Figure 2
From: Unexpected biotic resilience on the Japanese seafloor caused by the 2011 Tōhoku-Oki tsunami
Sediment properties along the bathymetric transect.
Grain-size features (in μm) are expressed in D10 and D90 for all stations. Shaded zones are related to mixed sedimentary layers, determined from radionuclide profiles. Total 210Pb activity (expressed in Bq/g) is plotted. A video captured image of the seafloor at Station 2 (81 m depth) is inserted at the bottom. Shells belonging to shallow-water bivalves and gastropods (i.e. Amusium japonicum, Arca boureardi, Olivella fulgurata) are relatively abundant. Note also the spatial heterogeneity as clearly highlighted by the chaotic distribution of the numerous shell fragments and the coarsening upwards profile overlying finer sediments. Scale = external diameter of Plexiglas tube is ~8.5 cm.
