Geological Geochemistry And Genetic Analysis From The Huaishuping Gold Deposit In Songxian,Henan

This thesis is based on detailed field geological survey,appling the correlated theories of structural geology,petrology,geochemistry and geochronology to research the Huaishuping gold deposit in Songxian,and reliminarily reveals the tectonic setting and genetic mechanism of the deposit.The tectonic setting and tectonic evolution process of the Huaishuping gold deposits are determined by the existing research data.It is clear that the gold ore bodies are mainly controlled by the NNE steep fault zone and the interformational fracture zone of the Xiong'er Group andesite,the characteristics of the structure control ore bodies are significant.According to the principles of basic geology,petrography and geochemistry,the characteristics of mineralization in this region are analyzed,the alteration zones and the main mineralization marks of the ore bodies in the steep dip fracture structure are determined;and also the relationships between different alteration zones and mineralization are clarified.Based on the Rb-Sr isotopic dating method,the quartz inclusions in the Huai shuping gold deposit were tested and analyzed.In addition to individual samples,the correlation between the sample points is better,Each group of data has a significant span,isochronal fit is higher,the age of 163 Ma + 3Ma ~ 173 Ma + 60 Ma was obtained by the isotopic age data,it shows that the metallogenic epoch is the early Yanshan period.The correlation analysis and R cluster analysis of the trace elements in the Huaishuping gold deposit were carried out by using SPSS,it shows that the enrichment of Au in the deposit is related to Cs,Ni,Co,Cr,and their relationship is more significant,it also shows that the enrichment of Au is closely related to the hydrothermal sulfide of medium high temperature elements.The comprehensive study shows that the deposit is a series of metasomatic alteration types gold deposits formed by homologous magma fluids or hydrothermal metasomatism in different parts of rocks,and its metallogenic epoch should be basically identical or close to the diagenetic epoch.