Groundwater

Business / Agriculture / Groundwater: The water from wells and underground aquifers. An estimated 95% of the drinking water used in rural areas is from groundwater. Because of its use as drinking water, there is concern over contamination from leaching agricultural and industrial pollutants or leaking underground storage tanks.

Perched Groundwater

Science / Geology / Perched Groundwater: An isolated body of ground-water that is perched above and separated from the main water table by an aquiclude. MORE

Infiltration

Business / Agriculture / Infiltration: The downward entry of water into soil. Also called percolation. A high rate of infiltration means that soil moisture for crops will be higher. Many conservation practices, such as conservation tillage MORE

Phreatomagmatic

Science / Geology / Phreatomagmatic: An explosive volcanic eruption initiated by the interaction of magma and water (usually either meteoric or groundwater). MORE

Hydrothermal Activity

Science / Geology / Hydrothermal Activity: Any process involving high-temperature groundwaters, especially the alteration and emplacement of minerals and the formation of hot springs and geysers. MORE

Landslide

Science / Geology / Landslide: The rapid downslope movement of soil and rock material, often lubricated by groundwater, over a basal shear zone: also the tongue of stationary material deposited by such an event. MORE

Protactinium (Pa)

Science / Periodic Table of Elements / Protactinium (Pa): Atomic number: 91, Atomic mass: 231.0359 g.mol -1, Electronegativity: 1.5, Density: 15.37 g.cm-3 at 20°C, Melting point: 1600 °C, Boiling point: unknown, Vanderwaals radius: unknown, Ionic radius: u MORE

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