Letter "G"

Geological age

GEOLOGICAL AGE is the time, which has elapsed since the certain geological event (the accumulation of the layers of the rocks, the advancement of the sea, the effusion of the ancient lavas, the introduction of the intrusions, and so on).

Great Dyke

GREAT DYKE is the intrusive massif within Zimbabwe with the deposits of the chromium ores, which are the greatest deposits in terms of the reserves.

Gravity variometer

GRAVITY VARIOMETER is the instrument for the measurement of the second derivatives of the potential of the gravitational field, which are characterizing the variation of the force of gravity along the horizontal direction...

Geological age

GEOLOGICAL AGE is the geochronological sub-division, which is subordinated to the geological epoch; the interval of time, during which there has deposited itself the stratum of the rocks, which are forming the geological stage.

Greater Burgan

GREATER BURGAN is the petroleum field within Kuwait, one of the largest within the world. It belongs to the Persian Gulf petroleum-and-gas basin.

Great Salt Lake

GREAT SALT LAKE is the salty lake within the north-western part of the Utah state, within the USA, which is containing the industrial concentrations of the salts within the brines.

Great Geysers (The Geysers)

GREAT GEYSERS is the largest geothermal field of the world (USA, California state), at the distance of 140 kilometres from San Francisco city to the north, within the Valley of the Great Geysers.

Gray copper ores

GRAY COPPER ORES (named according to the pale lustre) is the group of the minerals, complex sulfides (sulfosalts) of copper, which are forming the isomorphous series with the Cu12(Sb,As)4S13 general formula.