Although we do not exclude that some of the observed Moodies laminae were originally microbial mats, the mineral assemblage of the studied anastomosing and wavy laminae (i.e., mainly sericite associated with Ti oxide and rare carbonaceous material) shows a substantial metamorphic overprint, implying that similar laminae cannot be unambiguously associated with the concept of a flourishing Paleoarchean microbial life at 3.22 Ga.
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