Ocean bank

There are some banks that were reported in the 19th century by navigators, such as Wachusett Reef, whose existence is doubtful.

In tropical areas some banks are submerged atolls.

[1] Seamounts, by contrast, are mountains rising from the deep sea and are steeper and higher in comparison to the surrounding seabed.

[2] Examples of these are Pioneer and Guide Seamounts, west of the Farallon Islands.

The Pioneer Seamount has a depth of 1,000 meters,[2] In other cases, parts of a bank may reach above the water surface, thereby forming islands.