Experimental examinations and analyses have been made of the sediments from drill holes in the Zhuhai area, Guangdong Province. The studies show that there occ
Paleosols buried by colluvial deposits and artificial agricultural terraces wereinvestigated to reconstruct natural and man-induced environmental change in the
1 Geological features of fine disseminated gold deposits THE fine disseminated gold deposits occur mainly in the Indochina and Variscan fold belts along periphe