Study On The Relation Between Structure And Metallogenesis In The Zhongtiao Rift

The Zhongtiao mountain is one of the major copper ore concentrated area in China. It has more mineral deposited styles;its ore formation is very complexity;its geological condition of ore formation is very superiority and its foreground of further ore prospecting is very good. A long time ago the geological study work was developed in the Zhongtiao mountain area. Most anciently study were sum up geological phenomenon, it's not enough to study with ore formation and deep action process of earth;It's ore formation forecast was built up on deduction through already know chemical anomaly and mineralize, it's not enough to direction ore prospecting use modern ore formation theory. In case of ore prospecting are more difficulty, it's hard to carry out breakthrough in ore prospecting that using already know ore deposited to ore finding. The only way of carry out breakthrough in ore prospecting is study more factors of different copper ore and enhance theory level in the Zhongtiao mountain area.The ore formation condition is rift metallogenesis in the Zhongtiao mountain area. The relation is very closed between metallogenesis and tectogenesis, and the tectogenesis is belong to rift metallogenesis systerm. Tectono-dynamic metallogenesis and dynamic metallogenic model believe that tectonism pierce through mineral matter and hydro-liquid of deep part of earth. Lower crust and upper mantle are source area of mineral matter, heat energy and power. This dissertation provide forecast area based on study metallogenesis geologic background in the Zhongtiao mountain, that take the advantage of theory of tectono-dynamic metallogenesis and ore formation system, and analysis the metallogenesis rule between different copper ore style.This dissertation analysis magmata activity thermal event of formation rift evolves process and territorial metamorphism and deformation action, and mark off two stage major thermal events that one is Jiangxian stage basic volcanic rock eruption in upper archaeozoic and the other is Zhongtiao stage territorial dynamic metamorphism with larger scale basic rock irruption. Basic rock is the result of discordogenic fault activity in the rift borderline, territorial dynamic metamorphism show one stage larger scale extensional tectonics activity in rift, these all related with mantle plume activity. The all process of rift evolve have happened metallogenesis, the major metallogenesis related with greater thermal event, the mantle plume is major dynamic force of metallogenesis.Analysis the mineral deposit space regularities of distribution showing that vantage deposit of territorial metallogenesis is fracture's bottom wall and braid fracture's interjunction position in the Zhongtiao mountain;analysis the characteristics of occurrence regime and the characteristic of orebody conformation that already know, which showing that orebodies have been controlled by shear structure belt (Tong-kuangyu style) and dogleg side of interbedded fold (Hubi style). Using the theory of tectono-dynamic metallogenesis system analysis how to form vantage deposit of territorial metallogenesis with many factor superposition each other, such as analysis the metallogenesis material source, the mineral removing and concentration channelway, and the ore formation location, etc. some forecast area has been proposed. They are Jiangxian Liceyu-Pinglu Sanmcndong copper, gold, plumbum, zinc metallogenesis forecast area, Yuanqu Tongkuangyu-Jiangxian Houshancun copper metallogenesis forecast area, Yuanqu Tongshan-Luojiahe copper and iron metallogenesis forecast area, Yuanqu Yanjiachi-Wenxi Dongyugou copper metallogenesis forecast area, and Yuncheng Xiezhou-Xiyao gold and copper metallogenesis forecast area. Analysis geologic function of after metallogenesis showing that most Zhongtiao mountain area's copper ores do not suffer from stronger denudation but located insidiousness regime or half insidiousness regime. Some larger scale insidiousness regime copper ores could be found if using advanced effective methodology of mineral exploration.