When magma prevents volcanic eruptions
(WorldNews Environment)

Calderas are huge topographic depressions formed by large volcanic eruptions. They sometimes experience an inflation of their floor of up to a kilometer, caused by magma injection. This process, dubbed `caldera resurgence,` remains one of the least understood in volcanology. Researchers now show that non-erupted magma left after the caldera-forming eruption behaves as a `rubber sheet` that inhibits the rise of the newly injected magma. ......