GEOLOGY

Detailed explanation-1: -For groundwater to be able to get into a rock with good porosity it must also have good permeability. For a rock to be permeable and for water to move through it, the pore spaces between the grains in the rock must be connected. Permeability is therefore a measure of the ability of water to move through a rock.

Detailed explanation-2: -Permeability is a measure of the ease of flow of a fluid through a porous solid. A rock may be extremely porous, but if the pores are not connected, it will have no permeability.

Detailed explanation-3: -An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells.

Detailed explanation-4: -Porosity is the percent of open spaces or voids within a volume of soil or rock. The porosity of rocks describes the rocks’ capacity to hold water. Permeability is a physical property of soil and is defined as the rate of water movement through interconnected pores within soil or rock.

Detailed explanation-5: -Porous and permeable materials include soil (if not too clay rich), sand, sandstone, limestone, fractured igneous and metamorphic rock, vesicular basalt and scoria. Impermeable and/or non-porous materials include clay, shale, non-fractured igneous and metamorphic rocks.