Glaciation-Influenced Debris Flow Deposits: East Greenland Slope

Debris flow deposits dominate the acoustic profiles of the East Greenland continental slope (Figures 1 and 2). Huntec Deep Tow Seismic (DTS)® and 10 in3 sleeve gun provided the seismic source signatures. Huntec data recorded by the internal hydrophone were prefiltered between 1.0 and 6.0 kHz and digitized by the Ferranti SE880 at 50 µsec (20 kHz) with a data window of 400 to 500 µsec (i.e. between 8000 to 10000 samples per shot trigger). The boomer source was an ED10F/C powered by 4 kv (560 joules). The sleeve gun data were prefiltered between 100 and 1500 kHz and digitized by the Ferranti SE880 at 200 µsec (5 kHz) with a data window of 1 and 2 sec (at 5000 to 10000 samples per shot trigger). Details of the methodology are well described in Asprey et a 1. (1994).