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
The Ground Beneath Her Feet The Ground Beneath Her Feet The Ground Beneath Her Feet is Salman Rushdie's sixth novel. Published in 1999, it is a variation on the Orpheus/Eurydice myth with rock music replacing Orpheus' lyre. The myth works as a red thread from which the author sometimes strays, but to which he attaches an endless series of references. The book, while at its core detailing the love of two men, Ormus Cama and Umeed "Rai" Merchant (the narrator of the story), for the same woman, Vina Apsara, provides a background and alternate history to the entire 1950s–1990s period of the growth of rock