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 Shadows continue in the musical direction of "Beneath the Shadows", playing with the keyboard-driven Cathedral of Tears and then with Barnes in Tender Fury. Kuehn also did not stay with T.S.O.L. past "Beneath the Shadows", going on to other musical credits including playing with Bob Dylan. Guitarist Ron Emory and bassist Mike Roche continued on as T.S.O.L., bringing in singer Joe Wood and drummer Mitch Dean. Over the course of four more studio albums, the new T.S.O.L. lineup would take the band's style even further from punk rock, moving first in a gothic rock direction, then into hard rock and glam