Magmatic Gas Content
Dissolved gases typically comprise ~ 1-5% of the magma
MAIN GASES
H20 (70-90%)
CO2
SO2
TRACE GASES
N,H,S
F, Ar
CO, CL
TOXIC GASES
HCL, HF
H2S04
H2S
These gases start out DISSOLVED in the magma, like the carbonation in a soda.
H2O and CO2 are by far the most abundant gases in magmas