Volatile recycling

Hilton D. R., Fischer T. P., and Marty B. (2002) Noble gases and volatile recycling at subduction zones. Rev. Mineral. Geochem. 47, 319-370. 

Kerrick D. M. and Connolly J. A. D. (2001a) Metamorphic devolatilization of subducted oceanic metabasalts implications for seismicity, arc magmatism and volatile recycling. Earth Planet. Sci. Lett. 189, 19 - 29. 

Philippot P. (1993) Fluid-melt-rock interaction in mafic eclogites and coesite-bearing metasediments constraints on volatile recycling during subduction. Chem. Geol 108, 93-112. 

Nohle Gases and Volatile Recycling at Subduction Zones... 

Noble Gases and Volatile Recycling at Subduction Zones Table 4. Summary of helium isotope variations in back arc-related volcanics and hydrothermal fluids. 335... 

In this section, we provide estimates of the volatile flux input—of both noble gases (He, and Ar) and major volatiles (CO2, N2 and H2O)— via the trench. We consider both the subducted sediment load as well as the underlying crustal basement (of thickness 7 km). Note that the volatile input parameter can be calculated for an extensive listing of subduction zones however, the output parameter via arcs (Table 9) is well constrained by flux data for a limited number of arcs only. For these arcs, at least, we have a direct comparison between input and output for specific volatile species. However, by extrapolating the (limited) output data to arcs worldwide, we can address the question of volatile recycling between the mantle and crust, hydrosphere and atmosphere from a global perspective. 

Global implications of volatile recycling at subduction zones... 

Hilton DR, Fischer T, Marty B (2002) Noble gases in subduction zones and volatile recycling. Rev Mineral Geochem 47 319-370... 

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