多频复合波激电差分相位频率简谱异常区分法

来源期刊：中南大学学报(自然科学版)1998年第2期

论文作者：张友山

文章页码：1 - 4

关键词：异常;频谱激电法;差分相位

Key words：anomaly; induced polarization; differential phase

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.

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.