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永平铜硫矿床成因主要有矽卡岩成矿说和沉积-改造成矿说2种.虽然矿体经受了强烈改造作用,仍保留沉积特征,因此认为同生沉积-改造成......

八面山萤石、钨锡多金属矿床赋存于中、上寒武统碳酸盐岩地层内,沿燕山期侵入的岩前二长花岗岩体环状分布.成矿具有多阶段、多类型......

Gold occurs in a wide range of deposit types and settings. In the last decade, significant progress has been made in the......