Fig. 5: Model showing the role of C in transporting metal-rich sulfides from the mantle into the crust. | Nature Communications

Fig. 5: Model showing the role of C in transporting metal-rich sulfides from the mantle into the crust.

From: Fluxing of mantle carbon as a physical agent for metallogenic fertilization of the crust

Fig. 5

a Schematic representation of mantle to crust magmatic systems as represented by our case studies. Not to scale; b migration of low-degree partial melts reacting with orthopyroxene (opx) causing SiO2 contamination triggering CO2 and sulfide supersaturation; c upward migration of metal-rich sulfide melts by physical attraction to droplets of low-density supercritical CO2-rich fluid; d mid-crustal separation of supercritical CO2-rich fluid and sulfide melts; e mid- to upper crustal redissolution of sulfide into silicate melt and further decoupling from CO2.

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