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北秦岭漂池花岗质岩基为早古生代岩浆活动的产物,岩石类型主要为二云母花岗岩。通过主要元素、微量元素及Nd,Sr,O同位素特征的分析,其成因类型为S型花岗岩,成岩物质来自壳源碎屑物。研究表明,秦岭群片麻岩类是形成漂池岩体的主要源岩。结合区域地质背景分析,岩体并不形成于板块碰撞环境,而形成于北秦岭早古生代活动大陆边缘,受板块俯冲作用的动力学影响所诱发的陆缘地壳物质熔融的产物。因此,漂池岩体形成的构造类型是活动陆缘的S型花岗岩,它作为一个新的构造类型应在今后关于花岗岩板块构造环境分类中单独划出。
The North Qinling drift pool granitic rock is the product of the Early Paleozoic magmatic activity, the rock type is mainly two mica granite. Through the analysis of the major elements, trace elements and Nd, Sr and O isotopes, the genetic type is S-type granite, and the diagenetic material is from crustal detritus. The research shows that the gneiss from the Qinling Group is the main source rock for the formation of the Pond pool. Based on the analysis of regional geological background, the rock mass is not formed in the plate collision environment but formed at the continental margin of the Early Paleozoic activity in the North Qinling. The rock mass is melted by the dynamic influence of plate subduction. Therefore, the formation type of the floating pool rock mass is the active continental margin S-type granite. As a new type of structure, it should be separately listed in the future classification of the tectonic setting of the granite plate.