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Volcanoes reveal a new side Scientists in Italy have found a peculiar lava channel on Mount Etna whose shape cannot be explained by conventional models based on thermal erosion. Carmelo Ferlito and Jens Siewert of the University of Catania say that the volcanic channel might have formed by mechanical erosion effects instead. The results could shed more light on how lava channels form here on Earth and on the Moon and Venus (Phys. Rev. Lett. 96 028501).
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