Biogeochemical processes captured by carbon isotopes in redox-stratified water columns: a comparative study of four modern stratified lakes along an alkalinity gradient
Biogéosciences, CNRS, Université Bourgogne
Franche-Comté, 21000 Dijon, France
Christophe Thomazo
Biogéosciences, CNRS, Université Bourgogne
Franche-Comté, 21000 Dijon, France
Institut
Universitaire de France, 75005 Paris, France
Miguel Iniesto
Ecologie Systématique Evolution, CNRS, Université
Paris-Saclay, AgroParisTech, 91190 Gif-sur-Yvette, France
Didier Jézéquel
IPGP, CNRS, Université de Paris Cité, 75005 Paris, France
UMR CARRTEL, INRAE and USMB, 74200 Thonon-les-Bains, France
David Moreira
Ecologie Systématique Evolution, CNRS, Université
Paris-Saclay, AgroParisTech, 91190 Gif-sur-Yvette, France
Rosaluz Tavera
Departamento de Ecología y Recursos Naturales, Universidad
Nacional Autónoma de México, Mexico City,
México
Jeanne Caumartin
Institut de Minéralogie, de Physique des Matériaux
et de Cosmochimie (IMPMC), CNRS, Muséum National d'Histoire Naturelle, Sorbonne Université, 75005 Paris, France
Elodie Muller
Institut de Minéralogie, de Physique des Matériaux
et de Cosmochimie (IMPMC), CNRS, Muséum National d'Histoire Naturelle, Sorbonne Université, 75005 Paris, France
Purificación López-García
Ecologie Systématique Evolution, CNRS, Université
Paris-Saclay, AgroParisTech, 91190 Gif-sur-Yvette, France
Institut de Minéralogie, de Physique des Matériaux
et de Cosmochimie (IMPMC), CNRS, Muséum National d'Histoire Naturelle, Sorbonne Université, 75005 Paris, France
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We describe the C cycle of four modern stratified water bodies from Mexico, a necessary step to better understand the C cycle of primitive-Earth-like environments, which were dominated by these kinds of conditions. We highlight the importance of local external factors on the C cycle of these systems. Notably, they influence the sensitivity of the carbonate record to environmental changes. We also show the strong C-cycle variability among these lakes and their organic C sediment record.
We describe the C cycle of four modern stratified water bodies from Mexico, a necessary step to...
