Figure 5: Benthic Fe flux prediction from C oxidation rates.
From: Distinct iron isotopic signatures and supply from marine sediment dissolution
Comparison of pore water O2 concentration versus depth profiles with model fits to data from steady-state pore water O2 consumption by organic C oxidation44. The corresponding rates of organic C oxidation are used to predict benthic fluxes of Fe from the Cape margin based on correlated C oxidation and Fe flux observations from the California margin8. However, despite comparable rates of organic C oxidation between these regions, this approach predicts benthic Fe fluxes higher than calculated from pore water Fe data in this study.
