RT Book, Section T1 Cenozoic volcanisme II: the Canary islands A1 Carracedo, Juan Carlos A1 Ancochea Soto, Eumenio A1 Pérez Torrado, Francisco José A1 Meco, Joaquín A1 Hernán, Francisco A1 Cubas, Carmen Rosa A1 Casillas, Ramón A1 Rodríguez Badiola, Eduardo A1 Ahijado, Agustina AB The Canarian archipelago comprises seven main volcanic islands and several islets that form a chain extending for c. 500 km across the eastern Atlantic, with its eastern edge only 100 km from the NW African coast. The islands have had a very long volcanic history, with formations over 20 million years old cropping out in the eastern Canaries. Thus all stages of the volcanic evolution of oceanic islands, including the submarine stage as well as the deep structure of the volcanoes, can be readily observed. Rainfall and vegetation cover are relatively low, with the exception of the island of La Palma, favouring both geological observation and rock preservation. Furthermore, the absence of surface water has promoted groundwater mining by means of up to 3000 km of subhorizontal tunnels (locally known as ‘galerías’). These galerías are especially numerous in Tenerife, La Palma and El Hierro, and allow the direct observation and sampling of the deep structure of the island volcanoes without requiring expensive and indirect geophysical methods. PB Geological Society of London SN 978-1-86239-127-7 YR 2002 FD 2002 LK https://hdl.handle.net/20.500.14352/61009 UL https://hdl.handle.net/20.500.14352/61009 LA eng DS Docta Complutense RD 7 abr 2025