GEOLOGY

Detailed explanation-1: -Porosity: is a measure of the void spaces in a material. Permeability: a measure of the ability of a material (such as rocks) to transmit fluids. Porosity and permeability are related properties of any rock or loose sediment. Both are related to the number, size, and connections of openings in the rock.

Detailed explanation-2: -Water-filled pore space (WFPS) is the ratio of volumetric soil water content to total soil porosity. A soil’s WFPS is determined simply from its bulk density and moisture content, because particle and water densities are stable at  2.6 and 1 kg/l respectively. Preferred Units: percent. Scope Note: N/A.

Detailed explanation-3: -Porosity is the amount of pore space that is between particles in soil or rocks. Permeability takes this pore space and connects the voids together so that water can pass through. Porosity is more associated with storage of water, while permeability is more associated with groundwater movement and flow.

Detailed explanation-4: -The saturated zone, a zone in which all the pores and rock fractures are filled with water, underlies the unsaturated zone. The top of the saturated zone is called the water table (Diagram 1). The water table may be just below or hundreds of feet below the land surface.