石油学报 ›› 2009, Vol. 30 ›› Issue (4): 506-512.DOI: 10.7623/syxb200904005

• 地质勘探 • 上一篇    下一篇

伊通盆地新近纪以来的反转构造特征

唐大卿1,2, 何生1,2, 陈红汉1,2, 李楠3, 于连香3, 孙咏梅3   

  1. 1. 中国地质大学资源学院, 湖北武汉, 430074;
    2. 中国地质大学构造与油气资源教育部重点实验室, 湖北武汉, 430074;
    3. 中国石油吉林油田分公司勘探开发研究院, 吉林松原, 138000
  • 收稿日期:2008-09-25 修回日期:2008-12-22 出版日期:2009-07-25 发布日期:2010-05-21
  • 作者简介:唐大卿,男,1974年6月生,1998年毕业于中国地质大学(武汉)石油地质专业,现为中国地质大学(武汉)在读博士研究生,讲师,主要从事含油气盆地构造分析方向的教学与科研工作.E-mail:tangdqcug@sina.com
  • 基金资助:
    教育部科学技术重点项目(106113);湖北省自然科学基金项目(2007ABC013);中国石油重大科技攻关项目(040112-1)联合资助.

Characteristics of inversion structures in Yitong Basin since Neogene

TANG Daqing1,2, HE Sheng1,2, CHEN Honghan1,2, LI Nan3, YU Lianxiang3, SUN Yongmei3   

  1. 1. Faculty of Resources, China University of Geosciences, Wuhan 430074, China;
    2. Key Laboratory of Tectonics and Petroleum Resources of the Ministry of Education, China University of Geosciences, Wuhan 430074, China;
    3. Petroleum Exploration and Production Research Institute, PetroChina Jilin Oilfield Company, Songyuan 138000, China
  • Received:2008-09-25 Revised:2008-12-22 Online:2009-07-25 Published:2010-05-21

摘要: 郯庐断裂带于新近纪以来呈现强烈的挤压和逆冲活动,使伊通盆地相应地遭受了挤压而反转,盆地西北缘和东南缘地层被强烈抬升和剥蚀并形成逆冲断层、断褶带及断隆带等一系列反转构造。反转构造在盆地西北缘和东南缘具有显著差异性:在盆地西北缘形成宽2~4km的断褶带,该带可能是一个新的油气勘探领域,具备良好成藏条件,油气勘探重点应在褶皱带浅层和逆冲断层下盘;在盆地东南缘尖山和万昌等构造带则形成拱张性断隆带,对早期形成的油气藏起破坏作用,应该寻找深层和构造带斜坡部位的油气藏。反转构造的成因主要为太平洋板块向西俯冲产生的弧后扩张作用及印度洋板块向欧亚板块碰撞的远程挤压作用,还与盆缘刚性块体隆升及侧向挤压作用有关,盆缘刚性块体的分布位置及隆升强度对盆地反转构造的平面展布特征及反转强度具有重要影响。

关键词: 伊通盆地, 新近纪, 反转构造, 逆冲断层, 断褶带, 断隆带

Abstract: The Tan-Lu fault zone experienced intensive compression and thrust since Neogene.The Yitong Basin was also subjected to compression and inversion under the action of compression and thrust.The strata at the northwestern and southeastern edges were apparently uplifted and denudated.Many inversion structures such as thrust fault,faulted folds and faulted uplifts were developed.There is great difference between the inversion structures in the northwestern edge and southeastern edge.A fault-fold belt of 2~4 km in width formed at the northwestern edge.This belt has the good conditions for hydrocarbon accumulation and may be a new area for oil and gas exploration.The shallow level of faulted folds and the footwall of thrust faults are the important areas for hydrocarbon exploration.The inversion structures of the extensional faulted uplifts mainly formed in the Jianshan and Wanchang structural belts of the southeastern edge and could destruct the preexisting hydrocarbon pools.So,the deep level and the slope of structural belt such as Jianshan and Wanchang structures are the important area for hydrocarbon exploration in the southeastern edge.The thrusting activity of the Tan-Lu fault zone and the inversion structures of the Yitong Basin took place in the regional dynamic setting.The back-arc spreading caused by westward subduction of the Pacific plate and the extrusion from the Indian plate collision with eurasian plate also played a partial role in the east-western compression of East China.The distribution and uplift strength of the rigid plates in the basin edge played a great role on the distribution and inversion strength of inversion structures in Yitong Basin.

Key words: Yitong Basin, Neogene, inversion structure, thrust fault, fault-fold belt, fault-uplift belt

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