Study On Yunnan Super - Large Metal Deposits

The doctoral dissertation, Super Larg metal Deposit research of Yunnan province, is based on the scientific research requirements for the Yunnan Science Association project, which is based on Super Larg Deposit research in Yunnan and which is according to the needs of economic and social development in Yunnan in 1995.Mineral resources are the human survival and development of material basis. Exploitation of Mineral resources create a world civilization and wealth. Mineral resources related to socio-economic closely. Mineral resources related to national security.At present China accounts for 95% of primary energy and 75% of industrial raw materials come from mineral resources.But our country’s major mineral resources to guarantee is in a very low level, which is very serious.There is Serious shortage of reserve resources. New mining resource base find hardly. There is large gap in Future demand for mineral resources.Mineral resources serious throated to the country’s economic security and social stability.According to statistics,there are 75-95persent needs of metal content in the world Provided from Super Larg Deposit accounting for 5% of the total number of metal deposits(P Laznicka.1994).In China,there is 8-10persent deposit Provided 80 persent metal reserves. It can clearly be seen that there are small number of Super Larg Deposit,which is very important for the economy. Super Larg Deposit means enormous profit that is why mine Prospecting have great economic significance of particular.In recent years, the author researched in super large metal deposit,which combined science and technology projects in Yunnan Science and Technology Department and the mining company. Such as "Digital Commercial Rapid Economic Evaluation of Beiya Gold Mine" is based on the science and technology key item(Industry and High-tech) of Yunnan province "The commercial digital rapid evaluation and its demonstration of mineral resources"(item number:2003GG01) in 2004-2006. The Metallogenic Series and The Comprehensive Information Metallogenic Prognosis In Beiya Gold-polymetallic Deposit is selected based on the science and technology key item(Industry and High-tech) of Yunnan province "The commercial and digitized rapid estimation and demonstration of mineral resource"(serial number:2003GG01) in 2004-2006. The Prospecting information integration and investigation target area optimal and research in Lao Junshan tin zinc polymetallic minerogenic region and the three-dimensional visualization mathematics-economic research of tin-zinc polymetallic deposit in Manjiazhai, Dulong, Maguan(contract serial number:6193) in 2006-2008.The doctoral dissertation, Super Larg metal Deposit research of Yunnan province completed based on the above-mentioned study, achieved results mainly as follwing:1. We investigated through 7 Super Larg metal Deposit in yunnan. Research shows that:in Cenozoic, there is Mineralization intensity era of Super Larg Deposit in Yunnan.which formed more larg deposits. Because Yunnan Located on Special tectonic position and Strong tectonic activity magmatic. Research shows that:Super Larg Deposit is in the Intersection area between tectonic units.Units is Boundaries Fracture. Stratum., Fracture, Magma and Geological history have big Difference between Both sides.It is Discontinuity zone in Geological, geophysical and geochemical. At the same time this units have Deep-source magmatic Mineralization,have more Ore sources,have Ore space and have ore Medium conditions. Variety of forming conditions of the coupling is very conducive to the formation of Super large deposits.2. The use of system theory point of view, a detailed study of 7 super larg metal deposit in yunan geotectonic evolution, occurrence condition and morphologic occurrence, mineral association, ore texture, metallotect, mineralization, metallogenetic epoch and deposit mode of origin. Pointed out that 7 super larg metal deposit in yunan mining for exhalative sedimentary and subvolcanic hydrothermal deposit, theoretical research, not only can obtain a theoretical breakthrough in ore genesis, but also for guiding the exploration of deposits of mines has obvious practical significance.3. Through the rearch of regional geological background and metallogenic geological characteristics of mining deposits, the metallogenic substance in the district shown as a multi-source origin in which the Mantle source is important. Super larg deposit in Yunnan is the role of experienced multi-stage multi-period, in order to "polygenetic" deposit. 4.Based on volcanogenic sedimentary hypothesis and subvolcanic hydrothermal in 7 Super Larg metal deposit in yunnan metalloginic geology, according to the study area strata, rocks and deposits of a comprehensive macro and micro data analysis,we propose theoretical understanding of 7 Super Larg metal deposit mode of origin in yunnan, which have more multi-stage mineralization and more minerals.5.Based on volcanogenic sedimentary hypothesis and subvolcanic hydrothermal in 7 Super Larg metal deposit in yunnan metalloginic geology, geophysical prospecting, geochemical exploration and remote sensing, by the digital mine study,we confirmed the affinity and found the comprehensive information prospecting model between controlling ore factors and metallogenic information by space analysis, which preliminary gave targets area in 7 Super Larg Deposit in yunnan.