Abstract
Gran Canaria is the third-largest island of the Canary archipelago, after Tenerife and Fuerteventura, and the second-largest in population after Tenerife. The island is approximately circular in shape, approximately 45km in diameter, and rises to an altitude of approximately 1950meters above sea level (masl). This configuration led to the formation of a set of deep radial barrancos and canyons. The southwest and older part (Palaeocanaria) is formed by the Miocene volcanics, whereas the younger northeast portion (Neocanaria) concentrates the Plio-Quaternary rejuvenation volcanism. The central part of Gran Canaria is occupied by what can be considered the most distinct geological feature of the island, the Miocene Tejeda collapse caldera, with its abundant intracaldera and extracaldera ignimbrites, its central cone-sheet swarm, and syenite stocks that were emplaced into a late Miocene stratovolcano that formed inside the caldera. Gran Canaria is likely one of the most comprehensively studied oceanic islands in the world, displaying a unique set of outcrops. Erosion carved deep radial canyons that now allow “vertical” inspection of the successive volcanic stages of the island and allows an in-depth assessment of the temporal evolution of ocean islands development.
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