A chemical signature long read as evidence of a planet-wide change in Earth's carbon cycle may instead reflect local magma, hydrocarbons, and methane-eating microbes, researchers report.
Study Questions 2-Billion-Year-Old Carbon Signature as Record of Earth's Oxygen Shift
A chemical signature long read as evidence of a planet-wide change in Earth's carbon cycle may instead reflect local magma, hydrocarbons, and methane-eating microbes, researchers report.
List of rock formations · Wikimedia — licence per file · rights
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