A laboratory volcano (2): origin of fire fountains
Deposits
formed during fire fountains:
Tears (elongated magma droplets)
Pelee’s hair (very elongated magma droplets)
Scoria and spatter (vesiculated magma)
Reticulite (highly vesiculated magma)
1
cm across;
98
% of gas
density
= 50 kg.m- 3
less 1 mm
thickness
65
% of gas
density
= 900 kg.m- 3
85
% of gas
density
= 400 kg.m- 3