distribution of faults in very key tectonic movement time is clear.The Carboniferous faults of Junggar basin are divided by its times into Hercynian fault,Indosinian fault and Yanshanian-Himalayan fault.The Hercynian fault is the foremost Carboniferous fault,and this kind fault continues to act in the last time.In general,the Carboniferous fault just growing in Hercynian mainly distributes in the hinterland of Junggar basin,in Indosinian mainly distributes in the northeast margin of Junggar basin and in Yanshanian-Himalayan mainly distributes in the east area of Junggar basin.
With many faults in Carboniferous,the styles of the faults are diversity,there are thrust fault,back fault and flushes fault.As a zonality of plane distribution,the faults spread in five directions,i.e.,northeast to southwest,northwest to west and northeast to east,northeast to east and northwest to west,northwest and northeast,and near east to west.The characteristics of the fault development period are very obvious,and the different tectonic movements effected differently on the fault development and on the fault distribution.The present faults in Carboniferous are as a result of many stacking tectonic movements.According to faults analysing in seismic profiles and reflection characteristics of neighbor strata,based on deformation characteristics between the above and under formations,changes in the thickness and difference of time faults cutting strata,the periods of fault development and fault duration are judged.So the faults in Carboniferous were separated by the the fault development period,and the plane distribution of faults in very key tectonic movement time is clear.The Carboniferous faults of Junggar basin are divided by its times into Hercynian fault,Indosinian fault and Yanshanian-Himalayan fault.The Hercynian fault is the foremost Carboniferous fault,and this kind fault continues to act in the last time.In general,the Carboniferous fault just growing in Hercynian mainly distributes in the hinterland of Junggar basin,in Indosinian mainly distributes in the northeast margin of Junggar basin and in Yanshanian-Himalayan mainly distributes in the east area of Junggar basin.
引文
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[14]李树新,何光玉,何开泉,等.准噶尔盆地南缘霍玛吐构造带晚新生代构造变形特征及时间[J].浙江大学学报(理学版),2008,35(4):460-463.
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[19]谭开俊,张帆,吴晓智,等.准噶尔盆地西北缘盆山耦合与油气成藏[J].天然气工业,2008,28(5):10-13.
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[21]李锦轶,何国琦,徐新,等.新疆北部及邻区地壳构造格架及其形成过程的初步探讨[J].地质学报,2006,80(1):148-168.
[22]赵白.准噶尔盆地的构造特征与构造划分[J].新疆石油地质,1993,33(5):225-233.
[23]周路,靳利超,雷德文,等.北三台凸起石炭系火山岩地震响应及分布规律[J].西南石油大学学报(自然科学版),2008,30(6):5-10.
[2]林祖彬,吴兴华,王燕,等.准噶尔盆地石炭系基底构造带区划与油气分布[J].新疆石油地质,2006,27(4):389-393.
[3]鲁兵,张进,李涛,等.准噶尔盆地构造格架分析[J].新疆石油地质,2008,29(3):383-389.
[4]蔡忠贤,陈发景,贾振远.准噶尔盆地的类型和构造演化[J].地学前缘,2000,7(4):431-440.
[5]吴庆福.准噶尔盆地构造演化与找油领域[J].新疆地质,1986,4(3):1-9.
[6]马宗晋,曲国胜,李涛,等.准噶尔盆地盆山构造耦合与分段性[J].新疆石油地质,2008,29(3):271-277.
[7]鲁兵,徐可强.准噶尔盆地断裂活动与油气运聚的关系.新疆石油地质,2003,24(6):502-504.
[8]何琰,牟中海.准噶尔盆地不整合类型和分布规律[J].西南石油大学学报,2007,29(2):61-64.
[9]周路,张义杰,雷德文,等.准噶尔盆地莫索湾凸起构造特征[J].中国石油勘探,2005,05(1):16-21.
[10]周路,王绪龙,雷德文,等.准噶尔盆地莫索湾凸起石炭系上部岩性预测[J].中国石油勘探,2006,6(1):69-79.
[11]周路.莫索湾凸起石炭系古隆起构造演化分析[C]//博士后研究成果论文集.北京:石油工业出版社,2005.
[12]王伟锋,王毅,陆诗阔,等.准噶尔盆地构造分区和变形样式[J].地震地质,1999,21(4):324-333.
[13]李忠权,胡晓强,应丹琳,等.准噶尔盆地南缘西部构造系统划分[J].成都理工大学学报(自然科学版),2003,30(6):567-569.
[14]李树新,何光玉,何开泉,等.准噶尔盆地南缘霍玛吐构造带晚新生代构造变形特征及时间[J].浙江大学学报(理学版),2008,35(4):460-463.
[15]陈业全,王伟锋.准噶尔盆地构造演化与油气成藏特征[J].石油大学学报(自然科学版),2004,28(3):4-8.
[16]赵白.准噶尔盆地的形成与演化[J].新疆石油地质,1992,13(3):191-196.
[17]邢强,朱有乾,方琳浩.从周缘盆—山耦合区带剖面结构特征分析准噶尔盆地构造演化[J].天然气地球科学,2008,19(3):372-376.
[18]薛新克,王廷栋,张虎权,等.准噶尔盆地深部地壳构造特征与油气勘探方向[J].天然气工业,2006,26(10):37-41.
[19]谭开俊,张帆,吴晓智,等.准噶尔盆地西北缘盆山耦合与油气成藏[J].天然气工业,2008,28(5):10-13.
[20]吴孔友,查明,王绪龙,等.准噶尔盆地构造演化与动力学背景再认识[J].地球学报,2005,26(3):217-222.
[21]李锦轶,何国琦,徐新,等.新疆北部及邻区地壳构造格架及其形成过程的初步探讨[J].地质学报,2006,80(1):148-168.
[22]赵白.准噶尔盆地的构造特征与构造划分[J].新疆石油地质,1993,33(5):225-233.
[23]周路,靳利超,雷德文,等.北三台凸起石炭系火山岩地震响应及分布规律[J].西南石油大学学报(自然科学版),2008,30(6):5-10.
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