[SVC43-P06] Eruption history and magma plumbing system during the post-caldera stage in Mashu volcano, eastern Hokkaido
Keywords:Mashu volcano, post-caldera stage, eruption history, magma plumbing system, radiocarbon14C age
After the formation of the Mashu caldera, magma plumbing system has been changed on the basis of difference in chemical compositions of the rocks between caldera stage and post-caldera stage. However, the magma plumbing system during the post-caldera stage has not been clarified. We show detailed eruptive sequence during the post-caldera stage including effusion period of lavas, and transition process of magma plumbing system of the post-caldera stage.