F1. Bathymetric map of the continental margin west of the Antarctic peninsula.
F2. Multichannel reflection seismic profile across the seaward end of Drift 7.
F3. Sample preparation scheme.
F4. Layout of the laser particle sizer.
F5. Size classes and differences in frequency spectra plots.
F6. Contour plots of the fine-fraction data.
F7. Frequency response and resolution the filter algorithm.
F8. Statistical grain-size data for the <63-µm data set.
F9. Statistical grain-size data for the sortable silt fraction.
F10. Bivariant discrimination plots of statistical parameters.
F11. Calculated average grain-size distributions.
F12. Downhole plots of the three sortable silt populations.
T1. Grain-size classes.
Figures F1-F12
Table T1
