The 2005 eruption on Barren Island, Andaman Sea

摘要

The active Barren volcano on west Andaman Sea is a part of the inner volcanic chain of active and quaternary volcanoes extending from Myanmar to Sumatra. The 2005 Barren volcanic activity in its climax was a continuous ejection of huge volume of juvenile gas, ash and discrete instantaneous outburst of incandescent coarser fragments of basaltic composition from a subaerial open vent with minor lava flows. The explosion is interpreted as mild Strombolian eruption possibly triggered by the fragmentation of moderately fluid, volatile-rich, frothy magma in the upper part of the conduit but below the surface.