Extended Data Fig. 1: Vent fluid end-member estimation.
From: Mercury fluxes from hydrothermal venting at mid-ocean ridges constrained by measurements
a, least squares estimation of the vent fluid end-member from TAG. Vent fluids samples in purple, seawater in blue, and estimated vent fluid end-member in black. b, table with the location of the vent fluids taken at the TAG active mound. *Vent fluid end-member Mg concentration18.**Seawater Mg concentration45.+Vent fluid end-member tHg concentration from the least squares calculation.++Seawater Hg concentration median of the Atlantic Ocean without doubtful data46,47,48,49,50,51,52,53 (see Extended Data Fig. 2).
