Articles | Volume 16, issue 22
Biogeosciences, 16, 4451–4461, 2019
Biogeosciences, 16, 4451–4461, 2019

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 et al.

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

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.
Final-revised paper