Two kinds of ore and their genesis in Fozichong lead-zinc orefield,Guangxi

Two kinds of ore have been identified in Fozichong orefield. The first ore type emerges in bedded orebodies.The ore's mineral component is simple,leucoratic sphalerite and diopsite are the guide minerals of the ore. Typical syngenetic sedimentary structure, which is called as hot-water sedimentary ore. The which have stable thickness and its main association of minerals are leucocratic sphalerite-galenite-diopsite (epidot, chlorite). There are laminated structure,soft sedimentary-slipping deformed structure, syngenetic brecciated structure in the ore which are the mirror of syngenetic sedimentation. The other type of ore has the charactristic of epigenetic mineralization,which is called as telescoped ore. The ore occurs in vein, pocket, lensoid and beded. The ore minerals are mainly composed of marmatite, galenit, pyrrhotite(pyrite), chalcopyrite, or marmatite, galenite, pyrite and hedenbergite. Marmatite and hedenbergite are the indicated minerals of the ore. The main ore structure include massive?vein?drusy structure, etc. The second type ore penetrates last type ore in some areas. Therefore, two mineralizalion periods ore divided, which can be called as hot-water sedimention period and telescoping period.