2012
DOI: 10.1016/j.epsl.2011.11.020
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The composition of Earth's oldest iron formations: The Nuvvuagittuq Supracrustal Belt (Québec, Canada)

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Cited by 105 publications
(54 citation statements)
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“…Although life may have appeared only a few hundred million years after Earth's accretion (e.g., Lopez-Garcia et al 2006), sedimentary rocks older than~3,850 Ma (Nutman et al 1996;Ishizuka 2008;Nutman et al 2010;O'Neil et al 2011;Mloszewska et al 2012), where biotic events are most likely to be imprinted, are uncommon on Earth. Yet, potential traces of life (e.g.…”
Section: The Setting For Early Lifementioning
confidence: 99%
See 1 more Smart Citation
“…Although life may have appeared only a few hundred million years after Earth's accretion (e.g., Lopez-Garcia et al 2006), sedimentary rocks older than~3,850 Ma (Nutman et al 1996;Ishizuka 2008;Nutman et al 2010;O'Neil et al 2011;Mloszewska et al 2012), where biotic events are most likely to be imprinted, are uncommon on Earth. Yet, potential traces of life (e.g.…”
Section: The Setting For Early Lifementioning
confidence: 99%
“…Other putative biosignatures older than 3,500 Ma (carbonaceous spherules associated with apatite globules; see McKeegan et al 2007;Papineau et al 2010aPapineau et al , 2010b are also controversial (see Myers 2001;van Zuilen et al 2002;Fedo and Whitehouse 2002;Papineau et al 2011) and may not imply a syngenetic timing of formation with the host rock. Biosignatures of particular interest would be those associated with biogenic banded iron formations (e.g., Dauphas et al 2004;Trendall and Blockley 2004;Kappler et al 2005;Konhauser et al 2005;Koehler et al 2010;Mloszewska et al 2012) given their potential antiquity of~4,300 Ma (O'Neil et al 2009). …”
Section: The Setting For Early Lifementioning
confidence: 99%
“…López-García et al, 2006), el registro sedimentario más antiguo (donde los eventos bióticos son más propensos a ser conservados) no sobrepasa los ~3850 Ma (Nutman et al, 1996;Ishizuka, 2008;Nutman et al, 2010;O'Neil et al, 2011;Mloszewska et al, 2012). Y aún en este registro tan antiguo, potenciales biofirmas (carbonatos precipitados biogénicamente) pudieran estar presentes (Nutman et al, 2010), lo cual sugiere que la biósfera podría ser varios millones de años más antigua que los estromatolitos y microfósiles más antiguos conocidos (~3500 Ma).…”
Section: El Escenario De La Vida Tempranaunclassified
“…Firmas biológicas de particular interés son las asociadas a las llamadas Banded Iron Formations (i.e. Dauphas et al, 2004;Trendall y Blockley, 2004;Kappler et al, 2005;Konhauser et al, 2005;Koehler et al, 2010;Mloszewska et al, 2012) debido a su potencial antigüedad de ~4300 Ma (O'Neil et al, 2009).…”
Section: El Escenario De La Vida Tempranaunclassified
“…These include relatively high Ni and Zn concentrations found in the 3.75 Ga Nuvvuagittiq IF, Canada (Mloszewska et al, 2012) and Ni enrichments considered to be primary in origin in the IF of the Mesoarchean Witwatersrand Supergroup in South Africa (Smith et al, 2013).…”
Section: Introductionmentioning
confidence: 98%