Chemists who study the earth by analyzing its minerals,
rocks, the crust, salts and other lithospheric properties. They use reactions
such as chemical weathering, dissolution, hydration, dehydration, oxidation to
explore the relationship between chemical processes and reactions with the
atmosphere and hydrosphere.
[Environmental Chemistry; Manahan, Stanley E.; Lewis
Publishers; Boca Raton; page 451-2; 1994.] [Atmospheric Change; Graedel, T. E.;
W. H. Freeman and Company; New York; page 10; 1993.]