BODC Cruise Metadata Report for RRS James Cook (740H) cruise JC045 (JC046)
Introduction
This report collates information from the BODC cruise inventory and oceanographic databases. It presents
- Cruise Inventory Information
- A summary of BODC data holdings for the cruise from the
- References - including cruise tracks and cruise reports
Cruise Inventory Information
| Long name | RRS James Cook (740H) cruise JC045 (JC046) |
|---|---|
| Short name | JC045 (JC046) |
| Objectives and Narrative |
The first objective was to provide the key site survey information (3-d seismic data and/or additional 2-d seismic crossing lines) for drill sites CARI-02, CARI-03 and CARI-04 located offshore from the island of Montserrat in the Lesser Antilles for IODP Proposal 681.
The second objective was to produce an unusually detailed survey of submarine volcanic debris avalanche deposits resulting from large scale slope failure on (or around) Montserrat, in order to understand the origin and emplacement dynamics of these landslides. The data collected include the first 3-d seismic data set for such submarine volcanic debris avalanches, as well as a TOBI side scan survey, 2-d seismic reflection profiling with airgun and boomer sources, multibeam bathymetry, and sub-bottom (CHIRP) profiler data. An additional objective was to better understand how volcanic material from the ongoing eruption of the Soufriére Hills volcano (1995 to present) is redistributed around Montserrat. Marine sediments often provide a more complete record of eruption chronologies than sediments on land. This continues previous work that has linked near surface marine layers with eruptions that have been well monitored on land. This includes a comprehensive collection of shallow sediment cores from around the island, whose geometry is further constrained by sub-bottom profiler data collected during this cruise. Multibeam bathymetry and gravimetric data were collected throughout the cruise, with the multibeam data including the off-shelf deposits from a volcanic dome collapse in February 2010. |
| Ship | RRS James Cook |
| Departure Port | Montego Bay, Jamaica |
| Departure Date | 2010-04-24 |
| Arrival Port | St. John's, Antigua and Barbuda |
| Arrival Date | 2010-05-12 |
| Principal Scientist(s) | Peter J Talling (National Oceanography Centre, Southampton) |
| Responsible Organisation | National Oceanography Centre, Southampton |
| Associated Project(s) | UKIODP (NERC-funded) |
| IHB Sea Areas Visited | Caribbean Sea |
| Marsden Squares Visited | 43 |
| Work Area Description | Offshore SE Montserrat in the Lesser Antilles - in the Bouillant |
| Unable to lookup cruise bounds at this time | |
| Work Area Bounding Polygon | |
| Southern Limit | unknown |
| Northern Limit | unknown |
| Western Limit | unknown |
| Eastern Limit | unknown |
Cruise Inventory Datasets
| Geology and geophysics | |
|---|---|
| Gravity measurements |
Quantity:
activity duration in days =
19
Description: Gravity data |
| Long/short range side scan sonar |
Quantity:
track kilometres =
159
Description: TOBI (27-30 kHz) sidescan sonar |
| Multi-beam echosounding |
Quantity:
track kilometres =
1606
Description: Multibeam Bathymetry |
| Multichannel seismic reflection |
Quantity:
track kilometres =
722
Description: 3-d seismic survey with 2-GI airgun source |
| Multichannel seismic reflection |
Quantity:
track kilometres =
176
Description: 2-d seismic data lines with Boomer source |
| Multichannel seismic reflection |
Quantity:
track kilometres =
418
Description: 2-d seismic lines with 2-GI airgun source |
| Single-beam echosounding |
Quantity:
track kilometres =
1430
Description: Sub-bottom Profiler (SBP 120) |
Cruise Inventory Mooring/Buoy Operations
No information on datasets is currently available
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
No data currently held for this cruise in the BODC National Oceanographic Database
Project Database
No data currently held for this cruise in the BODC Project Database
