Earth science

Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

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Earth science > Geology

abundant metal

Earth science; Geology

Iron, aluminum, magnesium, manganese, and titanium. Ores of the abundant metals only need to be 3 – 5 times as metal-rich as average rock.

acceleration

Earth science; Geology

The rate at which velocity changes, either by increasing or decreasing.

acid mine drainage

Earth science; Geology

Water contamination by sulfuric acid produced by seepage through sulfur-bearing spoil and tailings from coal and metal mining.

agate

Earth science; Geology

A siliceous rock with alternating bands of chalcedony and variously colored chert.

alpha decay

Earth science; Geology

The process of radioactive decay in which the nucleus of an atom emits an alpha particle. The new atom’s atomic number is lower by two and its atomic mass number is reduced by ...