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地球学报  2008 

焦家金矿床成矿流体运移的通道、方式及驱动机制

DOI: 10.3975/cagsb.2008.01.10

Keywords: 趋势面分析,运移通道,运移方式,驱动力,流体,焦家

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Abstract:

流体输导系统是成矿研究中的一个重要内容.本文通过焦家金矿床地质特征研究及趋势面分析等手段,探讨矿床成矿流体运移的通道和方向,进而对流体运移的方式和驱动作了分析.认为矿体的形成和空间分布受断裂流体输导系统的控制,流体总体从南西向上和侧向运移;由于断裂构造带不同部位岩石破碎程度不同,从而导致具有差异的孔隙度和渗透率,进而影响流体的运移方式;流体运移的驱动力主要由构造产生的附加静水压力所引起,同时重熔岩浆的上侵作用加速了流体的运移速率.

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