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Lüdmann, Thomas; Betzler, Christian; Lindhorst, Sebastian (2022): Multichannel reflection seismics during RV METEOR cruise M74/4, Maldivian carbonate platform [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943828, In: Lüdmann, T et al. (2022): Hydroacoustic and seismic data from the Maldivian carbonate platform acquired during the years 2007-2014 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.943834

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Published: 2022-05-09 • DOI registered: 2022-06-22

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Abstract:
Multi-channel reflection seismic data (MCS) were obtained by means of a 144-channel digital streamer (Hydroscience Technologies Inc.) with an active length of 600 m and a hydrophone-group interval of 4.167 m. The streamer was depth controlled by four navigator birds (Geospace Technologies) and towed at a water depth of 2 to 2.5 m. As seismic source, an array consisting of a standard GI gun and a mini GI gun was used with a total volume of 150+45 in3. The airguns shot with a pressure of 180 to 200 bar every 12.5 m or 16.7 m at a survey speed of 5 to 5.5 kn. Data were sampled with a rate of 1 ms and a record length of 4 s and were stored SEG-Y format. The profiles are fully processed and time migrated by the use of the Halliburton-Landmark ProMAX 2D software package.
Keyword(s):
Indian Ocean; Maldives; multi-channel seismic reflection
Related to:
Lüdmann, Thomas; Betzler, Christian; Lindhorst, Sebastian (2022): The Maldives, a key location of carbonate drifts. Marine Geology, 450, 106838, https://doi.org/10.1016/j.margeo.2022.106838
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03G0667A: NEOMA - The Neogene of the Maldives
Coverage:
Median Latitude: 4.900418 * Median Longitude: 73.054007 * South-bound Latitude: 4.867533 * West-bound Longitude: 72.833795 * North-bound Latitude: 4.933303 * East-bound Longitude: 73.274220
Date/Time Start: 2007-11-30T18:51:00 * Date/Time End: 2007-12-12T05:13:00
Event(s):
M74/4_0_Underway-4 * Latitude Start: 4.867533 * Longitude Start: 73.274220 * Latitude End: 4.933303 * Longitude End: 72.833795 * Date/Time Start: 2007-11-30T18:51:00 * Date/Time End: 2007-12-12T05:13:00 * Campaign: M74/4 (NEOMA: The Neogene of the Maldives) * Basis: Meteor (1986) * Method/Device: Multichannel seismics (MCSEIS)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Binary ObjectBinaryLüdmann, Thomas
2Start of data file recording, date/timeFile start date/timeLüdmann, Thomas
3Start of data file recording, latitudeFile start latitudeLüdmann, Thomas
4Start of data file recording, longitudeFile start longitudeLüdmann, Thomas
5Stop of data file recording, date/timeFile stop date/timeLüdmann, Thomas
6Stop of data file recording, latitudeFile stop latitudeLüdmann, Thomas
7Stop of data file recording, longitudeFile stop longitudeLüdmann, Thomas
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
56 data points

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