“…Because magmatism and surface processes affect jointly the geological carbon cycle, the surface processes forcing on extensional rock melting investigated here involves an additional means of linkage between plate tectonics and climate changes.…”
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“…‘Dark glass’ and its associated minerals formed from amphibolite or dolerite rocks melted at 1000–1200 °C under reducing atmosphere then slow cooled. …”
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“…Although melting drives planetary differentiation into core, mantle, crust, and atmosphere, the effect of fO(2) on rock melting has not been studied directly to date, with prior efforts focusing on fO(2)-induced changes in the valence ratio of transition metals (particularly iron) in minerals and magma. …”
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“…Indeed, ringwoodite and coexisting HP minerals should be considered as robust evidence for moderate shock pressures (S4) rather than extreme shock (S6) near whole-rock melting. [Image: see text]…”
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