The Rmoelectricity Property and Deep Metallogenic Forecast of Pyrite in Heilangou Gold Field of Jiaodong,Shandong Province

Heilangou gold field is located in the northern part of Qixia-Penglai gold metallogenic belt of Jiaodong,Shandong province.There are many quartz vein type of gold deposits as Heilangou, Hexi, Hougezhuang and Chugezhuang,etc.The gold mineralization mainly occurs in quartz veins containing pyrite and polymetallic sulfide. Pyrite is the main gold bearing mineral,therefore the prospecting based on the typomorphic characteristics of pyrite thermoelectricity is of practical significance.The thermoelectric properties of 46 pyriteswere measured by a new in-situ mineral thermoelectric instrument. The results show that the P-type ratios of pyrite are mostly above 90%,being in the elevation range of -170~-616m, indicating that the ore bodies exposed are at the top of the deposit.The thermoelectric coefficient is especiallyconcentrated in the range of 200~350 μV·℃^-1.The average value of the vertical extension index (30.4%) calculated by the thermoelectric coefficient indicates that the current exploration position is in the upper part of the deposit.It is held thatthere is still much metallogenic potential deep in Heilangou gold field.