1.
(Table S1) Concentrations of brGDGTs for each sample set along the Tagus transect
2.
(Table 3) Bulk organic geochemical data of marine surface sediments collected in the Tagus River basin
(Table 2) Age model of Tagus river samples
(Table 3) Concentrations of GDGTs and brGDGT-based indices for each sample set along the Tagus transect
(Table 2) Portuguese continental margin surface sediment bulk geochemistry
(Appendix 6) Concentrations of CL and IPL-derived isoGDGTs normalized to OC and BIT values for marine surface sediments