GEOLOGY

Detailed explanation-1: -There are compact rocks which do not have pores. Since they do not have pores, they don’t let water enter or pass through them. And hence, these rocks are referred to as impermeable or impervious rocks.

Detailed explanation-2: -Impermeable and/or non-porous materials include clay, shale, non-fractured igneous and metamorphic rocks. Porous/permeable layers are called aquifers; impermeable layers called aquicludes.

Detailed explanation-3: -Sedimentary rocks often contain small holes called pores which can contain water or other fluids are called porous rocks Whereas Rocks which do not contain pores are called non porous rocks. Examples: chalk, limestone, sandstone, shale, clay, coal, conglomerate, breccia.

Detailed explanation-4: -Granite rock, which is negligibly porous and highly impermeable and hence neither contains nor yields ground water is an example of.

Detailed explanation-5: -Definition: Some rocks have pores in them, which are empty spaces. If these pores are linked, then fluid can flow through the rock. However, if the pores are not linked, then no liquid, for example water, can flow through the rock. When the pores are not linked, the rock is impermeable.