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中南大学学报(自然科学版)

Journal of Central South University

第29卷    第2期    总第120期    1998年4月

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文章编号:(1998)02-1-4
多频复合波激电差分相位频率简谱异常区分法
张 友 山

(中南工业大学资源环境与建筑工程学院,长沙,410083)

摘 要: 研究了多频复合波激电差分相位频率简谱异常区分法的原理、技术及应用效果.采用该方法,可以有选择地快速观测一段激电频率简谱,同时获取多个差分相位参数.利用不同极化源(单个或多个)的差分相位曲线特征的相互关系和明显差异,可实时、直观、准确地区分矿异常、非矿异常.该方法还具有工作简便、高效、分辨力高等优点,具有很大的应用价值.

 

关键字: 异常;频谱激电法;差分相位

ANOMALY DISCRIMINATION OF SIMPLE SPECTRUM OF DIFFERENTIAL PHASE WITH MULTIFREQUENCY IP
Zhang Youshan

College of Resources,Environment and Civil Engineering,Central South University Technology, Changsha,410083,China

Abstract:The principle about anomaly discrimination of simple spectrum of differential phase with multifre quency induced polarization method is described and the promising prospecting results are obtained in several reconnaissance area in both northern and southern China.To measure a part of the spectrum, an acquisition system is designed perfectly with optional selecting multifrequency groups and has been used conveniently in prospecting to get many kinds of differential phases simultaneously.The anomalies associated with different kinds of subsurface polarization sources are the discrimination information which can be divided into interesting anomalies corresponding sulphide deposits,groundwater,etc;or non-essential anomalies corresponding carbonaceous strata,pyritization rock,etc.In addition,this method has the advantages of simplicity for anomalous discrimination,rapid survey,high resolution in the exploration geophysics.

 

Key words: anomaly; induced polarization; differential phase

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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