Lane S.J., Gilbert J.S. (Eds.) Fluid Motions in Volcanic Conduits: A Source of Seismic and Acoustic Signals

Geological Society of London, 2008, 244 pages, ISBN: 1862392625 9781862392625Geological Society of London. Special Publication, 307This Special Publication presents a series of papers based on field, numerical and experimental approaches that seek to establish links between geophysical signals and fluid motion in volcanic conduits.Volcanoes become active when fluids are in motion, and erupt when these fluids escape into the atmosphere. Volcanic fluids are a mixture of solid, liquid and gas. These mixtures result in a complex range of flow behaviour, especially during interaction with conduit geometry. These processes are not directly observable and must be inferred from interpretations of field observation and measurement.
One of the outcomes of this complexity is the generation of pressure and force transients as high-density phases accelerate and decelerate during unsteady flow. These transients are one means of flexing the conduit wall, a process that manifests itself as ground motion and is detectable as volcano seismic signals. On eruption, volcanic fluids interact with the atmosphere and generate acoustic and thermal signals.Acknowledgements
The consequences of fluid motion in volcanic conduits
Damping of pressure waves in visco-elastic, saturated bubbly magma
Numerical simulation of the dynamics of fluid oscillations in gravitationally unstable, compositionally stratified fissure
The feasibility of generating low-frequency volcano seismicity by flow through a deformable channel
Shallow-conduit dynamics at Stromboli Volcano, Italy, imaged from waveform inversions
Trends in activity at Pu’u ’O’o during 2001–2003: insights from the continuous thermal record
From Strombolian explosions to fire fountains at Etna Volcano (Italy): what do we learn from acoustic measurements?
From sound waves to bubbling within a magma reservoir: comparison between eruptions at Etna (2001, Italy) and Kilauea (Hawaii)
Modelling the rapid near-surface expansion of gas slugs in low-viscosity magmas
Cyclic activity at Soufrie`re Hills Volcano, Montserrat: degassing-induced pressurization and stick-slip extrusion
Source mechanisms of vulcanian eruptions at Mt. Asama, Japan, inferred from volcano seismic signals
Dome-building eruptions: insights from analogue experiments