陕西周户地区“秦岭群”的解体

BREAK UP FOR THE QINLING GROUP IN ZHOUZHI-HUXIAN REGIONS, SHAANXI

根据区内传统秦岭群包含不同原岩建造、不同变质岩石组合以及变形变质、副矿物和微量元素特征的差异，将其解作为丹凤岩群、深成侵入体、浅成一超浅成侵入体、片麻岩套等5个部分，首次区分出两类不同性质的混合岩，确认了秦岭群在该区的存在。

In this paper, Qinling Group is dismembered into Danfeng rock swarrn, plutonic intrusive, hypabyssal-superhypabyssal intrusive and gneiss suite, etc. on the basis of traditional Qinling Group containing different protolith formation, rnetarnorphic rocks assemblage, deformation and metamorphism as well as difference in respect of accessory mineral and microelement features. It is first tirne to distinguish two kinds of different property migmatite from the region Thus, it is certain that there exist Qinling Group in Zhouzhi-Huxian regions.