Tuesday, September 16, 2008

Geology is the science that deals with the history of the Earth and the solid and molten matter that constitutes it. Geology studies the composition, structure, physical properties and the processes that shape Earth's components. Geology has established the age of the Earth at about 5,000 billion years. The word "geology" was first used by Jean-Andre Deluc in the year 1778 and introduced as a fixed term by Horace-Benedict de Saussure in the year 1779.