The Dolphin Ridge refers to a segment of the Mid-Atlantic Ridge, which is a large submarine mountain range located in the Atlantic Ocean.
Specifically, the Dolphin Ridge is the northern part of this extensive ridge system, north of the equator.
The Mid-Atlantic Ridge, including the Dolphin Ridge, is significant because it represents the divergent boundary between the North American and Eurasian tectonic plates, where new oceanic crust is created through volcanic activity as the plates move apart.
What is known as the Dolphin Ridge, an enormous submarine plateau, stretching between 25 and 50 degrees north latitude and 20 to 50 degrees west longitude, is supposed to be its sunken remnants.