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 Boardwalk Beneath the Boardwalk Beneath the Boardwalk refers to an unofficial collection of 18 demo recordings by Sheffield band Arctic Monkeys which was burned onto CDs to give away at the band's gigs for free, and which emerged on the Internet in 2004, promptly file-shared amongst fans. The name "Beneath the Boardwalk" originated when the first batch of demos were sent around on the Internet. The first sender, wanting to classify the demos, named them after the club where he received them, the Boardwalk in Sheffield — a since defunct venue where the Arctic Monkeys used to play gigs and Alex