Relier Pairs Ocean Floor FeaturesVersion en ligne oceanic landforms par Taylor Tant 1 Rift/ Rift Zone 2 Abyssal Plain 3 Mid Ocean Ridge 4 Trench 5 Continental Shelf 6 Continental Slope The edge of the continent that is under water; shallow part of the ocean the center of the highest part of the mid-ocean ridge; it is a narrow trench large area of flat land on the ocean floor The steep slope where the continental shelf drops to the bottom of the ocean floor a steep-sided canyon with deep, narrow valleys in the bottom of the ocean. underwater volcanic mountains that divide the ocean floor into 2 parts