geochemical profile
1.This region is demonstrated as a geochemical region with high fluorine through studies on the fluorine contents of soils,magmatic rocks and the Archean?Cenozoic strata geochemical profile.
2.The geochemical characteristics of longitudinal profile show that the iso contents shapes of Au,Ag,Cu,Pb,Zn,As,Sb,W are “U” type, and the contents become lower from upper lever to lower, and like as “rear halo”.
3.GEOCHEMICAL CHARACTERISTICS OF TRACE ELEMENTS IN LATERITIC REGOLITH PROFILE OF GRANODIORITE IN ANTOUM AREA,LAO PDR
4.At last, according to statistical principle , and combined with geochemical characteristics and the condition of production at large scale of soil down profile, it is pointed out that the reasonable depth of soil sampling in I environment is - 150 - - 180cm in this region.
5.The 14C age dating method was applied to study the deposited age of the Jiangbei conglomerate in Youxi profile,Jiangjin. The geochemical characteristics of oxides such as MgO,CaO,Fe2O3,FeO,Fe2O3/FeO were analyzed.

