Co-authors Yan Hu (l) and Fang-Zhen Teng with the MC-ICP-MS machine (right) that turns basalt into a plasma, in which electrons are separated from each atom's nucleus, to discover tiny variations ...

The Greek archipelago of Santorini consists of the remains of a powerful volcano. Members of the international IODP expedition "Hellenic Arc Volcanic Field" have now found evidence of one of the ...

volcanoes produce an arc stretching along the southern edge of the Bering Sea and onto the Alaska Peninsula. This volcanic arc delineates the boundary between the Pacific and North American ...

like the other volcanoes in the Philippines, Japan and Indonesia, are a consequence of plate tectonics. An oceanic plate is being pushed (subducted) below an island arc. Melting begins at a depth ...

If rain falls, the ash could harden and pose a danger to you." Most of the Lesser Antilles islands are part of a long volcanic arc in the Eastern Caribbean. The last eruption, in 1979, caused more ...