Gino/Team Castor
On 28 April 1979, the Liberian oil tanker Gino, transporting 40,000 tonnes of carbon black, a refined oil 1.09 times denser than water, was en route from Port Arthur (Texas) to Le Havre, when she sank off Ushant island after colliding with the Norwegian oil tanker Team Castor in foggy conditions.
About 1,000 tonnes of oil were spilled from a damaged tank in the Team Castor. 17 antipollution vessels poured dispersants on the oil slick.
The Gino sank 120 metres deep, taking her cargo with her. Despite its viscosity, the carbon black spread into the surrounding water.
A submarine was sent to survey the wreck and take some photographs. For many months, observation operations of the oil movement in the depths of the sea were led by the French Navy.