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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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Life On Earth Started 4.1 Billion Years Ago

Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon. 2015. PNAS UCLA geochemists have found evidence that life likely existed on Earth at least 4.1 billion years ago—300 million years earlier than previous research suggested. The discovery indicates that life may have begun shortly after the planet formed 4.54 billion years ago. The new research suggests that life existed

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