magma chamber

British  

noun

1. a reservoir of magma in the earth's crust where the magma may reside temporarily on its way from the upper mantle to the earth's surface

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Example Sentences

The size of Strombolian eruptions can vary but are often characterised by intermittent explosions, which occur due to the presence of gas in the magma chamber within the volcano.

From BBC

This is creating a 3D map that shows how the hydrothermal system is connected to the volcano's magma chamber where an eruption is generated.

From BBC

Indeed, the fact that there were so many hot spots spaced so closely together suggests that there is a vast underground magma chamber system.

From Salon

“We don’t believe that sticking a needle into a huge magma chamber is going to create an explosive effect,” he asserts.

From BBC

It’s not clear what causes these explosions, but scientists have long suspected that as the volcano’s subterranean magma chamber drained, groundwater encroached, flashing to steam with booming results.

From Science Magazine