Magnetic Interactive Visualized Inversion on Arbitrary Shaped Three-Dimensional Body
详细信息
- 责任者：Xi Yufei (Institute of Geophysics and Geomatics ; China University of Geosciences ; Wuhan 430074 ; China) ; Liu Tianyou
- 刊名：Journal of Jilin University
- 出版年：2011
- 卷期：41(1)
- 关键词：磁异常 ; magnetic anomaly ; 可视化技术 ; visualization technology
- 页码：p.252-257,276
- 图表：10 illus., 2 tables, 14 refs.
- 分类号：1600
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
Interactive inversion of arbitrary shaped three-dimensional body is used to explain complex magnetic body. This approach can be described as follow: the vertical line element method is used to calculate the geological magnetic anomalies, and the visualized technology was used to achieve human-computer interactive inversion. The accuracy affect factors were analyzed through theoretical model: when the number of split sections decrease from 17 to 3, the approximate calculation of the mean square error increased from 0.099 nT to 3.160 nT. This indicated that the deeper the center depth, the smaller approximate calculation error gets. Therefore how to divide magnetic body reasonably is the main aspect to improve inversion precision. This method is applied in estimating banded iron formation (BIF) of a deposit in Eyre Peninsula, South Australia.
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