Articles | Volume 20, issue 21
https://doi.org/10.5194/bg-20-4433-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-4433-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Nov 2023
Research article |
| 07 Nov 2023
| 07 Nov 2023
Climatic controls on leaf wax hydrogen isotope ratios in terrestrial and marine sediments along a hyperarid-to-humid gradient
Nestor Gaviria-Lugo
CORRESPONDING AUTHOR
GFZ German Research Centre for Geosciences, Potsdam, Germany
Charlotte Läuchli
Institute of Geological Sciences, Free University of Berlin, Berlin, Germany
Hella Wittmann
GFZ German Research Centre for Geosciences, Potsdam, Germany
Anne Bernhardt
Institute of Geological Sciences, Free University of Berlin, Berlin, Germany
Patrick Frings
GFZ German Research Centre for Geosciences, Potsdam, Germany
Mahyar Mohtadi
MARUM-Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
Oliver Rach
GFZ German Research Centre for Geosciences, Potsdam, Germany
Dirk Sachse
GFZ German Research Centre for Geosciences, Potsdam, Germany
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Short summary
We analyzed how leaf wax hydrogen isotopes in continental and marine sediments respond to climate along one of the strongest aridity gradients in the world, from hyperarid to humid, along Chile. We found that under extreme aridity, the relationship between hydrogen isotopes in waxes and climate is non-linear, suggesting that we should be careful when reconstructing past hydrological changes using leaf wax hydrogen isotopes so as to avoid overestimating how much the climate has changed.
We analyzed how leaf wax hydrogen isotopes in continental and marine sediments respond to...
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