Fig. 1: Maps showing the location and bathymetry of the three study sites along the West Antarctic Peninsula.
From: Antarctic glaciers export carbon-stabilised iron(II)-rich particles to the surface Southern Ocean

Panel (a) shows the broad West Antarctic region, with the three study sites marked by pink dots and the Palmer Long Term Ecological Research (LTER) lines used in this study marked with dark grey dots. Panels (b−d) show the smaller scale regions from north (King George Island), central (Anvers Island) to south (Adelaide Island), with the location of particle collection for X-ray Absorption Near Edge Structure (XANES) marked in pink. The pie charts indicate the Fe(II) and Fe(III) classification of all particles measured at each site. Classification categorisation is described in the methods, following Bourdelle et al.78. The maps were created using open-source mapping software QGIS. The bathymetry is ETOPO 2022 at 30 arc-second resolution (NOAA National Centers for Environmental Information. 2022) and the coastline data is from the SCAR Antarctic Digital Database, 2023.