Civil Thinking

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

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