Magma chamber of magma chambers can be mapped using seismology: seismic waves from earthquakes move more slowly through liquid rock than solid, allowing measurements to pinpoint the regions of slow movement which identify magma chambers. As a volcano erupts, surrounding rock will collapse into the emptying chamber. If the chamber's size is reduced considerably, the resulting depression at the surface can form a caldera. Magma chamber A magma chamber is a large pool of liquid rock beneath the surface of the Earth. The molten rock, or magma, in such a chamber is under great pressure, and, given enough time, that pressure can
Journey to the Centre of the Earth (album) of rock and attacks it with a pick axe, revealing a stream of boiling water they named the Hansbach. The three temporarily separate, and a lone Axel becomes increasingly frightened. Thinking of those who he had left at home, he cries and runs through a tunnel blindly. He almost gives up, but suddenly hears Lidenbrook's voice in the distance and calculates he is just four miles apart and sets off to reunite. At one point the ground beneath Axel collapses and he finds himself with Lidenbrook and Hans in a giant mushroom forest nearby cliffs and sea. The trio build