1.

(Table S1) Concentrations of brGDGTs for each sample set along the Tagus transect

1.

(Table 2) Age model of Tagus river samples

1.

(Table 3) Concentrations of GDGTs and brGDGT-based indices for each sample set along the Tagus transect

1.

(Table 2) Portuguese continental margin surface sediment bulk geochemistry