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在1:5万内蒙古察哈尔右翼前旗、隆盛庄、西官村及永善庄4幅区域矿产地质调查的基础上,对以油篓山为代表的侏罗纪岩体从岩石学、岩石化学、稀土及微量元素等特征方面进行了初步研究。采用富集系数来讨论元素富集成矿问题,侏罗纪岩体富集—强富集的元素有Ag、Pb、Zn、As、Sn、Sb、Hg、W、Bi和Mo,说明侏罗纪岩浆活动为成矿提供了含矿热液。岩石化学及地球化学特征研究表明,测区侏罗纪岩体属钙碱性系列的铝饱和—过饱和类型,显示为碰撞阶段岩浆作用产物;似斑状花岗岩岩体稀土元素配分曲线向右陡倾,倾角较陡,说明轻、重稀土分离明显;石英斑岩岩体稀土元素配分曲线右倾,倾角平缓,表明轻、重稀土未有明显分馏。
On the basis of the mineral geology survey of 1: 50000 Chajhou right wing front flag, Longshengzhuang, Xiguan village and Yongshanzhuang area in Inner Mongolia, the Jurassic rock represented by Yunshan Mountain was studied from petrology, petrochemistry , Rare earth and trace elements and other characteristics of a preliminary study. The enrichment coefficient is used to discuss the element enrichment and mineralization. The enriched and strongly enriched elements in the Jurassic pluton are Ag, Pb, Zn, As, Sn, Sb, Hg, W, Bi and Mo, indicating that the Jurassic magmatic activity For the mineralization provided ore containing hydrothermal solution. The study of petrochemistry and geochemistry shows that the Jurassic intrusive rocks in the survey area are of the Al-Saturated-supersaturated type of calc-alkaline series and are shown as magmatic products during the collision stage. The Rare Earth element distribution curves of the plagioclase granite intrusive steeply to the right, Steep, indicating light and heavy rare earth separation obvious; quartz porphyry rock rare earth element distribution curve of right-angled, gentle dip, indicating that light and heavy rare earth is not obvious fractionation.