Nuna supercontinent assembly linked to carbon cycling in shear zones 1.9–1.7 billion years ago

A peak in organic carbon burial approximately 2.1–1.8 billion years ago led to the prolific growth of graphite-rich orogens internal to the supercontinent Nuna. The temporal history of graphitic carbon in such orogens, however, is poorly understood, which limits our understanding of the timescales o...

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