The effect of brine on the creep behaviour and dissolution chemistry of evaporites

摘要: To evaluate operational problems in evaporite deposit utilization associated with brine, halite, sylvinite, and carnallitic ore were creep tested under unconfined conditions, both without added brine. Axial deformation dissolution chemistry where observed throughout the tests. In sylvinite tests, selective of sylvite carnallite minerals was precipitation halite. The nature this process dependent on temperature initial brine composition. Generally, presence caused a decrease resistance to deformation. It is suggested that weakening evaporites dilatant conditions due primarily enhancement fracture mechanics processes through from stressed areas rock, such as fracture-process zones asperities acting barriers slip. Correlation results variety practical environments, including...