Cruise inventory

RV Maurice Ewing RV Maurice Ewing Cruise EW9008

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Maurice Ewing (3230)
Cruise identifierRV Maurice Ewing Cruise EW9008
Cruise period1990-09-29 — 1990-10-26
StatusCompleted
Port of departureBergen, Norway
Port of returnNewark, United States
PurposeResearch
ObjectivesTo use the TOBI deeptow sidescan sonar system, in conjunction with Hydrosweep data, to evaluate the relationship between volcanic and tectonic processes on the Reykjanes Ridge, the 800 km section of the slow-spreading Mid-Atlantic Ridge (MAR) southwest of Iceland.

To assess the detailed geometry of the axial volcanic zone of the Reykjanes Ridge, the style of ridge segmentation and its spatial and temporal variations as a function of distance from the Iceland "hot-spot".

Additional objectives were intended to be addresses during transit to the MAR, including survey lines to examine bedforms and sediment distributary systems through the Faeroe Bank and Faeroe Shetland Channels.
Chief scientistLindsay M Parson (Institute of Oceanographic Sciences Deacon Laboratory)
ProjectSidescan sonar and swath bathymetry investigations of the Reykjanes Ridge
Cruise reportRV Maurice Ewing RV Maurice Ewing Cruise EW9008 cruise report maurice_ewing_sep90.pdf — access key 'C' (0.50 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
Track chartsRV Maurice Ewing RV Maurice Ewing Cruise EW9008 cruise track — maurice_ewing_sep90track.pdf (00 MB) 
Measurements 
Physical oceanography 
Subsurface temperature and salinity measurementsDescription: Hydrosweep swath bathymetry data was collected, but the quality was poor. No. of samples not noted.
Geology and geophysics 
Long/short range side scan sonarDescription: Sidescan sonar data was collected during the cuise. The quality still good despite poor weather. No. of profiles not noted.