J-Anomaly Ridge

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. It has a length of about 400 km and rises 1200 m above the general level of the Sohm Abyssal Plain. The ridge consists of anomalously thick oceanic crust that formed as a result of a major volcanic pulse during the Cretaceous.