Figure 2: Regeneration incubation data.
Data for dissolved Cr concentrations (panel A), stable isotope composition (panel B) and redox speciation (panel D) are presented for regeneration incubation 3, along with macronutrients (PO4: panel E; Si(OH)4: panel F; NH4: panel H; NO2: panel I) and pMn (panel G). Incubation sample δ53Cr and [Cr] are shown over the global array of oceanic data with a trendline fit to all the data (Panel C), demonstrating the alignment of released Cr along the global distribution. The ambient temperature (4° C) treatment is shown as grey circles and the 1° C treatment as white circles, with the initial dissolved water shown as a black circle.