The Galapagos Islands Volcanic Formations - In the Gal√°pagos area volcanoes have formed a platform that connects the Carniege Chain in the east in which most of the islands are located, especially in the central area and south of the archipelago.
The dept of the water over the platform is 59-500 meters but on the south, southeast and western side there are abrupt falls which reach the bottom of the sea at depths of 3,000 meters and more.
The ‚Äúravines‚ÄĚ form barriers against the main south-east currents and especially the subsurface current which comes from the west and which results in the formation of outcroppings of marine life.
The event both in the life of the islands along the Equatorial line is in not found in any other part of the world and in the case of the Gal√°pagos is the location of the hot spot with volcanic eruptions throughout time that have formed the unique climate, fauna and flora conditions.
Most of the Gal√°pagos coast and marine bottom are made up of lava and, on a small scale, tuffs.
Sands on the beaches have a biogenic and volcanic origin. As a result of the cooling of the magma mass produced in constant volcanic eruptions, the rocky basalt coasts reflect a variety of shapes, from flat surfaces to systems of bays, coves, trenches, cracks, straits, excavations and cavities of all orders and sizes.
One characteristic of the underwater areas of the islands is the accentuated relief:¬† the sharp overhangs allow the infracoastal zone to convert to the batial zone in a space of a few miles.