Geology

Geology

The science that comprises the study of the solid Earth and the processes by which it is shaped and changed.

Industry: Earth science

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Geology

Craters with streaks

Earth science; Geology

Ray craters with a distinctive radial pattern of fresh ejecta.

Ferromagnesian

Earth science; Geology

Containing iron and magnesium, applied to the mafic minerals. Example: olivine.

An "S-type", main belt asteroid of silicaceous chemical composition. 951 Gaspra, photographed by the Galileo spacecraft in 1991, is a generally gray, irregular object measuring 18 x 11 x 19 km. The ...

Flood basalts

Earth science; Geology

A term applied to those basaltic lavas that occur as vast composite accumulations of horizontal or sub-horizontal flows, which, erupted in rapid succession over great areas, have at times flooded ...

Galileo spacecraft

Earth science; Geology

The Galileo mission consists of two spacecraft: an orbiter and an atmospheric probe. The probe descended through the cloud layers of Jupiter and relayed information about the pressures, chemical ...

Galileo Galilei

Earth science; Geology

(1564-1642). Italian mathematician, astronomer, and physicist. First astronomer to use a telescope to observe the skies and discoverer of the major (Galilean) moons of Jupiter, craters on the Moon, ...

Framework silicates

Earth science; Geology

A class or structural type of silicate characterised by the sharing of all four oxygens of the SiO 4 tetrahedra with neighbouring tetrahedra, and with a Si:O ratio of 1:2. Quartz, SiO 2 is an ...