Wednesday 9th February

Today's contributor: Jon Copley

After the successful SHRIMP dive overnight, we completed our series of CTD probe deployments at the E9 vent field on the East Scotia Ridge, and then headed for the seafloor crater that we discovered in 2009 near the South Sandwich Islands.

The crater is two-and-a-half miles wide and a mile deep at its deepest point. It was completely unknown before we switched on our sonar during an expedition two years ago. And diving here last year with the Isis ROV, we found deep-sea vents on a small volcanic cone at the bottom of the crater.

On arriving at the crater today, we deployed the CTD probe again, to confirm that the vents in the crater are still active and compare with the signals that we recorded in previous years. Then we prepared for yet another SHRIMP dive overnight, while keeping a close eye on the weather...



January 2011

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February 2011

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