The Faroe–Shetland Basin and adjacent areas
The Faroe-Shetland Basin (FSB) is a narrow but deep-rifted structure, trending NE-SW, with its orientation controlled by Caledonian basement thrusts. It lies between the Precambrian and Paleozoic Caledonian basement of the West Shetland Platform (part of the Orkney-Shetland Platform) and the Faroe Platform. It corresponds approximately to the topographical deep-water Faroe-Shetland Channel. It is bounded to the SW by the Sula Sgeir High and the Wyville-Thomson Ridge. The western margin lies under the flood basalts of the Faroe Platform and is imperfectly delimited. The NE margin is formed by the Erlend Central Complex (forming the Erlend Platform) (Figs 171 & 176).