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Size distribution of carbonaceous spheroidal microstructures preserved in the 3.2-Gyr-old shales and siltstones of the Moodies Group, Barberton Greenstone Belt, South Africa. EJ Javaux et al. Nature 000 , 1 - 5 (2010) doi:10.1038/nature08 793.
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Size distribution of carbonaceous spheroidal microstructures preserved in the 3.2-Gyr-old shales and siltstones of the Moodies Group, Barberton Greenstone Belt, South Africa. EJ Javaux et al. Nature000, 1-5 (2010) doi:10.1038/nature08793