Tenerife north dating
Here we document tsunami deposits (marine gravels with pumices) on the north-western flanks of Tenerife, Canary Islands, at altitudes up to 132 m a.s.l. A unique example of coupled slope instability and explosive activity at an oceanic shield volcano is the relatively small debris avalanche ((a) Location map of the Canary Islands in the Atlantic Ocean; (b) Shaded relief view of Tenerife island, showing the Icod debris avalanche on the north flanks of the island; (c) 3d view of North-West Tenerife.Tsunami deposits are located on the Isla Baja and Punta de Teno platforms (white dots with numbers).Previously the worst accident in aviation history was a Turkish airlines crash near Paris with the loss of 346 lives.In total 583 people died in the blaze that followed the collision and the incident remains the world's worst aviation accident in history.The scar of the failure is filled by lava flows of the Teide volcanic complex.Tsunami deposits are preserved at different locations around Isla Baja and Teno Bajo (Fig. The stratigraphy of the sedimentary sequences slightly differs from one site to another (Fig.The dominant population of clasts comes from basaltic lavas that forms nearby coastal cliffs and platforms, but there are also numerous marine bioclasts (Fig.3b: bivalve and gastropod shells, foraminiferas, calcareous algae, coral fragments), rare rounded pebbles from the beach, and rare pumices.
Marine conglomerates and megaclasts found at unusually high elevations in Hawaii, Cape Verde, Mauritius and Canary Islands were interpreted as being the result of tsunami waves generated by massive flank failures of oceanic shield volcanoes.These conglomerates are preserved at different elevations, often out of the range of marine highstand deposits.Their composition reflects a mixing of different sediment provenance and assemblages of bioclasts (planktonic, benthic, littoral and subaerial), which are never found in growth position. The stratigraphy of the tsunami deposits and characterization of pumice clasts found in these deposits allows us to distinguish at least two successive tsunamis, identify their possible source, and demonstrate the association between a massive flank failure (Icod collapse) and an explosive ignimbrite-forming eruption (El Abrigo) both about 170 kyr ago.Early reports suggest a Boeing 747, belonging to Dutch national airline KLM, and a Pan American 747 travelling from Los Angeles to Las Palmas were involved in the accident.No-one survived from the Dutch airliner which was carrying 249 passengers including crew, and was travelling from Schipol airport, Amsterdam.