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Multiple mirrors formed by pebbles. (c)
File: nisyros_d22891.jpg | 3079 Hits
--- Image found in Nisyros March 2008: springtime
Waves hit the beach pebble of Vlyhada beach (Photo: Tobias Schorr)
File: santorini_april_2011_0110.jpg | 884 Hits Copyright: Tobias Schorr / www.methana.com --- Image found in Santorini Photo Tour April 2011 ... and in: Photo of the Day
Divergent plate boundaries in oceans Two ocean plates move apart from each other. Hot upwelling mantle material forms magmas that continuously produce new oceanic crust. An ocean widens.
Pearl of the Aegean Santorini is one of the most beautiful islands in the world, famous for its breathtaking sea-filled caldera and picturesque villages. Discover its fascinating natural and cultural history on a relaxed walking study tour with us.
Volcanic Ash Advisory Centres Much current eruption news is provided by the 9 Volcanic Ash Advisory Centres (VAAC) distributed around the globe. The VAACs provide a vital service for aviation safety.