| Identifier | 2023-007-FA | ||||||||
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| Alternate names | MGL2306; Neogene Atlantic MTDs | ||||||||
| Purpose | Determine Neogene history of submarine landslide activity offshore North Carolina | ||||||||
| Location | US Atlantic Margin | ||||||||
| Summary | Collected 3,544-line kilometers of multichannel seismic reflection profiles, 4,430-line kilometers of Knudsen 3260 Chirp sub-bottom profiles, 4,340 line-kilometers of Kongsberg EM122 MBES bathymetry, as well as underway navigation, gravity, magnetics, ADCP, and XBT data during 26 days of survey. | ||||||||
| Info derived | Images of buried mass transport deposits | ||||||||
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| Organization |
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
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| Principal investigators | Nathaniel C Miller | ||||
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| Data category: | Location-Elevation, Sonar, Seismics |
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| Data type: | Navigation, Air Gun / Water Gun, Water column reflectivity, Multibeam, Sub Bottom Profiler, Multichannel |
| Equipment | Usage description | Data types | Datasets |
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| DGPS | Navigation | (no data reported) | |
| Air gun | 18-element, 3300 cu.in air gun array configured in two parallel 9-gun strings. | Air Gun / Water Gun | (no data reported) |
| Knudsen 3260 | KEL 3260 configured with a four-by-four, array of sixteen 3.5 kHz Massa TR-1075 transducers. | Sub Bottom Profiler | (no data reported) |
| Multichannel seismics | Sentinel Seal 428 digital streamer - configured in a 6 kilometer long active section with 528 channels. The near 96 channels (~600 meters) were 6.25 meter spaced groups and the trailing 432 channels (~5400 meters) were 12.5 meter spaced groups. | Multichannel | (no data reported) |
| EM122 12 kHz multibeam | Kongsberg EM-122 MBES. Acquire bathymetry along with sea floor and water column backscatter data. | Multibeam | (no data reported) |
| Simrad EK80 | USGS EK-80 wideband transceiver and ES-3810 split beam transducer pole mounted on starboard side of R/V Marcus Langseth. Acquire split beam water column backscatter data. | Water column reflectivity, Multibeam | (no data reported) |
| POS-MV | Navigation | (no data reported) |
