ABSTRACT
To explore the genesis of Qian'echong molybdenum deposit in Xinyang, the mineralogical analysis of metal sulfide was carried out by using electron microprobe data, and the regional geological background and deposit characteristics were connected to provide indicative significance for the genesis of Qian'echong molybdenum deposit. The results show that the ore-forming stage of the deposit can be divided into six stages. The electron microprobe data of pyrite show that the S content of pyrite in quartz-potash feldspar stage is 53.51%, the Fe content is 46.44%, and the Co/Ni ratio ranges from 0.18 to 0.82, showing the characteristics of sedimentary pyrite. The pyrite in molybdenite-quartz stage contains 53.21% S, 46.58% Fe, and the Co/Ni ratio ranges from 1.01 to 5.68, showing the characteristics of magmatic-hydrothermal pyrite. Combined with the basic geological characteristics, it is considered that Qian'echong molybdenum deposit is a typical porphyry deposit.
