| 青藏高原西部重力异常剖面拟合及其地质解释 |
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| 引用本文： | 田黔宁,耿涛,杨汇群.青藏高原西部重力异常剖面拟合及其地质解释[J].地质通报,2008,27(12). |
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| 作者姓名： | 田黔宁 耿涛 杨汇群 |
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| 作者单位： | 1. 中国地质调查局发展研究中心,北京,100037
2. 中国地质调查局西安地质调查中心,西安,710054 |
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| 基金项目： | 中国地质调查局《青藏高原狮泉河—康西瓦地区1:100万区域重力调查》项目(编号：XQ2004—04) |
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| 摘 要： | 在青藏高原西部地区沿东经80°和83°选择了2条剖面，在地质资料、物性资料和布格重力异常、航磁异常研究的基础上,结合深部地球物理, 建立了剖面的地质-地球物理模型。通过重力联合人机交互正演模拟,求解地下地质体的模型，并依此对剖面通过地段的地壳结构、断裂带深部特征和构造单元的深部格架进行了解释推断。
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| 关 键 词： | 青藏高原西部 地球物理场 重力异常拟合 地质解释 |
The Gravity Anomalies Forward Fitting and Geolog ical Explanation in the Western Area of the Qinghai -Tibet Plateau |
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| TIAN Qian-ning,GEN Tao,YANG Hui-qun.The Gravity Anomalies Forward Fitting and Geolog ical Explanation in the Western Area of the Qinghai -Tibet Plateau[J].Geologcal Bulletin OF China,2008,27(12). |
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| Authors: | TIAN Qian-ning GEN Tao YANG Hui-qun |
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| Institution: | Development & Research Center, China Geological Survey |
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| Abstract: | We choose two sections along longitude 80°and 83°east in the western Tibet plateau. Based on geological data and physical data as well as Bouguer gravity and air-borne magnetic anomaly, combined with information about some deep-seated geophysical data, geology-geophysical models for both sections have been achieved, and has conducted the gravity and magnetic man-machine forward modeling in the area. The purpose of this study is to formulate the models of underground geological bodies. According to the models, some interpretations and inferences of the crustal structure, deep features of fault zones and the deep-seated framework of the major tectonic units have been made from the places where the profile passes through. |
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| Keywords: | The Western Area of the Qinghai -Tibet Plateau geophysical field the gravity anomalies forward fitting geological explanation |
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