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The famous view of Cinchado at Los Roques de Garcia, with Mount Teide as backcloth. Cinchado was created as a result of varying resistance to erosion of its layers which probably include pyroclastic flow deposits, sub-plinian deposits, breccias and lahar muds. The relatively recent lava flows on the hill slopes are seen to be pahoehoe when viewed closely. |
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This is another of the fantastic rock sculptures at the popular tourist site of Los Roques, with the Parador Hotel in the distance. An ancient a'a lava flow occupies much of the low ground, covering the base of the Cañadas caldera. |
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The summit of Mount Teide, as seen from close to the cable car top station. Permits are required to go to the top. Lavas in the foreground may date from eruptions of 1705 or 1798. The most recent eruption on Tenerife, that of 1909, produced only a small cinder cone in the base of the adjacent caldera. |
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The Cañadas caldera forms the flat area, surrounded on most sides by 500 metre high slopes. The higher slopes of Mount Teide form the foreground, close to the cable car top station. The caldera, which measures 10km x 17km, is believed to have formed when the corresponding volcano collapsed about 150,000 years ago, associated with shrinkage of the magma chamber below. Although this caldera has no lake, much of Tenerife's groundwater lies below the caldera surface. |
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Starkly contrasting volcanic layers near Playa de Las Americas. Lighter layers appear to be volcanic ash, while the dark material is almost certainly a basaltic lava flow, and shows crude vertical polygonal cooling columns. |
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The cliffs at Los Gigantes appear to be constructed of a variety of volcanic rocks, no doubt including lava flows, pyroclastic flows and airfall ash deposits. They are cut by many superb examples of dykes, outstanding in relief from the earlier deposits, and light in colour. Some extend through the entire series of earlier deposits, while others tail out upwards or downwards. |
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