华阳川铀多金属矿成矿地质规律分析

Analysis on metallogenic geological regularity of Huayangchuan uranium-polymetallic Deposit

华阳川铀多金属矿床位于华北板块与秦岭造山带接触的小秦岭地区,该矿床类型非常独特,在国内外尚未发现此类大型铀多金属矿床。本文在已有地质资料的基础上,挑选了与华阳川铀铌铅矿床相关的地层体、岩体以及各类脉岩进行了详细的镜下鉴定、锆石U-Pb定年等研究,同时较为深入地分析研究了矿床岩矿石岩相学特征、地球化学特征、同位素年代学特征,并对矿床蚀变矿物期次进行重新厘定,初步探讨了矿床成因,总结了矿床成矿规律。

The Huayangchuan uranium-polymetallic deposit is located in the small Qin Mountains area where the north China plate is in contact with the Qin Mountains Orogenic belt. On the basis of the available geological data, this paper selects the stratigraphic bodies, rock bodies and various types of dikes related to the Huayangchuan uranium-niobiumlead deposit for detailed microscopic identification and Zircon U-Pb dating At the same time, the petrographic features, geochemistry features and ISOTOPIC geochronology of the deposits are analyzed and studied in depth, and the altered mineralogical stages of the deposits are redefined, and the genesis of the deposits is preliminarily discussed The metallogenic regularity of the deposit is summarized.