2. WATER PERCOLATION THROUGH PORESWATER PERCOLATION THROUGH PORESWATER PERCOLATION THROUGH PORESWATER PERCOLATION THROUGH PORES
PORES (VESICLES)PORES (VESICLES)PORES (VESICLES)PORES (VESICLES)
QUARTZQUARTZQUARTZQUARTZ VESICLESVESICLESVESICLESVESICLES