From a stalagmite that grew 14,000–8,500 years ago, isotopic data provide a detailed history of groundwater infiltration associated with a strengthening North American monsoon, as the climate transitioned from a cool dry late-glacial period into a warmer and wetter Early Holocene.
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References
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This is a summary of: Lachniet, M. S. et al. Elevated Grand Canyon groundwater recharge during the warm Early Holocene. Nat. Geosci. https://doi.org/10.1038/s41561-023-01272-6 (2023).
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A Grand Canyon palaeoclimate record shows a strengthened Early Holocene monsoon. Nat. Geosci. 16, 839–840 (2023). https://doi.org/10.1038/s41561-023-01282-4
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DOI: https://doi.org/10.1038/s41561-023-01282-4
