2/4. The tsunami record from about 7,500 to 3,000 years ago is impeccable, say the scientists |
A cave on the northwestern coast of Sumatra holds a remarkable record of big tsunamis in the Indian Ocean.
Scientists are using the site to help determine the frequency of catastrophes like the event of 26 December 2004.
This is being done by dating the cave's tsunami-borne sediments, which are easy to see between layers of bat droppings.
"The tsunami sands just jump right out at you
because they're separated by guano layers. There's no confusing the
stratigraphy (layering)," explains Dr Jessica Pilarczyk.
Dr Pilarczyk was speaking here in San Francisco at the American Geophysical Union (AGU) Fall Meeting, the world's largest annual gathering of Earth scientists. [...] bbc.co.uk
Actualización. La cueva de Sumatra que revela los secretos de los tsunamis
Una cueva en la costa noroccidental de la isla de
Sumatra, en Indonesia, alberga un notable registro de los mayores
tsunamis del Océano Índico.
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Actualización. La cueva de Sumatra que revela los secretos de los tsunamis
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