CD 166: Investigating the underwater avalanches offshore Morocco


 


Daily diary

Saturday October 30th 2004


Aggie writes:

"Finally we are out on the open sea! As soon as the passage started we had the first seasickness casualties. You can’t really blame them, the sea was a bit rough outside Lisbon as it was the aftermath of a big storm. Very early on most people were in bed and not everyone showed up for dinner. Pete was feeling a bit ill until a big wave came over the deck and covered him in cold seawater – he said he felt much better after that! This morning the sea was much smoother and we were steaming to our first station in the Gulf of Cadiz. In the meantime the labs were being set up: Andrey booted up the computers, Doug and Micha constructed the core splitter, a few bits and bobs here and there…..After midday we recovered the first core of the cruise, which didn’t give itself up easily. Normally, to extrude the core from the metal core barrels, you just push the core liner from one end and drag it from the other. Once you have a 1.5 m length of section you cut it, seal it and continue until no core is left. In this case the core liner was stuck in the metal barrels and we had to use a hydraulic push. After lots of sweat and tears we eventually retrieved a little more than 2.5 m of sediment. Early analysis showed that the bottom of the core had penetrated muds going back to the last Ice Age, over 10,000 years ago...."


The most important piece of equipment in the lab – the table football!

How many scientists does it take to get a core out of the barrel?


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© Challenger Division for Seafloor Processes
October 2004
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