Deepest Black Smoker Discovered in Caribbean

//

Over three miles down in the ocean, where the Caribbean Sea's warm blue waters fade into lightless black, scientists have found something bizarre and wonderful: the deepest active hydrothermal vent system on the planet.

The science crew aboard the Royal Research Ship James Cook are currently at sea exploring the Cayman Trough, the deepest ocean ridge on Earth. While diving last week, their state-of-the-art autonomous submarine, Autosub6000, discovered chemical indicators in the water column suggesting something was boiling down on the floor below.

The crew quickly dispatched another human-controlled robot to dive on the scene and look for smokers. After five hours of searching, the incredible vents rolled into view:

After a little further exploration, a tremendous roar went up in the main lab as a beautiful cluster of black smokers came into camera view. It was an amazing feeling to know that in a world with more than six billion people, we were seeing part of our planet that no-one had ever seen before (and now you can too, through the video below).

As incredible as the find itself are the details: the smokers spew water hot enough to melt lead. The smokers' waters are so packed with minerals that their two-story high chimneys are basically made of iron and copper ore. An and around the vents gardens of strange bacteria flourish.

One researcher, Bramley Murton of the National Oceanography Centre in Southampton, United Kingdom said of the scene:

It was like wandering across the surface of another world. The rainbow hues of the mineral spires and the fluorescent blues of the microbial mats covering them were like nothing I had ever seen before.

Source: RRS James Cook

Image: National Oceanography Centre