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
Beneath the Gated Sky Beneath the Gated Sky Beneath the Gated Sky is a science-fiction novel by Robert Reed, first published in 1997. It describes a world in which the sky undergoes a transformation that prevents people from seeing the stars, giving them instead a view of the other side of the world, as if the Earth had been turned inside out. The entire universe seems to have been rebuilt by an intelligence so that each body of matter exists in a structure that connects all matter together allowing travel between worlds using "quantum intrusions". The intrusions only allow minds, or as some would