Soil Geochemical Characteristics And Metallogenic Prognosis In Ganhe Area Of Hulunbeier District, Inner Mongolia

The study area is located in the northeastern part of Inner Mongolia Autonomous Region,in the Mongolian-Xing'an orogenic belt on the southeastern margin of the Siberian plate,on the west side of the Deerbugan deep fault,a precious metal and non-ferrous metal ore-concentrating area.The study area is located in the middle-south section of the metallogenic belt,and the ore-forming conditions are superior.Based on the results of the 1:200,000 area adjustment and water sediments in the collection area,this paper analyzes the 1:50,000 soil measurement data in the Ganhe area,combines geology and mineral resources,and encircles the favorable mineralization areas.Mineralization favorable area for mineralization prediction.The paper has the following understanding:(1)Through elemental geochemical background analysis,combined with geological background and other metallogenic information analysis,the main ore-forming elements in this study area are Ag,Pb,Zn,Mo,and the main metallogenic horizon is Manketouebo Group rhyolite,Tamulangou group Anshan tuff.(2)The distribution of element geochemistry field in the study area is mainly characterized by “slice and belt”.Abnormally significant segments,showing that some of the elements are high-value anomalies,while others have a low background distribution.In the ore-forming geological body,structural complex area,intrusion and surrounding rock,the contact zone between the inner and outer parts of the rock formation forms an abnormally high value area or a high background area.(3)Through the comprehensive analysis and comparative study of the existing geological mineral resources and the 1:50,000 soil geochemical measurement results in this area,the preliminary summary of the enrichment,evolution and distribution of minerals in the work area is carried out,and the prospecting area of mineralization is delineated.4 locations,9 prospecting targets.(4)Looking at the ore-forming geological background,output location,spatial and temporal distribution of various minerals in the region,and forecasting the ore-forming,considering that the Ganhe area is in the Upper Jurassic Manketou Ebo Formation and the quartz syenite porphyry Near the contact zone of the intrusion,it provides a strong basis for the search for metallogenic structures and concealed rock masses,and has great potential for mineralization.The tectonic activities in the Ganhe area are complex,and the ore-forming elements are activated and enriched,with the potential of hydrothermal lead-zinc-silver ore mineralization.