Validation of carbon isotope fractionation in algal lipids as a pCO2 proxy using a natural CO2 seep (Shikine Island, Japan)

Witkowski, Caitlyn R.; Agostini, Sylvain; Harvey, Ben P.; van der Meer, Marcel T. J.; Sinninghe Damsté, Jaap S.; Schouten, Stefan

doi:https://doi.org/10.5194/bg-16-4451-2019

Articles | Volume 16, issue 22

https://doi.org/10.5194/bg-16-4451-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-16-4451-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 22

Research article

|

25 Nov 2019

Research article |

| 25 Nov 2019

Validation of carbon isotope fractionation in algal lipids as a pCO₂ proxy using a natural CO₂ seep (Shikine Island, Japan)

Caitlyn R. Witkowski, Sylvain Agostini, Ben P. Harvey, Marcel T. J. van der Meer, Jaap S. Sinninghe Damsté, and Stefan Schouten

Supplement

https://doi.org/10.5194/bg-16-4451-2019-supplement

Data sets

3D Gravity Constrained Model of Density Distribution Across the Alpine Lithosphere C. Spooner, M. Scheck-Wenderoth, H. J. Götze, J. Ebbing, and G. Hetényi https://doi.org/10.5880/GFZ.4.5.2019.004

Short summary

Carbon dioxide concentrations (pCO₂) in the atmosphere play an integral role in Earth system dynamics, especially climate. Past climates help us understand future ones, but reconstructing pCO₂ over the geologic record remains a challenge. This research demonstrates new approaches for exploring past pCO₂ via the carbon isotope fractionation in general algal lipids, which we test over a high CO₂ gradient from a naturally occurring CO₂ seep.