Laboratory experiments for fire fountains (1):
1)Basalt
is saturated in CO2 at the
depth of the
magma chamber, 0.7 wt %
Fluid inclusions
gas content and
depth of formation
glass inclusions
2) Hawaii: cyclic activity
between two steady-states
(fire fountains and effusive
activity)
process in the magma chamber
3) Hypothesis to be tested:
Origin of various eruption regimes ?
dynamics of a degassing reservoir ?