Geochemical And Geological Significance Of Taibai Granite In North Qinling Belt

Combined investigation of fied observation petrology, zircon U-Pb, geochemistry, and disribution of Qinling orogenic tectonic belt evolution,and taking available previos data into accout, following results is achieved1.Taibai grantic was confirmed as paleozoic piuton by zircon U-Pb dating. the Wulixia grantic obtained 419.3±6.5Ma by LA-ICP-MS zircon U-Pb dating. According to the previous research data.2.Wulixia granite and Hongyahe granite belong to calc-alkaline and high K calc-alkaline series, with I-type granite characteristics, which is relative enrichment of LILE and HFSE depletion, andwhich is high Sr and low Y characteristics; Xiabansi granite belongs to the shoshonite-high-k calc-alkaline series, with A-type granite characteristics, which is relative enrichment of LILE, and depleted in HFSE, and moderate degree of Eu negative anomaly.3.Wulixia granite of North Qinling Taibai Rock North is the arc-tectonic environment; south of the Hongyahong granite is collisional and post-collisional tectonic setting; northern plate Xiabansi granite belongs to intraplate tectonic environment.