摘要: Discovery of lode gold deposits in many typical high grade metamorphic terranes of the world suggests a potential for further gold exploration in such terranes. Iron-rich lithologies in Archaean gneiss-granulite associations often... 展开 Discovery of lode gold deposits in many typical high grade metamorphic terranes of the world suggests a potential for further gold exploration in such terranes. Iron-rich lithologies in Archaean gneiss-granulite associations often provide the main source for gold mineralization which is either syn-metamorphic or post-metamorphic in most cases. High-temperature alterations which produce K-feldspar, biotite, garnet and pyroxene are closely associated with the gold mineralization. Both of the alteration and mineralization are controlled by ductile shear zones of different scales. Among the ore minerals, lollingite, pyrrhotite and arsenopyrite show a higher frequency of occurrence. Gold mineralization in Archaean high grade terranes occurs in a wider range of temperature than that in granite-greenstone belts, varying from 200-250 °C up to 700 °C. High grade regional metamorphism is not a destructive factor for the formation of lode gold deposits. High strain deformational zones, K-feldspar + biotite alteration and silicification as well as iron-rich lithologies are the key criteria for gold exploration in high grade terranes. 收起