It appears that these magma bodies exist beneath volcanoes over their whole lifetime, not just during an active state.' ...

This is the Cascade Volcanic Arc (aka Cascade Range), of which Lassen Peak is the southernmost active volcano. The Cascade Range is a part of the Circum-Pacific Belt (aka Pacific Ring of Fire) where ...

While studying the volcanic landscape of the Cascade Range north of the California border, Oregon scientists recently discovered something they did not expect: an aquifer containing much more ...