摘要
以改变地下电流密度分布状态的方法,造成地下某深度域电流密度达极大,使地质体处于最佳激发状态,提高地质体异常的信噪比,从而达到强化欲探测深度地质体异常的目的。研究、实验及勘查实践证明,不同勘探深度组成的地电断面图,能量化地给出地质一物性体的空间位置及产状,为复杂形体的定量解释及解释的自动化创造了条件。
his paper discusses the Depth-Controled Electrical Survey(DCES)which can retribute underground current density andmake it to be maximum at an imterested depth range. While a geological body surveyed is in optimum induced condition,the S/Nratio will be increased and the anomaly of the geological body enhanced.It is proved by theoretic deduction,model experimentsand field measu rements that geoelectric profiles at different depths can quantita tively show the position and occurence of the geo-logical body.This would be favourable to quantitative and automatic interpretation of sophisticated geological bodies
出处
《地质与勘探》
CAS
CSCD
北大核心
1994年第6期48-55,共8页
Geology and Exploration