Characteristics of Ore-Bearing Mineral and Its Genesis Significance of Taibai Gold Deposit

According to electron probe analysis of 12 samples, As, Se, Ni, Au, Pt were detected as trace element in pyrite. Pt content is negahve correlated with Au+Ag content The native gold is closely associated with pyrite from stage 2 and stage 4. It occurs is the, fissure filling or on the crystal boundary of pyrite.The finess of gold is falling from 1290 level to 1350 level, which indicated that the ore-forming temperature is from high (downside) to low (upside). Pt content is negahve cormlated with the finess of gold. High Pt and Te content indicated that the ore forming of this deposit is related with abyssal magmatism. Pt content of pyrite is not only genesis significance but also of significance of explorahon.