Different types of additional data can be helpful when it comes to describing the geology of the continental shelf. This is especially true for the classification of underwater ridges. We distinguish between oceanic ridges, submarine ridges and submarine elevations that are a natural component of the continental shelf.
The classification is important because different rules are used for the three types of ridges, and different types of geophysical and geological methods may be used here, e.g.:
- Gravimetry and magnetics
- Refraction seismology