The research on the ore fabric of the main copper-iron deposits in the Tongling district indicates that there are sedimentary-diagenetic, thermal metamorphic and metasomatic ore fabric in this district.

In this paper,Changba-Lijiagou lead-zinc deposit has been taken as an example to study the characteristics of ore fabric,the influences of regional metamorphism to textures and structures of rock and minerals,and the texture and structure differences of ores from different type deposits.

Study of geological features and ore composition of kaolinitic rock in coal measures of the Permian Liangshan Formation in the Renheping syncline, western Hubei, indicates that the kaolinitic rock deposit is of clastic sedimentary type and dominated by hard kaolinitic rock, with a persistent ore horizon.

Through researching the regional and geological background and the ore structure of Lagaluo iron deposit, this paper describes the geological characteristics of Lagaluo iron deposit, and expounds the origin of deposit.

We find out the chemistry compositions,mineral compositions,ore structure,dissemination characteristics and particle size distributions of the target minerals and the liberations of the grinding products,and the analysis concerning with the factors affecting the performance of the ore dressing is done.