King's Trough King's Trough King's Trough is an undersea trough in the Atlantic Ocean. It is located on the east side of the Mid-Atlantic Ridge, northwest of the Açores-Biscay rise and roughly 400 km NNE of the Azores. It is about 400 km long, running in a NW–SE direction. To the east it branches into the Peake Deep and Freen Deep. The center depth is 4500 m. Surrounding the trough are high ridges and seamounts, such as the Antialtair seamount and the Crum seamount complex. Various explanations for the complex have been suggested, ranging from compression a former plate-boundary, transform faulting or
Cayman Trough and extends offshore under the Pacific Ocean, where it intersects the Middle America Trench subduction zone. The relatively narrow trough trends east-northeast to west-southwest and has a maximum depth of . Within the trough is a slowly spreading north-south ridge which may be the result of an offset or gap of approximately along the main fault trace. The Cayman spreading ridge shows a long-term opening rate of The eastern section of the trough has been named the Gonâve Microplate. The Gonâve plate extends from the spreading ridge east to the island of Hispaniola. It is bounded on the north by