The mystery of volcanoes that don’t explode finally has an answer

Scientists have uncovered a long-missing piece of the volcanic puzzle: rising magma doesn’t just form explosive gas bubbles when pressure drops—it can do so simply by being sheared and “kneaded” inside a volcano’s conduit. These shear forces can trigger early bubble growth, create escape channels for gas, and sometimes turn potentially catastrophic magmas into surprisingly gentle lava flows.

from Latest Science News -- ScienceDaily https://ift.tt/6CzK75V

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