Iron Isotope Fractionation Variation in Ordinary Chondrite Meteorites

Iron is the ninth most abundant element in the universe and readily forms alloys and complex ions with other elements so it is commonly found in most rock forming minerals like silicates, sulphates and carbonates. On Earth it exists in two oxidation states; Fe2+ in reducing environments and Fe3+ in oxygen rich conditions.

Core formation of planetary bodies

Allterrestrial planets and many asteroids in our solar system underwent differentiation to segregate a metallic core. The only samples of such cores that are available for laboratory studies are iron meteorites, which are believed to be fragments of cores from asteroids.

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