Publication Date:
2024-04-17
Description:
A reflection seismic profile shot in SW-NE direction across the peak of Le Gouic Seamount. The profile is split in two parts. P101 images the SW part of Le Gouic Seamount, P102 images the NE part.
The seismic source was a standard Sercel GI-Gun (2 x 1.7 liters) shot in a harmonic mode. The injector of the gun was triggered with a delay of 50 ms with respect to the generator signal, which basically eliminated the bubble signal. The gun was operated with a pressure of 160 bar. The shooting interval was 5-9 seconds depending on water depth, resulting in a shot point distance of 10-18 m at 4 knots surveying speed.
The seismic signals were received by a digital Geometrics GeoEel streamer consisting of a tow cable (80 m, 40 m in water), one 10 m long vibration isolation section, 9 active sections of 12.5 m each, a vibration isolation section at the end of the streamer, and an end buoy. An active section contained eight channels (spacing of 1.56 m), resulting in 72 channels within the streamer. The processing included a band pass filter, a fk-filter, CMP-binning at 3.125 m bin distance, a static correction, a Normal-Move-Out correction with a constant velocity of 1500 m/s, stacking, and a finite differences time migration.
Keywords:
File format; File name; File size; GeoB22802-1; High-resolution multichannel seismic; Le Gouic Seamount; M146; M146_2-1; Meteor (1986); SEIS; Seismic; Uniform resource locator/link to sgy data file
Type:
Dataset
Format:
text/tab-separated-values, 8 data points
