Abstract:

The Kangguer gold deposit is controlled by brittle ductile shear zone in Eastern Tianshan, Xinjiang. Based on genetic mineralogy theory, the pyrite which is main mineral loaded gold has been studied systematically on the typomorphic characteristics by the mineralogy and mineral geochemistry methods. The results revealed that thermoelectric properties of pyrites are mainly of the N type,N-P type and P-N type.From the top of the orebody to the bottom (1,000 m→400 m), P-type thermoelectric coefficient occurrence rate shows a marked decline (37.04%→9%).The calculations of pyrite thermoelectric coefficient indicate that the temperature of the deposit is about 75.43-382.79 ℃,with most values in the range of 80-340 ℃. By analysing the contour vertical projections of gold grade and occurrence rate of P-type pyrite in the L_2-2 east mine section of Kangguer gold deposit, it can be inferred that there is good exploring prospect below 400 m elevation of line 22, also in the west of line 22. By studying contour vertical projection of trace elements assemblies (As+Sb+Se+Te，Cu+Pb+Zn and Co+Ti+Ni+Cr) in pyrites, it suggests that great prospecting exists under 400 m elevation of the exploration line 22 and 14. All the typomorphic characteristics of the pyrite mentioned above are very significant for deep gold prospecting in Kangguer gold deposit.

Key words: thermoelectricity, typomorphic characteristic, Kangguer gold deposit, Eastern Tianshan