Oceanic basin an active - and growing - oceanic basin include an elevated mid-ocean ridge, flanking abyssal hills leading down to abyssal plains. The elements of an active oceanic basin often include the oceanic trench associated with a subduction zone. The Atlantic ocean and the Arctic ocean are good examples of active, growing oceanic basins, whereas the Mediterranean Sea is shrinking. The Pacific Ocean is also an active, shrinking oceanic basin, even though it has both spreading ridge and oceanic trenches. Perhaps the best example of an inactive oceanic basin is the Gulf of Mexico, which formed in Jurassic times and has
HNoMS Fridtjof Nansen (F310) with two ultra-fast RHIBs as a replacement. In November 2009 she became involved in a fire-fight with suspected pirates after being attacked while inspecting a fishing vessel. In 2014, "Fridtjof Nansen" took part in the naval exercise RIMPAC 2014 in the Pacific Ocean. During the exercise, she used a Naval Strike Missile to sink the , a decommissioned U.S. Navy amphibious transport dock, as a target 55 nautical miles northwest of Hawaii on 10 July 2014. HNoMS Fridtjof Nansen (F310) HNoMS "Fridtjof Nansen" is a frigate of the Royal Norwegian Navy. Launched on 5 April 2006, she is the lead