Ex­cep­tional quan­tity of magma un­der Mount Paektu

Science Illustrated - - NATURE/SUPERVOLCANOES -

Seis­mic sur­veys have re­vealed that Mount Paektu’s magma cham­ber is ex­tremely spa­cious and full of magma.

Right un­der the crater, there is a ma­jor quan­tity of liq­uid magma, which is ready for the next eruption. The magma is of a kind that causes par­tic­u­larly ex­plo­sive erup­tions.

Un­der the magma, there is a layer of vol­canic slurry with 50 % crys­tals and 50 % magma, which is suf­fi­ciently liq­uid to be ejected in case of an eruption.

At the bot­tom of the cham­ber, there is a stiff, spongy layer that con­sists of 65 % crys­tals and 35 % liq­uid magma. Feed pipes sup­ply new magma.

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