2.5-D CSAMT modeling with the finite element method over 2-D complex earth media

	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/132A11/79424]
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.