Table S1.

Relative efficiency of possible mechanisms for capturing particles from mantle-driven flow (adapted from ref. 26)

Particle typeDensity, g/cm3Diameter, μmNR/NINR/NGNR/NM
Bacterium1.07513.9×10644.10.3×103
Phytoplankton1.09550.6×1066.36.3×103
Polystyrene bead1.0517.8×10688.10.3×103
Polystyrene bead1.0541.9×10622.04.0×103