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New Evidence That Photosynthesis May Have Existed More Than 2.15 Billion Years Ago

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From deep in the gold mines of South Africa’s Orange Free State has come evidence that there was some form of biologic activity on Earth at least 2.15 billion years ago. Polymerized hydrocarbon “chemo-fossils” found in the gold ores … [probably] were originally part of a rich bacterial and algal life in the Witwatersrand basin. Since the rock layers from which they come have been dated to about 2.15 billion years ago, it seems likely that photosynthesis existed on Earth before then.

Added on the 02/03/2017 13:43:14 - Copyright : Wochit

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