Unlike the ocean island volcano of Tenerife, with its shield and stratocone volcanoes and recent scoria cone eruptionsm which we know well by now, the F-island has remnants of submarine sediments deposited off the African coast in the Jurassic and Cretaceous as the Atlantic began to split apart. These are mixed in with submarine mid ocean ridge volcanics. Seamount(s) built up and, eventually, broke surface and built up as a shield volcano or three. An erosional phase followed, exposing much of the earlier seamount series including a ring complex of the associated plutonic rocks.
We are going to be based in Caleta de Fuste halfway down the east coast and close to the airport since that is a good jumping off point for both north and south parts of the island.
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