Geochemistry is the igneous, metamorphic,
and hydrothermal processes that occur within the earth and
other planetary bodies and on the
minerals, rocks, fluids, and ore deposits resulting from these processes.
The topics below indicate some areas
of study in Geochemistry
Origin of the elements
The atmosphere
Crystal chemistry
Solid solutions
Weathering:
Dissolution
Oxidation
Acid hydrolysis
Reaction kinetics
Solid products of weathering
Chemistry of continental waters
Radiogenic isotopes and geochronology:
Law of radioactivity
Geochronometry equation
K-Ar method
Ar-Ar method
Rb-Sr method
Sm-Nd method
Re-Os method
U, Th, Pb methods
Cosmogenic nuclides
The oceans:
Colloids and estuarine processes
Major ion chemistry
of seawater
Elemental cycling
Carbonate precipitation
Silica
Sulfides
Hydrothermal processes
Minor element behavior
Stable isotopes:
Isotope fractionation isotopic
geothermometry
Hydrogen and oxygen
isotopes
Meteoric water
Rayleigh distillation
Ore deposit studies
Isotopic geothermometry
Geochemistry
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