Fe同位素地球化学进展

Fe同位素是近年来发展起来的一门新兴的同位素地球化学方法，影响Fe同位素分馏的因素主要有生物有机作用和无机作用两种方式，研究证明，生物有机过程可以使Fe同位素产生大的分馏效应，因此根据Fe同位素组成的变化可以推测古环境中生命活动的存在，在一定的条件下无机作用也可能产生大的分馏效应，并可用于研究沉积物源的变化和古海洋环境的演化，Fe同位素有可能成为地球科学中具有巨大应用前景的一种新的地球化学方法。

Recent Advances in Fe Isotope Geochemistry

Fe isotopes method is a recently developed innovative geochemical technique. Fractionation of Fe isotopes is controlled by biological and inorganic processes. Studies indicate that biological processes can significantly fractionate Fe isotopes, which in turn may be useful to trace the existence of biogenic activities in ancient environments. Under certain conditions, Fe isotopes can also be fractionated substantially by inorganic processes and this character demonstrate that Fe isotopes have great potential for the studies on change of oceanic sediment sources and evolution of paleoceanographic environments. It is expected that Fe isotopes method will become a new promising geochemical technique on earth sciences in the near future.