2020.11.04

Magma Far Afield

One third of volcanoes may have molten reservoirs kilometers away

South Sister volcano in Oregon has an offset magma reservoir. / © 2020 Scientific American f f fa a ac c ce e e. . . “ “ “I I In n n s s sm m ma a al l l l l l v v vo o ol l lc c ca a an n no o oe e es s s, , , t t th h he e e m m ma a ag g gm m ma a a t t th h ha a at t t ascendsiskindofatthemercyofpreexist- ingcrustalstructures,”Lernersays. / ALAMY

South Sister volcano in Oregon has an offset magma reservoir. / © 2020 Scientific American f f fa a ac c ce e e. . . “ “ “I I In n n s s sm m ma a al l l l l l v v vo o ol l lc c ca a an n no o oe e es s s, , , t t th h he e e m m ma a ag g gm m ma a a t t th h ha a at t t ascendsiskindofatthemercyofpreexist- ingcrustalstructures,”Lernersays. / ALAMY

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