安徽省大别造山带大地构造相划分及其特征

大地构造相是反映陆块区和造山系(带)形成演变过程中,在特定演化阶段、特定大地构造环境中,形成的一套岩石构造组合,是表达大陆岩石圈板块经历离散、聚合、碰撞、造山等动力学和地质构造作用过程而形成的综合产物。安徽省大别山集造山系之大成,包括结合带大相、弧盆系大相和地块大相。不同相、亚相分别具有不同沉积岩建造组合、火山岩、侵入岩、变质岩岩石构造组合和大型变形构造特征,对成矿控矿具有决定性意义。

Division and features of tectonic facies of the Dabie orogen in Anhui Province

Tectonic facies reflect petrotectonic assemblages formed in specific evolutional stages and tectonic settings dur- ing evolving process of a continental block and orogenic system （zone）, and represent a comprehensive product of conti- nental lithospheric plate through dynamic and geotectonic processes such as separation, convergence, collision and oro- genesis. The Dabie Mt, Anhui Province is a complete orogenic system that embodies plate junction, arc-basin system and massif megafacies. Different facies and sub-facies represent different sedimentary rock formation association, and volcanic, intrusive, metamorphic petrotectonic association and features of big deformational structures, being of deci- sive significance to mineralization and ore control.