Lenz, Kai-Frederik; Krastel, Sebastian (2020): High-resolution multichannel seismic profile crossing Le Gouic Seamount during METEOR cruise M146 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.919699
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Abstract:
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.
Supplement to:
Klügel, Andreas; Römer, Miriam; Wintersteller, Paul; Lenz, Kai-Frederik; Krastel, Sebastian; Villinger, Heinrich; Kaul, Norbert (2021): Bathymetric and Seismic Data, Heat Flow Data, and Age Constraints of Le Gouic Seamount, Northeastern Atlantic. Frontiers in Marine Science, 8, https://doi.org/10.3389/fmars.2021.617927
Further details:
Wintersteller, Paul (2018): Gridded bathymetry from multibeam echosounder EM122 data of METEOR cruise M146, Le Gouic Seamount [dataset]. MARUM - Center for Marine Environmental Sciences, University Bremen, PANGAEA, https://doi.org/10.1594/PANGAEA.893939
Coverage:
Median Latitude: 23.026642 * Median Longitude: -21.254667 * South-bound Latitude: 22.836600 * West-bound Longitude: -21.374417 * North-bound Latitude: 23.216683 * East-bound Longitude: -21.134917
Date/Time Start: 2018-03-26T20:03:00 * Date/Time End: 2018-03-27T05:12:00
Minimum Elevation: -4408.7 m * Maximum Elevation: -4344.1 m
Event(s):
M146_2-1 (GeoB22802-1) * Latitude Start: 22.836600 * Longitude Start: -21.374417 * Latitude End: 23.216683 * Longitude End: -21.134917 * Date/Time Start: 2018-03-26T20:03:00 * Date/Time End: 2018-03-27T05:12:00 * Elevation Start: -4408.7 m * Elevation End: -4344.1 m * Campaign: M146 * Basis: Meteor (1986) * Method/Device: Seismic (SEIS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File name | File name | Lenz, Kai-Frederik | |||
| 2 | File format | File format | Lenz, Kai-Frederik | |||
| 3 | File size | File size | kByte | Lenz, Kai-Frederik | ||
| 4 | Uniform resource locator/link to sgy data file | URL sgy | Lenz, Kai-Frederik |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
8 data points