摘要
以山脊、山谷地形为例,通过点源二维有限元数值模拟给出了起伏地形条件下近矿围岩充电法一次电场和激发极化二次电场的剖面曲线,研究了地形对电场的影响,总结了起伏地形情况下的异常分布规律,并用比值法对其进行了地形校正,校正后的结果表明效果是比较好的。
Exemplified by ridge and valley topography and based on two dimensional finite element numerical simulation,this paper has given profile curves of primary electric field of near ore wallrock “mise a la masse” method and IP secondary electric field under the condition of rolling topography,studied the influence of topography upon the electric field,summarized distribution regularity of anomalies under the condition of rolling topography and,using radio method,made topographic correction.The results of the correction show that the effect is fairly satisfactory.
出处
《物探与化探》
CAS
CSCD
1999年第3期202-210,共9页
Geophysical and Geochemical Exploration
关键词
近矿围岩充电法
起伏地形
电位
比值法
数值模拟
near ore wallrock 'mise a la masse' method
correction of rolling topography