| The research topic of this paper is from the Sino-Burmese cooperation project "Geological Survey and Evaluation of Jingmian Gold Mine in Myanmar's Fourth Special Zone",which is taught by Professor He Mingyou.In this study,we try to explore the geochemical characteristics of gold and its closely related elements enrichment and delineation.And provide data support and scientific basis for the qualitative assessment of prospecting potential and prospecting potential.Therefore,the topic selection has important scientific research significance and practical application value.In this paper,the gold mining area is selected as the research object,and the research task of the project is closely integrated,and the elemental geochemical characteristics of the gold mining area are studied emphatically.The data were collected by 1: 5000 soil geochemical method and rock measurement geochemical method respectively.The data were obtained by X-ray fluorescence spectrometry and atomic absorption spectrometry.Data were processed by SPSS and SUFER software,and the correlation analysis was carried out.Delineation of elemental anomalies,delineation of the target area.The research contents include: regional geological background,geological structure of deposit,metallogenic geological conditions,prospecting prediction.Through the above study,the following understanding:1.Soil geochemical measurement can be used as an important and effective prospecting method in this area.Soil geochemical measurement method can be used to rapidly reduce the prospecting target area and provide more direct and reliable prospecting information for geological prospecting;2.The results of the factor analysis show that the contribution rate of factor 1(Ti,Ba,Co,Fe,Ni,Cr(Mn,Mo,Zr))is 46.346%,which represents magma information,especially the migration of iron elements.The contribution rate of factor 2(As,Pb,Bi,Hg)is 20.372%,which represents information such as medium and low temperature hydrothermal,and may also be expressed as fault information.Factor 3(Sb,Sn,Cd)contribution rate of 10.388%,representing tin and other polymetallic mineralization information(also may be rich Sn granite information).The contribution rate of factor 4(W,Zn,Cu(Ca))is 6.428%,which represents the polymetallic mineralization information such as W,Zn and Cu,and undergoes calcification geology.The best indicator elements of gold geochemistry in this area are As,Pb,Bi and Hg,Ti,Ba,Co,Fe,Ni,Cr and Mn indicate that the ore body is of little significance;3.Through sufer software to deal with the measured data of soil have been the single element anomalies and the synthesis anomaly map can be found three anomaly,the anomaly field strength is stronger,bigger,as the most promising area,should be as a key exploration area,and select the three most promising prospecting target areas.4.Rock measurements show that Au and Ag are the highest in silicified rocks,and as the indicator element of gold,As is also the highest in silicified rocks,The results of factor analysis show that the correlation between Au-As-Bi,Ag-Bi-Zn and Cu-Sb-Pb-Bi is very good.The results of the innovations are as follows:For the first time,the soil survey and rock measurement method were used to carry out prospecting geological prospecting in Jingmian gold mining area,and three main prospecting targets were delineated according to the elemental anomaly.In the soil measurement analysis,gold coexisting element As,Hg,Bi,Pb element combination is used as the gold prospecting indicator element to delineate the prospecting target. |
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