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地质通报  2005 

关于成矿作用地球化学研究的几个问题

, PP. 885-891

Keywords: 成矿作用地球化学,应用地球化学,问题讨论

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Abstract:

成矿作用地球化学是矿床地球化学的基础理论分支,属于应用基础类学科,以地球化学原理和方法研究造成元素沉淀富集形成矿床的地球化学作用的原因和机理.本文讨论了热液矿床成矿作用的几个问题.指出花岗岩与矿床类型之间是否存在相关性,即花岗岩是否具有成矿专属性仍然存在争论,需要继续探索.花岗岩类具有成矿潜力不等于这些花岗岩最终都能成矿.决定岩浆发生成矿作用的因素很多,其中岩浆分异作用过程和流体释放时间及其机制可能是决定成矿发生和矿床类型的关键,岩浆熔体中挥发组分及其行为可能是岩浆能否发生成矿作用的决定性要素,聚焦流体流动是成矿作用能否发生的关键环节,而自组织临界性和反馈作用决定了成矿效率和矿床的规模.

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