黄陵地区孔兹岩系岩石学特征及变质作用探讨

Discussion on Khondalite Lithology and Metamorphism in the Huangling Area

通过对黄陵地区孔兹岩系构造背景、岩石化学、微量稀土、变质矿物组合、岩石微相特征研究,初步勾画出晋宁期造山运动与黄陵孔兹岩系变质演化历程。明确黄陵地区孔兹岩系为一套变质的富铝质沉积岩组合,在晋宁期造山运动期间该套岩系经历四期变质作用。为今后黄陵地区孔兹岩系研究提供重要参考。

Based on the study of the structure background of Khondalite, geochemistry, REE and micro-elements, metamorphic paragnetic association minerals, and the micro-characteristics of rock, the author sketches the evolvement history of Jinning movement and the metamorphism Khondalite lithology in Huangling area. The khondalite lithology is composed of a suit of metamorphic aluminium-sedimentary rock. During the Jinning movement, the sedmentary rock experienced four stages of metamorphism. The result will provide an important evidence for the study of Khodalite lithology in the future.