摘要
用电测深研究地电断面、寻找隐伏多金属矿体时，以往采用ρ＿ｓ（或η＿ｓ）等值线断面图进行地质推断解释，因受浅源信号的干扰，效果差。本文提出了采用ρ＿ｓ（或η＿ｓ）差值法，能排除浅源干扰信号，反映出地电断面的相对变化，突出了深部微弱信息，取得了较好的地质解释效果。
Studying the geo-electrlcal profile by method of clectrical depth-measurement to search the hid-den polymetallic deposits,it used to give deductively the geological explanation with ρ_s(or η_s)value contour pro-files.But it has not had good result because of the disturbance df signals from shallower sources.Instead,this pa-per suggests the ρ_s(or η_s)difference-value method which can exclude such disturbance and can reflect the rela-tive variation of geo-electrlc profiles.Thus the method may reveal greatly the weak informatlon of deep part of the earth and make it possible to obtain excellent result in the geologic exploration.
出处
《湖南地质》
1994年第1期37-40,共4页
Hunan Geology
关键词
差值法
电测深
地质解释效果
difference-value method,electric depth-measurement,effect of geologic explanation
