Hadal zone
Deepest region of the ocean lying within oceanic trenches / From Wikipedia, the free encyclopedia
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"Hadal" redirects here. For the album by Velcra, see Hadal (album).
The hadal zone, also known as the hadopelagic zone, is the deepest region of the ocean, lying within oceanic trenches. The hadal zone ranges from around 6 to 11 km (3.7 to 6.8 mi; 20,000 to 36,000 ft) below sea level, and exists in long, narrow, topographic V-shaped depressions.[1][2]
The cumulative area occupied by the 46 individual hadal habitats worldwide is less than 0.25% of the world's seafloor, yet trenches account for over 40% of the ocean's depth range.[3] Most hadal habitat is found in the Pacific Ocean, the deepest of the conventional oceanic divisions.[3]