These brines are hot (300 F to 400 F) (149 C to 204 C) pressurized waters that contain dissolved methane and lie at depths of 10,000 ft (3048 m) to more than 20,000 ft (6096 m) below the earth's surface. The best known geopressured reservoirs lie along the Texas and Louisiana Gulf Coast. At least three types of energy could be obtained.
Georgian style
Popular 18th century style featuring a symmetrical faŤade, a prominent front entrance and quoins (decorative blocks of masonry or wood which are set in the corners of the house). This classic style has two to three stories.
Geothermal energy
Natural heat from within the earth, captured for production of electric power, space heating or industrial steam.
Geothermal equipment
Heat pumps that uses the ground to transfer heat to and from the refrigerant in the unit. The unit circulates water through a heat exchanger in the to a closed loop buried in the ground or by pumping water from a well through the unit.
Geothermal gradient
The change in the earth's temperature with depth. As one goes deeper, the earth becomes hotter.
Geothermal heat pump
A type of heat pump that uses the ground, ground water, or ponds as a heat source and heat sink, rather than outside air. Ground or water temperatures are more constant and are warmer in winter and cooler in summer than air temperatures. Geothermal heat pumps operate more efficiently than "conventional" or "air source" heat pumps.
Geothermal power station
An electricity generating facility that uses geothermal energy.
Germinate
The sprouting of a seed.
Germination
The first stage in the development of a plant from seed. The breaking of dormancy in seeds or the sprouting of pollen grains deposited on a stigma.
Gesso
Plaster surface that has been prepared for painting by being coated with glue or another type of material.