重磁电勘探简介

1、Fmm,dmrrrrrr,rrr61dmdmrrrdmrrrdmrrrdmdmFrdmFFdmFdmrrgrdmggdmgdmrrmamgV，A，VVVVVVVVVVV(c)水平层状介质的重力异常(d)介质横向密度变化的重力异常6261密度，gcm密度，gcm1.11.32.53.71.82.82.43.02.33.02.73.02.12.22.42.92.63.22.62.92.62.92.52.82.93.12.73.22.93.34.95.34.95.24.95.24.54.64.34.6mgllllmgllmVgmVgVglllVlVgllmVllVVVglVlVV63MKMglKMg

2、lKVggg65KVgVgVg,Vg,gKiiV67V6869KVgiVgVViiiiiVgiVgiViViiigKi610r，rdgdmrVgdmrrrr,dmddd,dddddVgVgmhdmn,dmdnhhmmmmVgMmmmmm611VggVgVgVgdgdddVVgV/kmVVV,dVgdmr，则rVVgrr613r,dddVgVgddd614VgPMrVgPVVVVVVVVVBBVVVV615VgVgVgVgMMM616,)，如图616（b）所示，则dmddVgdmdmrrrllldVgVV图6VVgVVVgPVgVgVg,gdmrrVgVgdddVgVgVVVVV619VgVgV

3、ghVVVVVVVVVVVVVVVVVVVVVVVVVgVgVgVVVVVVVVVVVVVVVVVVVVVVi局i区i纬i布i局i区i纬Vi布VVVVVVVVVi局i区i纬i布i布i布Vbhii布bVhVhiiVhiigbiigiigbiigibhigbhhniiiigghbhiiiiiggniniiiibgggggggg621622g623624625626627629mmmm0mmN/mmmPmLM630631MMJMJJJJJJFrJJJJ632JJrJJiJJJiJiJJJJi624258331513002036007037003051804802800025850100100I,I,

4、它们之间的关系是VV634Vrrpmmrrmmrrrrl,rrBr,rrBlupmrrmrrlMrr635636MrZ、垂直MMMVVVVVVVVVVnininnnii638639640VV641642643645644mr646m647mhm649JidmrdmVbrrriidd650dJdJbbbdJbbJbbbbb,VVVVbh，将b653654655656657L63I2645）中的用I659IMMMMINIVIMNjrM661rrMIrMrMjjrMjjjjjjjjjjjjjjjjjjBjLLjjLLj/jL/jhjjhjh662j/jEjEj663A，BMNMNIVVIMNKKVM

5、NIKIKKVIKMNEMNLMNjMNMNLMNKMNKIIIjLjLMNMNMNKMNKLMNMNjIKjKMNLKLMNMNMNjMNIIMNMNKjMNjMNM，NjMNjjKjMNjMNhh，如图/hKKKKKK665KIMMIKIKKAMK/KK/式(662)/KK/KKK现在来分析一下曲线的基本特征：当/KK/K/KKKK/KKKh/K/Khbh二层及以下各层顶面深度为hnn667bbKKbKhh/jMNKjMNK/K/(hhKKKAK/KAK669KAh/KhKKAhKKhKK670671KKhhhh/hh/hKKKAKKKKKAAKHHKAKKKhKKhniiKHKK/KKKKKKKNKNNNKKKKKKK/mKKm=10KKK/KEjijij,F/m/m,EEEEEejejeeejEEejejeEeejemeejEkmEEEiEE/mEE,L,nEKEnKnEeKeKEEiEiieKKni