Closing the geologic carbon cycle.
carbon burial
carbon cycle
weathering
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
15 Oct 2024
15 Oct 2024
Historique:
medline:
7
10
2024
pubmed:
7
10
2024
entrez:
7
10
2024
Statut:
ppublish
Résumé
Estimates of sedimentary organic carbon burial fluxes based on inventory and isotope mass balance methods have been divergent. A new calculation of the isotope mass balance using a revised assessment of the inputs to the ocean-atmosphere system resolves the apparent discrepancy. Inputs include weathering of carbonate and old kerogen, geogenic methane oxidation, and volcanic and metamorphic degassing. Volcanic and metamorphic degassing comprise ≈23% of the total C input. Inputs from isotopically light
Identifiants
pubmed: 39374393
doi: 10.1073/pnas.2409333121
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2409333121Subventions
Organisme : Agence Nationale de la Recherche (ANR)
ID : ANR-17-MPGA-009
Organisme : NSF | GEO | Division of Earth Sciences (EAR)
ID : 2141989
Déclaration de conflit d'intérêts
Competing interests statement:The author declares no competing interest.