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Victoria University Antarctic Research Expedition Science and Logistics Reports 2001-02: VUWAE 46

McMurdo Ice Shelf Seismics

McMurdo Ice Shelf Seismics

Figure 7 shows the brute stack of the data. At the north-western end of the line the data is similar to that observed by Bannister (1993) and Melluish et al. (1995) from the Hut Point peninsula seismic line (HPP-1; Fig. 3). The seafloor is relative flat for 4000m and rises from c. 900m to the SE, to less than 320m depth over the northern bathymetric extension of White Island, before deepening again to 660m at the end of the line. High-frequency page 13 sedimentary reflections with up to 5m resolution are visible to 1.5 s below the sea floor. Sea floor multiples are observed for most of the seismic line. These multiples become a problem only at the SE end of the line.