High-resolution multichannel seismic profile crossing Le Gouic Seamount during METEOR cruise M146

DOI

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.

Identifier
DOI https://doi.org/10.1594/PANGAEA.919699
Related Identifier https://doi.org/10.3389/fmars.2021.617927
Related Identifier https://doi.org/10.1594/PANGAEA.893939
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.919699
Provenance
Creator Lenz, Kai-Frederik ORCID logo; Krastel, Sebastian ORCID logo
Publisher PANGAEA
Publication Year 2020
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 8 data points
Discipline Earth System Research
Spatial Coverage (-21.374W, 22.837S, -21.135E, 23.217N)
Temporal Coverage Begin 2018-03-26T20:03:00Z
Temporal Coverage End 2018-03-27T05:12:00Z