The filtration of a supercritical brine flow during the magma chamber degassing is numerically simulated with consideration of quartz transport and deposition. It is shown that the quartz deposition and the accompanying decrease of permeability reduce the size of the concentrated brine lens formed above the magma chamber. The effect of rock hydraulic fracture on the lens formation is studied. An unsteady degassing regime is revealed; this regime is associated with a periodic increase and decrease in permeability due to the hydraulic fracturing and quartz deposition. The obtained numerical results are in agreement with the geological data on the structure of copper deposits.

中文翻译：

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石英沉积对岩浆室除气动力学的影响

岩浆室脱气过程中超临界盐水流的过滤是在考虑石英传输和沉积的情况下进行数值模拟的。结果表明，石英沉积和随之而来的渗透率降低，减小了岩浆腔上方形成的浓盐水透镜的尺寸。研究了岩石水力压裂对晶状体形成的影响。出现了不稳定的脱气状态；由于水力压裂和石英沉积，这种状态与渗透率的周期性增加和降低有关。所得数值结果与铜矿床构造的地质数据吻合。