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Stromatolites, cauliflower-shaped carbonate rocks that are found in abundance in geological formations, including ones that are several billion years old, show definite evidence of ancient biological activity. This has just been shown by researchers, thanks to detailed analysis of 2.7 billion-year-old rocks from cores drilled in Australia. picked by AutumnLotus 8 months ago tags oldest traces mineralization micro organisms stromatolites carbonate |
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