Study On Mineralization Regularity And Mineral Resource Assesment In Hami, Xinjiang

MinerogeneTic series of ore deposits is related to the research on the mineralizaTion rule in the four-dimensional space, the evoluTion of metallogenic Time, space and substance during the earth development and their distribuTion rule. MinerogeneTic series study can increase the cogniTion of global substance rule, effecTively guide the ore prospecTing, and speed the exploraTion of mineral resources.Hami area is the significant producing area of ferrous metal, nonferrous metal, noble metal and coal resources in Xinjiang, even in the whole China, and also one of the typical mulTi-cycle orogen belts. In Hami area, at present, there have been discovered more than 680 ore spots and ore deposits. Although there have certain fundamental geology and mineral exploraTion been done, the previous work emphasized parTicularly on some regions or some fundamental geological problems and weakened the syntheTic research on the regional metallogenic rule, so it influenced the long-range programming of mineral exploraTion and exploitaTion. therefor, based on the field geological research into each type of ore deposits in Hami area, and fully coordinaTing and assimilaTing the abundant previous research fruits, the author has selected some key ore deposits for further dissecTion under the help of lithology and isotope chronology. through the research on Hami regional tectonic evoluTion and its ore-control effecTion, and on regional magmaTic acTivity and heat evoluTion history and its ore-control effecTion, and especially on minerogeneTic series and metallogenic rule, this paper has relaTively and systemaTically clarified the pattern of geological structure in Hami area and the evoluTion locus of the crustal evoluTion and mineralizaTion, and also tried to apply the minerogeneTic series theory to further understand the space-Time distribuTion and evoluTion lineage of mineral resources in Hami area. Since the author has raTionally compartmentalized the minerogeneTic series, systemaTically concluded the metallogenic rule, established the regional metallogenic model and further summarized the metallogenic rule in Hami area more systemaTically and integratedly, this paper can provide the theory reference for strategical target opTimality of mineral concentraTion regions, and propose the programming on the metallogenic prognosis and mineral exploraTion.According to the recent new fruits about the isotope chronology and inert gases isotope geochemistry, this paper has systemaTically established the minerogeneTic series and subseries of ore deposits in Hami area, and discussed the geological and geochemical feature of the minerogeneTic series and subseries of each type of ore deposits and their genesis. Moreover, it has also discussed the relaTionship between the evoluTion history of minerogeneTic series of ore deposits and the development history of orogen belts, and set up the metallogenic lineage and rule in Hami area, especially during the Hercynian cycle. In this paper, it's pointed out that the characterisTic minerals in Hami mainly are ferrous metal and nonferrous metal, whose deposits formed during Caledonian epoch, Hercynian epoch, Indo-Sinian epoch and Yanshan epoch. then it also points that it's very possible to prospect the ferrous and noble metal deposits in the Cenozoic and Mesozoic magmaTic acTive regions, and the iron and copper-lead-zinc deposits in the Precambrian distribuTion regions. the study on these rules and the metallogenic rules enriches the content of regional metallogeny, and deepenes the raTional cogniTion on the metallogenic rule in Hami area, and plays an important role in guiding the geological mineral work by theory.