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银川盆地不同构造层构造样式及形成演化分析 被引量:19

Analysis of structural style and tectonic evolution in Yinchuan Basin
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摘要 为研究银川盆地构造样式及形成演化,以地震资料的精细解析为基础,分析构造样式类型和发育特征,并结合区域地质背景从断裂控盆方面分析其演化过程.结果表明:银川盆地经历中生代挤压隆升剥蚀和新生代伸展断陷2个主要演化阶段,共发育4类构造样式,其中新生界构造层以伸展和伸展—走滑构造样式为主,基底构造层以挤压和反转构造样式为主.该研究结果对明确银川盆地地质结构及油气勘探具有指导意义. Based on accurate interpretation of seismic lines,the types and development characteristics of structural style is researched systematically in Yinchan Basin.Combined with previous research,the formation mechanism of structural style is analyzed from geodynamics setting and other aspects.Study shows that four types of structural styles developed in Yinchuan Basin.Cenozoic structural layers mainly present extension and extension-strike-slip structural style and the basement structural layers mainly present extrusion and inversion structural style.The Yinchuan Basin experienced two period of tectonic evolution:the extrusion,uplift and denudation of Mesozoic and extensional faulted-depression of Cenozoic.The results have guiding significance to the analysis of geological structure of Yinchuan Basin and the next oil and gas exploration in this area.
出处 《东北石油大学学报》 CAS 北大核心 2012年第6期28-33,7,共6页 Journal of Northeast Petroleum University
基金 胜利油田重点科技攻关项目(YKK1009)
关键词 构造样式 构造演化 伸展 挤压 走滑 新生界 银川盆地 structural mode tectonic evolution extension extrusion strike-slip Cenozoic Yinchuan Basin
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