Special Characteristics of the volcano El Teide:
• The main characteristic of the Canarian volcano El teide is its prolonged activity over more than 50 million years.
• Almost the entire range of magmas and volcanic rocks can be found in the Canaries - Canary islands, and this is not the case in other volcanic regions.
• The Canaries represents a genuine museum of all the existing volcanic structures of different parts of the world.
• The Canary Islands are formed by two different complexes:
- A basal complex of submarine origin. This constitutes the ocean crust and is made up of many basalt defiles one on top of the other, alternating with layers of marine sediments.
- Volcanic structures of sub aerial origin. They are the product of the volcanic eruptions that began in the Miocene Period and continued until the present day, and have formed the different islands into the shapes we see today.
• The islands are composed of structures of volcanic origin lying on enormous blocks of ocean crust.
• Huge cliffs are common on the coasts. The Canaries is the Spanish region with the most extensive coastlines; 1,583 kilometers.
- Lava fields
• Situated in the calm magnetic zone of the passive African margin, the archipelago that forms the Canary Islands is a region with active volcanoes.
• There have been fourteen eruptions since the end of the 15th century.
• The materials emitted by these eruptions have covered wide surfaces, they have been channelled down some ravines, and occasionally, on reaching the sea, they have altered the coastline.