- Spreading centers in the Gulf, like this one in Farallon, are different from more well known spreading axes like the Mid-Atlantic Ridge and East Pacific Rise, since they form as deep rift valleys rather than bathymetric highs.
- It has been hypothesized that the above structural heterogeneity, in particular the subducting paleo-arc crust and its associated bathymetric highs, is one reason why earthquakes in this region are not larger i . e . exceeding Mw 8.0.
- The Chukchi Borderland, which comprises the subsea region north of the Alaskan coast as well as the bathymetric highs of the Chukchi Plateau and the adjacent Northwind Ridge, is a continental fragment that is thought to have drifted from the Canadian continental margin.