中国大陆边缘构造属性与超巨量金属工业堆积

研究了大陆边缘的形成与演化，以中国大陆已存在的3条陆壳对接消减带为界，划分了5个大陆边缘构造带、13个次一级的边缘构造区及其内部的58个时空配置结构，并据区内现有金属矿产地计算了其发现几率。依据大陆边缘的形成、演化及其动力学特征，将中国大陆边缘划分为离散型、汇聚型、对接碰撞型和转换型4类，并总结了其成矿专属。大陆边缘虽然有利成矿，但是超巨量金属工业堆积应取决于其成矿有利因素是否达到最佳耦合。提出了最佳耦合应是异常地质事件激发正常成矿作用发生“引潮共振”①的结果。

Tectonic Attribution of Continental Margins of China and Super Accumulation of Metals

The crust was split into continental crust and oceanic crust by inhomogeneous differentiation. Continental margins with different tectonic features were formed by continent splitting, oceanic crust subduction or continentcontinent collision. Five marginal tectonic belts, thirteen secondary tectonic regions and fifty-three spacetime distribution structures are subdivided according to the distribution of three continent-continent collisionbelts. The probabilities for discovering deposits in tectonic regions are calculated based on existing deposits.Continental margins are divided into divergence type, convergence type, collision type and transform type, and their metallogenetic series specialization is summarized. It’s very important for metallogeny that advantageous metallogenetic multi-factors are coupled. Super accumulation of metals is controlled by exceptional metallogenesisand special geological events are key to make metallogenesis exceptional.