音频大地电磁测深法在老挝万象盆地钾镁盐矿产勘探中的运用效果

朱自串, 周丹, 李德文, 余润龙

The application of natural field audio magnetotellurics sounding to the exploration of the Vientiane basin potassium salt deposit in Laos

Zi-Chuan ZHU, Dan ZHOU, De-Wen LI, Run-Long YU

图1 万象盆地构造纲要图(摘自老挝万象钾盐地质)[4] 1—中二叠统;2—中下、中侏罗统;3—下白垩统;4—塔贡组;5——班塔博组;6—白垩纪二长花岗斑岩;7—角度不整合界线;8—平行不整合界线;9—整合界线;10—性质不明断层;11—平移断层;12—隐伏断层;13—背斜及编号;14—向斜及编号

Fig.1 Geologic structure of Vientiane basin 1—middle Permian; 2—middle-lower Jurassic; 3—lower Cretaceous; 4—tagong formation; 5—bantabo formation; 6—Cretaceous monzonite granite-porphyry; 7—angular unconformity; 8—parallel unconformity; 9—conformity boundary; 10—fault of unknown property ; 11—nucleation fault; 12—concealed fault; 13—anticline and their numbers; 14—syncline and their numbers