28 September 2012
Map of Cruise Progress (as of 28 September)
on the Weatherbird’s work deck |
as the last of 24 multicore tubes were processed.
The mud soirées have resumed as we wind down our sampling activities. Previously today, we completed an extensive photosurvey of Seep-C. This is a natural hydrocarbon seep situated on a mile-wide mound that rises in a plateau almost 200 m above the surrounding seabed. We did our most sophisticated work to date with the MILET platform as we were able to complete 1 km long tracks over the mound, then fly the MILET up in the water while the ship came around to a new course, and finally play out cable to bring the vehicle in on track on the top of the mound. This would not have been possible without the superb bathymetry collected for us by the Okeanus Explorer because we needed to have confidence that we would not hit the bottom turns and that we knew when we would begin to approach the bottom as we brought the vehicle on track.
|Samira and Arvind log core photographs |
and descriptions while Chris offers advice.
|Samantha, Patrick, Chris, and Nikki: happy to only have one more coring site to go.|
Samantha does double duty working on both sediment and water samples.
|Nikki, Patrick, and Chris.|