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到目前为止人们所注意的成矿机制有关组分的分异途径主要有两个方面,一是结晶分异,一是熔融或溶解分异,其特征均在于强调组分存在状态的改变。表面看来,似乎存在状态的改变是物质组分分异富集的直接原因。如某时某地只有某种组分结晶析出,它必将富集成矿;又如随着非成矿组分的不断结晶,必然使成矿组分富存于残液中,这也是人们常用的推理。再如在某种条件下只有成矿组分进入流体介质也可能形成矿液或矿浆。但若深入探究即可发现,这种只注意存在状态的改变而忽略中间迁移过程的论点是值得商榷的。道理十分明显,无论是结晶分异或者熔融与溶解分异,都必须相继伴随不同组分的空间位移才能使分离效应得以最后完成。否则也只有存在状态改变的时间先后差异而无空间上的分离,这种现象在地质作用中也是屡见不鲜的。至于不同组分能否发生与
So far people have noticed that there are mainly two ways to differentiate the relevant components of the metallogenic mechanism. One is the crystallization differentiation, the other is the melting or dissolution differentiation, which is characterized by the emphasis on the change of the existing state of the components. On the face of it, it seems that the change of state appears to be the direct cause of the divergence and enrichment of the material components. Such as a certain time to somewhere only a crystalline precipitation, it is bound to enrich the mineralization; another example, with the continuous crystallization of non-metallogenic components, inevitably enrich the ore-forming components in the raffinate, which is commonly used Reasoning. As another example, under certain conditions, only the ore-forming components into the fluid medium may also form mineral liquid or pulp. However, if we look deeply, we can find that this argument that only states the change of state and ignores the process of intermediate migration is debatable. The reason is obvious, whether it is the crystallization differentiation or melting and dissolution differentiation, must be accompanied by different components of the spatial displacement in order to make the separation effect can be finally completed. Otherwise, only the time when the state changes exists and there is no spatial separation, which is not uncommon in the geological process. As different components can occur with