青东地区新生代断层发育特征及其对沉积的控制作用
|
摘要
对穿过青东地区新生代主要断层的地震测线进行了详细的解释和分析,以了解该区断层的发育演化特征及其对沉积的控制作用。结果表明:青东地区新生代主要发育北西、近东西、北北东、北东(东)走向断裂;北西及多数近东西向断层在新生代继承性活动,在孔店组沉积时期活动最强烈,同时控制了孔店组—沙四段沉积时期北西向盆地格局以及孔店组残留厚度最大、沙四段减薄的沉积特征;北东(东)向断层大多形成于古近纪,在沙四段沉积时期强烈活动,并控制了沙三段沉积时期以及之后北东(东)向盆地格局、与沙三段相比沙四段残留厚度有所增大(小于孔店组)、沙二段继续减薄、沙一段—东营组缺失的沉积特征;自下而上残留厚度最大地区逐渐向北迁移,地层展布方向具有由孔店组—沙四段—沙三段—沙二段由北西向—近东西向—北东东向—北东向逐渐变化的趋势。
In order to investigate the development characteristic of Cenozoic faults and its influence on the deposition in Qingdong area,several seismic sections cutting the main faults area were interpreted and analyzed in detail.The study results show that there are four fault groups,which are NW,nearly EW,NNE and NE(E) trend since Cenozoic in Qingdong area.NW and mostly EW trend faults continue its activities and peaked in Ek periods,in the meantime,they have controlled the NW trend basin pattern in Ek-Es4 periods and the sedimentary characteristics with largest residual thickness in Ek periods and thinning in Es4 periods.NE,NE(E) trend faults mainly formed in Paleogene and peaked in Es4 periods,and controlled the NE(E) trend basin pattern since Es3 periods and sedimentary characteristics with higher Es4 residue thickness compared to in Es3 periods (less than Ek),continually thinning in Es2 periods,and hiatus in Es1 to Ed periods.The thickest residual depositional area gradually migrated northwards,with the strata distribution showing a gradual trend from the NW-near EW to NEE-NE from the Ek-Es4 to Es3-Es2 periods.
In order to investigate the development characteristic of Cenozoic faults and its influence on the deposition in Qingdong area,several seismic sections cutting the main faults area were interpreted and analyzed in detail.The study results show that there are four fault groups,which are NW,nearly EW,NNE and NE(E) trend since Cenozoic in Qingdong area.NW and mostly EW trend faults continue its activities and peaked in Ek periods,in the meantime,they have controlled the NW trend basin pattern in Ek-Es4 periods and the sedimentary characteristics with largest residual thickness in Ek periods and thinning in Es4 periods.NE,NE(E) trend faults mainly formed in Paleogene and peaked in Es4 periods,and controlled the NE(E) trend basin pattern since Es3 periods and sedimentary characteristics with higher Es4 residue thickness compared to in Es3 periods (less than Ek),continually thinning in Es2 periods,and hiatus in Es1 to Ed periods.The thickest residual depositional area gradually migrated northwards,with the strata distribution showing a gradual trend from the NW-near EW to NEE-NE from the Ek-Es4 to Es3-Es2 periods.
引文
[1]俞家声,王普伟,林玉祥.青东凹陷油气资源潜力[J].油气地质与采收率,2001,8(1):5-8.
[2]李春荣,辛仁臣,李建平,等.郯庐断裂对青东凹陷古近纪沉积体系的控制[J].新疆石油地质,2008,29(2):209-213.
[3]吴时国,余朝华,邹东波,等.莱州湾地区郯庐断裂带的构造特征及其新生代演化[J].海洋地质与第四纪地质,2006,26(6):101-110.
[4]衣学磊,侯贵廷.济阳坳陷中、新生代断裂活动强度研究[J].北京大学学报:自然科学版,2002,38(4):504-509.
[5]叶兴树,王伟锋,陈世悦,等.东营凹陷断裂活动特征及其对沉积的控制作用[J].西安石油大学学报:自然科学版,2006,21(5):29-33.
[6]漆家福,杨桥,童亨茂,等.构造因素对半地堑盆地层序充填的影响[J].地球科学——中国地质大学学报,1997,22(6):603-608.
[7]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.
[8]肖焕钦,王宝言,陈宝宁,等.济阳坳陷陡坡带断裂控砂模式[J].油气地质与采收率,2002,9(5):20-22.
[9]郑德顺,吴智平,李凌,等.惠民凹陷中生代和新生代断层发育特征及其对沉积的控制作用[J].石油大学学报:自然科学版,2004,28(5):6-12.
[10]罗群,杨竞,魏分粮.柴北缘地区断裂控藏综合模式[J].油气地质与采收率,2009,16(2):1-3.
[11]和政军,宋天锐,丁孝忠,等.燕山中元古代裂谷早期同沉积断裂活动及其对事件沉积的影响[J].古地理学报,2000,2(3):83-91.
[12]彭存仓.沾化凹陷断层活动性及其叠合特征[J].油气地质与采收率,2009,16(5):37-39,43.
[13]肖军,王华,陆永潮,等.琼东南盆地构造坡折带特征及其对沉积的控制作用[J].海洋地质与第四纪地质,2003,23(3):55-63.
[14]万天丰,朱鸿.郯庐断裂带的最大左行走滑断距及其形成时期[J].高校地质学报,1996,2(1):14-27.
[15]陆克政,漆家福,戴俊生,等.渤海湾新生代含油气盆地构造模式[M].北京:地质出版社,1997.
[2]李春荣,辛仁臣,李建平,等.郯庐断裂对青东凹陷古近纪沉积体系的控制[J].新疆石油地质,2008,29(2):209-213.
[3]吴时国,余朝华,邹东波,等.莱州湾地区郯庐断裂带的构造特征及其新生代演化[J].海洋地质与第四纪地质,2006,26(6):101-110.
[4]衣学磊,侯贵廷.济阳坳陷中、新生代断裂活动强度研究[J].北京大学学报:自然科学版,2002,38(4):504-509.
[5]叶兴树,王伟锋,陈世悦,等.东营凹陷断裂活动特征及其对沉积的控制作用[J].西安石油大学学报:自然科学版,2006,21(5):29-33.
[6]漆家福,杨桥,童亨茂,等.构造因素对半地堑盆地层序充填的影响[J].地球科学——中国地质大学学报,1997,22(6):603-608.
[7]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.
[8]肖焕钦,王宝言,陈宝宁,等.济阳坳陷陡坡带断裂控砂模式[J].油气地质与采收率,2002,9(5):20-22.
[9]郑德顺,吴智平,李凌,等.惠民凹陷中生代和新生代断层发育特征及其对沉积的控制作用[J].石油大学学报:自然科学版,2004,28(5):6-12.
[10]罗群,杨竞,魏分粮.柴北缘地区断裂控藏综合模式[J].油气地质与采收率,2009,16(2):1-3.
[11]和政军,宋天锐,丁孝忠,等.燕山中元古代裂谷早期同沉积断裂活动及其对事件沉积的影响[J].古地理学报,2000,2(3):83-91.
[12]彭存仓.沾化凹陷断层活动性及其叠合特征[J].油气地质与采收率,2009,16(5):37-39,43.
[13]肖军,王华,陆永潮,等.琼东南盆地构造坡折带特征及其对沉积的控制作用[J].海洋地质与第四纪地质,2003,23(3):55-63.
[14]万天丰,朱鸿.郯庐断裂带的最大左行走滑断距及其形成时期[J].高校地质学报,1996,2(1):14-27.
[15]陆克政,漆家福,戴俊生,等.渤海湾新生代含油气盆地构造模式[M].北京:地质出版社,1997.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心