Michael, P. and Graham, D. (2016) The behavior and concentration of CO2 in the suboceanic mantle: Inferences from undegassed ocean ridge and ocean island basalts


The amount of non-anthropogenic versus anthropogenic input of CO2 to the Earth’s atmosphere is currently a hotly debated topic. The most direct way to estimate volatile flux from the interior of the Earth is by measuring the concentration of the volatiles in basaltic magma as it moves to the surface. While the CO2 of naturally quenched glasses from mid-ocean ridge basalts (MORBs) and ocean island basalts can be measured, estimates of mantle-derived CO2 content of magmas is much more difficult to estimate.