oceanic trench
C598
concept
An oceanic trench is a long, narrow, and extremely deep depression in the ocean floor, typically formed at convergent plate boundaries where one tectonic plate subducts beneath another.
Aliases (12)
- deepest point ×5
- subduction zone feature ×5
- oceanic trench feature ×4
- undersea depression ×4
- submarine depression ×3
- oceanic trench system ×2
- submarine trench ×2
- deep-sea depression ×1
- deep-sea feature ×1
- deepest point of Tonga Trench ×1
- deep‑sea depression ×1
- undersea trench ×1
Instances (52)
- Calypso Deep ("undersea depression")
- Brownson Deep ("undersea depression")
- Mariana Trench
- Challenger Deep ("undersea depression")
- Hellenic Trench
- South Sandwich Trench
- Japan Trench
- USS Milwaukee
- Milwaukee Deep ("oceanic trench feature")
- Arkona Basin ("submarine depression")
- Aleutian Trench
- Java Trench
- Molloy Deep
- Horizon Deep ("undersea depression")
- Tonga–Kermadec Arc ("oceanic trench system")
- Kermadec Trench
- Philippine Trench
- Ryukyu Trench
- Izu–Ogasawara Trench
- Manila Trench
- Horizon Deep (regionally associated in Tonga-Kermadec system, sometimes compared) ("oceanic trench feature")
- Sunda Trench
- Atacama Trench
- Middle America Trench
- Romanche Trench
- Sigsbee Deep ("deep-sea feature")
- Puerto Rico Trench
- Tonga Trench
- Palau Trench
- Sirena Deep ("oceanic trench feature")
- Cayman Trough
- Nankai Trough ("submarine trench")
- Greenland Basin ("submarine depression")
- Brownson ("undersea trench")
- Peru–Chile Trench region ("oceanic trench system")