porous rock
Water-absorbing geological formation
Porous rock contains tiny spaces or holes that can hold fluids like water, oil, or gas.
Sandstone and limestone are common examples.
The degree of porosity—how much empty space exists—determines how much fluid the rock can store, making porosity crucial in geology, hydrology, and petroleum extraction: The aquifer formed in porous rock beneath the valley.
- sandstoneCemented grain sediment
- limestoneCarbonate sedimentary rock
- aquiferGroundwater-bearing geological formation
- water tableTop of groundwater zone
- permeableAllowing substances through
sponge · sea sponge · volcanic · pumice · groundwater · natural sponge · sedimentary · coral · reservoir · crude oil · seepage · cavern · underground spring · chalk · filtration · basalt · absorption · bedrock