The J-Anomaly Ridge is a bathymetric feature in the North Atlantic Ocean, extending southwest from the eastern end of the

Grand Banks of Newfoundland The Grand Banks of Newfoundland are a series of underwater plateaus south-east of the island of Newfoundland on the North American continental shelf. The Grand Banks are one of the world's richest fishing grounds, supporting Atlantic cod, swordf ...

. It has a length of about and rises above the general level of the

Sohm Abyssal Plain The Sohm Abyssal Plain An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between and . Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% o ...

. The ridge consists of anomalously thick oceanic crust that formed as a result of a major volcanic pulse during the Cretaceous.

References

External links

* * Underwater ridges of the Atlantic Ocean Volcanism of Newfoundland and Labrador Cretaceous volcanism Oceanography of Canada {{Newfoundland-geo-stub