| 大巴山推覆构造特征的探讨 |
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| 引用本文： | 李占奎,丁燕云.大巴山推覆构造特征的探讨[J].物探与化探,2007,31(6):495-498. |
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| 作者姓名： | 李占奎 丁燕云 |
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| 作者单位： | 中国国土资源航空物探遥感中心,北京,100083 |
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| 摘 要： | 大巴山推覆构造位于秦岭造山带和四川盆地的过渡部位,由拉张盆地、推覆带、活动带、扰动带和主滑面组成.其中活动带与扰动带是油气聚集的有利地区.经重磁资料分析计算,指出推覆带推覆距离,并推测推覆带下可能存在四川盆地沉积地层,这对拓宽四川盆地油气资源勘查具有积极意义.
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| 关 键 词： | 推覆构造 重磁场 基底埋深 正演计算 |
| 文章编号： | 1000-8918(2007)06-0495-04 |
| 收稿时间： | 2007-09-01 |
| 修稿时间： | 2007年9月1日 |
A TENTATIVE DISCUSSION ON CHARACTERISTICS OF THE DABA MOUNTAIN NAPPE STRUCTURE |
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| LI Zhan-kui,DING Yan-yun.A TENTATIVE DISCUSSION ON CHARACTERISTICS OF THE DABA MOUNTAIN NAPPE STRUCTURE[J].Geophysical and Geochemical Exploration,2007,31(6):495-498. |
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| Authors: | LI Zhan-kui DING Yan-yun |
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| Institution: | China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China |
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| Abstract: | Located in the transitional position between Qinling Mountains and Sichuan Basin,the Daba Mountain nappe structure is composed of pull-apart basin,nappe zone,mobile belt,disturbed zone and main slide surface,with the mobile belt and the disturbed zone being favorable places for oil-gas accumulation.Based on computing and analyzing gravitational and magnetic data,the authors obtained the nappe distance of the nappe zone,and reached the conclusion that sedimentary strata of Sichuan basin may exist under the inferred nappe zone.The result is helpful to exploring oil-gas resources in Sichuan basin. |
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| Keywords: | nappe structure gravitational and magnetic field buried depth of basement forward computation |
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