@article{67db379e4e6048218c4da917f31e5d29,
title = "Trace element and isotopic characterization of Neoarchean and Paleoproterozoic iron formations in the Black Hills (South Dakota, USA): Assesment of chemical change during 2.9-1.9 Ga bracketing the 2.4-2.2 Ga first of atmospheric oxygen",
author = "Robert Frei and \{Peter S.\}, Dahl. and Duke, E.F. and Frei, \{Karin Margarita\} and Hansen T.R. and Frandsson M.M. and \{L. S.\}, Jensen",
year = "2008",
doi = "10.1016/j.precamres.2007.10.005",
language = "English",
volume = "162",
pages = "441--474",
journal = "Precambrian Research",
issn = "0301-9268",
publisher = "Elsevier B.V.",
}