| 兰州-天水地区三维重力反演及其地质解释 |
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| 引用本文： | 李渭娟,梁桂培,姚政生.兰州-天水地区三维重力反演及其地质解释[J].西北地震学报,1993,15(4):45-51. |
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| 作者姓名： | 李渭娟 梁桂培 姚政生 |
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| 作者单位： | 国家地震局兰州地震研究所,国家地震局兰州地震研究所,国家地震局兰州地震研究所 |
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| 摘 要： | 本文利用重力资料对兰州－天水地区的深部构造进行了研究。在计算中，采用Ｐａｒｋｅｒ－Ｏｌｄｅｎｂａｒｇ三维位场反演方法，反演前对重力资料进行了地形改和中新生低沉积层校正。根据反演结构，综合反演结果，综合分析了有关资料，认为该区为青藏块体过渡带，并且并且提出了陇中盆地为断块型构造盆地的新认识。
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| 关 键 词： | 三维重力反演 深部构造 兰州地区 |
| 收稿时间： | 1993/3/4 0:00:00 |
THREE-DIMENSION INVERSION OF GRAVITATIONAL FIELD AND GEOIOGICAL EXPLANATION IN LANZHOU-TIANSHUI REGION |
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| Li Weijuan,Liang Guipei and Yao Zhengsheng.THREE-DIMENSION INVERSION OF GRAVITATIONAL FIELD AND GEOIOGICAL EXPLANATION IN LANZHOU-TIANSHUI REGION[J].Northwestern Seismological Journal,1993,15(4):45-51. |
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| Authors: | Li Weijuan Liang Guipei and Yao Zhengsheng |
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| Institution: | Earthquake Research Institute of Lanzhou, SSB, China,Earthquake Research Institute of Lanzhou, SSB, China and Earthquake Research Institute of Lanzhou, SSB, China |
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| Abstract: | Based on the result of deep seismic sounding and gravitational data, after makingtopographic correction for gravitational data and Mesozoic-Cenozoic deposition corrections, the deep structure of Lanzhou-Tianshui region. (E103°-107°, N33.5°-37°) was studied by using Parker-Oldenburg''s 3-D inversion method of gravitational field. By synthesizing and analysing the geophysical and geological data of the region, it is pointed out that the region is a transitional belt of Qinghai-Xizang block, moreover, we think that that Longzhong basin is a fault block''s structure one. |
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| Keywords: | Three-Dimension Inversion of Gravitational Field Lanzhou-Tianshui Area Deep Structure |
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