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