Geochemical Exploration Methods In The Hidden Mineral Prediction In Southwest Part Of Henan Province

? The southwest region of Henan province is located in Pal-Asian metallogenic domain, as well as the overlay of Mount.Qin Ling-Qi Linshan-Kun Lunshan metallogenic domain and that in the western coast of the Pacific Ocean. Its geographic features faciliate the exhalative volcanic formed by specific sedimentary, mineralization formed by sedimentary exhalative deposits and volcanic mineralization brought about by multi-stage magmatic activites, as well as the mineralization occured along with the metamorphism of the orogeny. All of these make this area become a region with favorable geological conditions and rich mineral resources, particularly the molybdenum lead-zinc polymetallic mineral resources.Therefore, it is of great significance to explore and apply new geochemistry approaches and technologies to search for hidden mine directed the deep part of this area. The application of geochemical survey on rock fracture in Moutong Lushi region, CO2 gas measurement, Rn gas measurement, soil mercury pyroelectric measurement and measurement of dynamic metals are the exploration practice carried out in this field.For the geochemical survey of rock fracture, the main samples are the filling fissures with fractured construction and rock films. Rock fracture is a mian channel for the hydrothermal activities, by which hydrothermal fluid can flows to a greater distance through rock fracture and the primary halo of the filling can detect the information about mineralization in the depth of this area.CO2 gas measurement, Rn gas measurement and soil mercury pyroelectric measurement are carried out visa gas- dispersion halo, which are applied to penetrated the overburden into the soil through the principal airway structure such as the fractures with faulted structure and ore-controlling structure. These measurement approaches make it more easy to detect the mineralization-related elements.Measurement of dynamic metals is based on the fact that a number of hidden In the region of Lushi Mouton, by the analysis of the zoning-halo model of the primary halo element, it is inferred that there occures Mo polymetallic mineralization on the hidden ore bodies in Muqugou, and there exists hidden ore bodies extending to the north and east in the middle of the three testing lines in Shimengou, and there has a molybdenum - copper-polymetallic mineralization zone in the southern tip of the Z3, where in the depth, there has great metallogenic potential for magmatic - hydrothermal-type molybdenum - copper.In the area of Zhangcun in Shanxian province, a combination of various measurement methods used in Fufaling and Taiyangpo shows that there found an anomalies of Au, Ag, Sb in the measurement of dynamic metals . And there has great anomalies between Ag and Sb, which is a typical combination of Au mineral elements. Zhangcun area has good potential for gold prospecting.