EARTH 119 Chapter Notes - Chapter 19: Capillary Fringe, Hydraulic Head, Aquifer
11 Nov 2016
School
Department
Course
Professor
Document Summary
Groundwater: water that resides under the surface of the earth, mostly in pores or cracks of rock or sediment. Sinkhole: a circular depression in the land that forms when an underground cavern collapses. Soil moisture: underground water that wets the surface of the mineral grains and organic material making up soils, but lies above the water table. Pore: a small, open space within a sediment or rock. Porosity: the total volume of empty space (pore space) in a material, usually expressed as a percentage. Primary porosity: the space that remains between solid grains or crystals immediately after sediment accumulates in rock form. Secondary porosity: new pore space in rocks, created some time after a rock first forms. Permeability: the degree to which a material allows fluids to pass through it via an interconnected network of pores and cracks. Aquifers: sediment or rock that transmits water easily.
