2.5-D CSAMT modeling with the finite element method over 2-D complex earth media | |
Di, QY; Unsworth, M; Wang, MY | |
刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION |
2004-07-01 | |
卷号 | 47期号:4页码:723-730 |
关键词 | complex earth media 2.5-D CSAMT finite element method numerical modeling |
ISSN号 | 0001-5733 |
文献子类 | Article |
英文摘要 | This paper discusses deeply the characteristics of EM field for 2-D complex earth media. We introduce the characteristics of electric field, magnetic filed and apparent resistivity, and phase produced by a finite electrical dipole source over 100Omegam homogeneous half-space media. From this result we know the field change behavior over the distance from the transmitter to the receiver, and that we should use a proper transmitting-receiving mode. In wave number domain, the EM field shows that the field of low wave number contributes much more than that of high wave number. And then we demonstrate the CSAMT forward modeling apparent resistivity, phase pseudosetions and frequency curves for two-anomaly bodies, two-lean-anomaly bodies and down faulted anomaly. Numerical modeling results show directly the anomaly characteristics. This is very helpful for recognizing field data and data inversion and interpretation. |
WOS关键词 | SPRINGS THERMAL AREA ; VALLES-CALDERA ; NEW-MEXICO ; EXPLORATION ; USA |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
出版者 | SCIENCE CHINA PRESS |
WOS记录号 | WOS:000222988300026 |
内容类型 | 期刊论文 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/79423] |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Di, QY |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada |
推荐引用方式 GB/T 7714 | Di, QY,Unsworth, M,Wang, MY. 2.5-D CSAMT modeling with the finite element method over 2-D complex earth media[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2004,47(4):723-730. |
APA | Di, QY,Unsworth, M,&Wang, MY.(2004).2.5-D CSAMT modeling with the finite element method over 2-D complex earth media.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,47(4),723-730. |
MLA | Di, QY,et al."2.5-D CSAMT modeling with the finite element method over 2-D complex earth media".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 47.4(2004):723-730. |
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