石油与天然气地质 ›› 2008, Vol. 29 ›› Issue (3): 303-311,302.doi: 10.11743/ogg20080304

• 含油气盆地 • 上一篇    下一篇

酒西盆地早白垩世沉积特征及原型盆地恢复

王晓丰1,2, 张志诚1, 郭召杰1, 张臣1, 龚建业1   

  1. 1. 北京大学, 地球与空间科学学院"造山带与地壳演化"教育部重点实验室, 北京, 100871;
    2. 中国石油天然气股份有限公司, 塔里木油田分公司, 勘探事业部, 新疆, 库尔勒, 842000
  • 收稿日期:2008-01-05 出版日期:2008-06-24 发布日期:2012-01-16
  • 基金项目:

    国家自然科学基金项目(40272085);国家重点基础研究发展规划(973)项目(2001CB409804).

Sedimentary characteristics of the Lower Cretaceous and reconstruction of the prototype basin in the Jiuxi Basin

Wang Xiaofeng1,2, Zhang Zhicheng1, Guo Zhaojie1, Zhang Cheng1, Gong Jianye1   

  1. 1. Key Laboratory of Orogenic Belts and Crustal Evolution in Education Ministry, School of Earth and Space Sciences, Peking University, Beijing 100871, China;
    2. Exploration Department, Tarim Oilfeild Company, PetroChina, Korla, Xinjiang 841000, China
  • Received:2008-01-05 Online:2008-06-24 Published:2012-01-16

摘要:

通过对盆地下白垩统各组古流向、砾岩砾石成分等沉积特征的综合分析,结合玉门油田地震、测井、钻井资料,证明早白垩世赤金峡山、黑山并未隆起成山;宽滩山凸起(宽滩山为其一部分)只在下沟组沉积早期露出水面遭受剥蚀。由于规模较小,且呈长轴状沿北东-南西向展布,不足以隔断酒西地区(现今酒西盆地所涵盖的区域)同花海凹陷的联系。酒西盆地早白垩世为一受北西-南东向伸展作用控制的断陷盆地。盆地演化经历了断陷初始阶段、断陷扩展阶段及盆地萎缩消亡阶段,分别对应于下白垩统赤金堡组、下沟组和中沟组沉积时期。

关键词: 沉积特征, 古流向, 早白垩世, 酒西盆地

Abstract:

An integrated analysis of depositional characteristics such as paleocurrents and gravel composition of the Lower Cretaceous strata in the Jiuxi Basin,combined with the seismic,logging,and drilling data of Yumen oilfield,proves that Chijinxia mountain and Hei mountain didn't exist in the Early Cretaceous,and the Kuantanshan low uplift(with Kuantan mountain as a part of it) did not separate Jiuxi Basin from Huahai sag due to its small scale and NE-SW-trending long axis.The researches shows that Jiuxi Basin was a rifted basin controlled mainly by NW-SE extension in the early Cretaceous.The basin experienced three stages during its evolution: initiation,growth and die-out,which correspond to the deposition periods of Chijinbao,Xiagou,and Zhonggou formations respectively.

Key words: sedimentary characteristic, paleocurrent, Early Cretaceous, Jiuxi Basin

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