GEOLOGY

Detailed explanation-1: -Porosity is the percentage of void space in a rock. It is defined as the ratio of the volume of the voids or pore space divided by the total volume. It is written as either a decimal fraction between 0 and 1 or as a percentage. For most rocks, porosity varies from less than 1% to 40%.

Detailed explanation-2: -Porosity is the percentage of the total volume of rock or sediment that consists of pore spaces or open holes.

Detailed explanation-3: -More specifically, porosity of a rock is a measure of its ability to hold a fluid. Mathematically, it is the open space in a rock divided by the total rock volume (solid and space). Permeability is a measure of the ease of flow of a fluid through a porous solid.

Detailed explanation-4: -Porosity is the amount of space (volume) that is openings which are available to hold water. Porosity is made up of pores between sediment grains (clastic sedimentary rocks), and cracks (igneous, metamorphic, and limestone).

Detailed explanation-5: -Porosity is a measure of the open space expressed as the percentage of open space that makes up the total volume of the rock or sediment material.