"A liquid water layer or pocket in contact with the rock, which is deep below Enceladus' surface, will acquire sodium from the rock - essentially leaching the rock," he says.

In this paper, we reported the preparation of porous silica using mechanical activation and subsequent leaching from layer silicate, such as kaolin, illite, talc and pyrophyllite.

Effects of applying different nitrogen fertilizer on yield, quality and nitrate leaching in soil layer were studied during the cucumber growth period in greenhouse.