Noah Planavsky, Olivier J Rouxel, Andrey Bekker, Axel Hofmann, Crispin TS Little, Timothy W Lyons

2012/3/1

Geochimica et Cosmochimica Acta

80

158-169

Pergamon

Fe isotopes can provide new insight into redox-dependent biogeochemical processes.
Precambrian iron formations (IF) are deserving targets for Fe isotope studies because they
are composed predominantly of authigenic Fe phases and record a period of
unprecedented iron deposition in Earth's history. We present Fe isotope data for bulk
samples from 24 Archean and Proterozoic IF and eight Phanerozoic Fe oxide-rich deposits.
These data reveal that many Archean and early Paleoproterozoic iron formations were a ...