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It can generally be defined as the science of learning: principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans. The realm of geochemistry extends beyond the Earth, encompassing the entire Solar System and has made important contributions to the understanding of a number of processes including mantle convection, the formation of planets and the origins of granite and basalt.



Exploration / prospecting geochemistry:


more emphasis on measuring the abundance, distribution, and migration of ore elements or elements directly related to ore, in order to track keterdapatan an ore deposition. Geochemical exploration in a more narrow sense prospecting, geochemical exploration is a technique through one or more systematic measurement of trace elements in rocks, soil, sediment, vegetation, water, or gas, to obtain geochemical anomaly, namely abnormal concentrations of certain elements that contrast against the environment (geochemical background) with the aim of: found concentrations of metal (ore deposits) that can be mined.

Distribution of Elements in the Earth's Crust The elements of a common base metal: copper, zinc, and nickel are relatively rare, each only about 100 ppm, while the team just eight constituent elements of the earth's crust that have more abundance> 1%, namely:

oxygen and silicon to form nearly 75% of the earth's crust, aluminum, iron, calcium, sodium, potassium and magnesium are next in line, where the aluminum is about 8%, 2% magnesium. bal 15 ppm. White lead is only 3 ppm, 1 ppm tungsten and gold are very rare, which is about 0.005 ppm.

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