The most recent eruption in the Canary Islands was Teneguía, in 1971 (see Thursday, 21 February 2008 Which Planet Are You On?). It’s a nice place to visit, but you have to be fairly fit. St. Antony’s Volcano (Volcan San Antonio) is nice in a completely different way. For one thing, it looks like a volcano should look, and you can walk halfway around the spectacular circular crater. You…
The whole island of La Palma is volcanic, but it’s extremely young. The oldest rocks are only about three million years old, so there’s no dinosaur fossils here. Much of the island is basalt – a dark grey rock which tends to form hexagonal columns, like the Giant’s Causeway or Los Organos on La Gomera. Over thousands of years it weathers to a lighter grey or brownish-grey. The red rocks…
The oldest rocks on La Palma are 2,000,000 years old, which is very young for geology. But the youngest rocks are just 40 years old, and it’s their birthday this month. The Teneguía volcano erupted during October and November of 1971. My husband was a teenager at the time, and he remembers going to see it from the San Antonio volcano, and he remembers hearing the deep rumbles at…
This photo was taken from the viewpoint at Los Andennes, where you get a spectacular view into the Caldera. From here you can see a dyke called La Pared de Roberto (Robert’s Wall). It’s about four metres high (13ft). [Volcanic dykes are formed when moulten lava fills a crack in the rock and solidifies slowly into very hard rock called basalt. Later on the softer, surrounding rock is eroded…