【摘要】 在成矿有利的区域地质环境中,局部地段具有最优的、独特的成矿地质条件及其最佳配置,同时成矿后又有好的保存条件,就可形成大型—超大型矿床。更多还原

【Abstract】 When there were the most excellent and special metallogentic geological conditions and the best composition among them in the useful regional geological environments, and at the time, there was very complete reserved condition after the deposits and/or the source-bed were formed, the large-ultralarge deposits could be built.更多还原