The Comparative Study Of The Chagandeersi Molybdenum Granite Rock And The South China Molybdenum Granite Rock

The Chagandeersi molybdenum mine is a large molybdenum deposit in InnerMongolia Wulate Houqi. This paper mainly studies the geological features ofChagandeersi molybdenum mine, mineralization of granite and South Chinamolybdenums granite rock, and makes a comparison of geochemical characteristics ofmolybdenum mine granite rock of Chagandeersi and the South China molybdenumsgranite rock.Chagandeersi molybdenum mine is a large concealed mineral deposit with thecharacteristics of porphyry deposit, and the ore-forming mother rock is a large numberof outcropping biotite granites. With mineralization granite with high-Kcalc-alkaline, peraluminous, high silicon, etc., the main accessory minerals areanorthite, albite, abite, orthoclase, corundumand and so on. The geochemicalcomparison study can be drawn below: Chagandeersi granite has the same diageneticmaterial sources with the granite of typical molybdenum mine in South China with theshell source material as the mainly source; in addition to Yuanling, Village granite isshoshonitic series; the other three molybdenite granite are high-K calc-alkalinegranites, where the Chagandeersi granite and Huangshaping granite are peraluminousgranites, the Yuanling Village granite and Huangshaping granite are metaluminous toperaluminous granites. The Chagandeersi Granite diagenetic tectonic is in thesyn-collisional environment or in post-collisional tectonic environment, while theother three regions granite formed the intraplate tectonic environment.Chagandeersi mineralization granite zircon SHRIMP U-Pb geochronology canshow that the diagenetic age of the granite is late Hercynian and early Indo-China(236.8±4.5Ma to258.8±3.3Ma). The zirconium stone SHRIMP U-Pb measuredyears show the era of other three typical molybdenum mine in South ChinaareYanshan period (160Ma). Diagenetic age of four regions granite and thecorresponding deposit molybdenum mineralization era is very similar.`Through the comparative study above, every granite molybdenum oremineralization is closely related. In addition to molybdenum mine of Huangshapingand Chagandeersi, Yuanling Village and School pit granite are the molybdenite orerock and provide a lot of material sources for molybdenum mineralization.Huangshaping has large molybdenum ore bodies and small bodies of granite, andgranite is mineralization rock mass rather than ore rock, with the main source ofmaterial from hydrothermal upwelling carried into minerals.