Geochemical and Visual Indicators of Hydrothermal Fluid Flow through a Sediment-Hosted Volcanic Ridge in the Central Bransfield Basin (Antarctica)
Figure 8
Interstitial fluid profiles for cores from the background site, Hook Ridge and Middle Sister.
Measured concentration-depth pore fluid profiles of Cl−, SO42−, Mg, NH4+, NO3−, H2S, CH4, Li, Ca and B in hydrothermally-influenced Hook Ridge cores MC7 and MC16 and non-hydrothermally-influenced background core and Middle Sister core MC24. Dashed lines represent Cl− profiles in MC7 and MC16 calculated using a one-dimensional diffusion-advection model; best fits were obtained by applying flow velocities of 9 cm yr−1 and 33 cm yr−1, respectively.