%0 Journal Article
%T A study on FEM modeling of anomalies of 3-D high-density E-SCAN resistivity survey<br>三维高密度电阻率ESCAN法有限元模拟异常特征研究
%A HUANG Jun-Ge
%A WANG Jia-Lin
%A RUAN Bai-Yao
%A <br>黄俊革
%A 王家林
%A 阮百尧
%J 地球物理学报
%D 2006
%I 
%X Geological bodies of small buried depths,small sizes,and complex distribution are often needed to be explored in engineering electric prospecting.Higher accuracy of detective methods is required.Using the(3-D) high-density resistivity method,which is one of the normal methods in engineering prospecting,we can get plenty of data and detect the bodies in many bearings.A study of anomaly features in 3-D high-density E-SCAN resistivity survey is done in this paper.Several classical models are designed and calculated using the finite element method to study their anomalous features.The results show that,the resolving power of E-SCAN on low resistivity bodies is stronger than on high resistivity bodies.It dispenses with setting power on all electrodes and can distinguish geologic body's electrical properties and positions.But it is difficult to identify the downward extention of geological bodies by the measurements.
%K Three dimension
%K High-density
%K Resistivity
%K E-SCAN
%K Apparent resistivity anomaly<br>三维
%K 高密度
%K 电阻率
%K E-SCAN法
%K 视电阻率异常
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=79DC603820FED8C5&yid=37904DC365DD7266&vid=2A3781E88AB1776F&iid=E158A972A605785F&sid=379827DA4720AA2A&eid=4BE5C218638B5C80&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=9&reference_num=25