Microstructure-specific carbon isotopic signatures of organic matter from ∼3.5 Ga cherts of the Pilbara Craton support a biologic origin

•In situ carbon isotopic analysis of ∼3.5 Ga organic matter and coexisting carbonate.•δ13C values in specific organic microstructures range between −33.6‰ and −25.7‰.•The range of δ13C(OM) values represents primary variability of organic matter.•Correlation between δ13C values and microstructures ar...

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Veröffentlicht in:	Precambrian research 2016-04, Vol.275, p.429-449
Hauptverfasser:	Morag, Navot, Williford, Kenneth H., Kitajima, Kouki, Philippot, Pascal, Van Kranendonk, Martin J., Lepot, Kevin, Thomazo, Christophe, Valley, John W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon isotope ratio Dresser Formation Earth Sciences Geochemistry Microfossils Organic matter Pilbara craton Sciences of the Universe SIMS Stratigraphy
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