jinn

1.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.

明确黄陵地区孔兹岩为一套变质的富铝质沉积岩组合，在晋宁期造期间套岩四期变质作用。