Ore‐forming fluid characteristics and ore‐forming materials source of the Tudimiaogou – Yindongshan lead‐zinc polymetallic orefield, west Henan

The Tudimiaogou-Yindongshan lead-zinc polymetallic orefield is located in the Tudimiaogou-Weimoshi lead and zinc silver polymetallic metallogenic belt. The belt is an important part of southwestern Henan lead and zinc silver polymetallic metallogenic province, of which molybdenum, gold resources play an important role in China. Frequent magmatic activity and widespread structure in the area provide favourable metallogenic conditions(Fu, 2012; Zhang, et al, 2015). Based on the study on the geochemical characteristics of the orefield and the macroscopic geological survey, this paper discusses the characteristics of the ore-forming fluid and the ore-forming material source, and analyze the genesis of the orefield. This work is to make contributions to enriching the metallogenic theory of southwestern Henan. *