富含有机的酸性流体与岩石作用时，矿物的溶蚀有利于次生孔隙的形成。
The migration of fluids rich in organic acid played a very important role in development of secondary pores.
认为形成这一类型矿床的流体是一种高氧逸度、高硫逸度的中低温酸性流体。
It is concluded that the fluid forming this type of copper-gold deposit is one high oxygen and sulphur fugacity and low-to-moderate temperature acid fluid.
在酸性流体条件下，一些矿物发生溶解，而另一些矿物发生沉淀，使砂岩的孔渗发生改变。
Under acid fluids environment, some minerals will be dissolved and some other minerals are deposited, so, the porosity and permeability of the sandstone will change.
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