In a part of the Apennines, where the Earth’s crust is thin and heat flow is high, production of CO2 from deep below the mountains dominates over near-surface weathering processes that consume this greenhouse gas. Ultimately, the magnitude of deep CO2 release tips the balance towards a landscape that is a net carbon emitter.
References
Urey, H. C. On the early chemical history of the earth and the origin of life. Proc. Natl Acad. Sci. 38, 351–363 (1952). This paper discusses the chemical makeup of the early Earth and the conditions that could have produced an oxidized atmosphere capable of supporting life.
Torres, M. A. et al. The acid and alkalinity budgets of weathering in the Andes–Amazon system: Insights into the erosional control of global biogeochemical cycles. Earth Planet. Sci. Lett. 450, 381–391 (2016). This paper explores the links between tectonics and the long-term carbon cycle, highlighting the importance of CO2 release from sulfuric acid weathering of carbonate rock, as a buffer to CO2 drawdown from silicate weathering.
Hilton, R. G. & West, A. J. Mountains, erosion and the carbon cycle. Nat. Rev. Earth Environ. 1, 284–299 (2020). A review article on the interactions between mountain building and the carbon cycle, focusing on the primary mechanisms for CO2 drawdown and release in the near-surface environment.
Mörner, N.-A. & Etiope, G. Carbon degassing from the lithosphere. Glob. Planet. Change 33, 185–203 (2002). A review article that presents CO2 degassing estimates from deep, volcanic and non-volcanic sources, and their broad impact on the global CO2 budget.
Kerrick, D. M. & Caldeira, K. Metamorphic CO2 degassing from orogenic belts. Chem. Geol. 145, 213–232 (1998). A review article that assesses the magnitude of metamorphic CO2 degassing from mountain belts during the present and in the geologic past.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This is a summary of: Erlanger, E. et al. Deep CO2 release and the carbon budget of the central Apennines modulated by geodynamics. Nat. Geosci. https://doi.org/10.1038/s41561-024-01396-3 (2024).
Rights and permissions
About this article
Cite this article
Tectonics regulate CO2 release more strongly than chemical weathering in central Italy. Nat. Geosci. 17, 383–384 (2024). https://doi.org/10.1038/s41561-024-01397-2
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41561-024-01397-2
- Springer Nature Limited