Primary magmas at mid-oceas ridges, hotspots, and other intraplate settings: constraints on mantle potential temperature
Intraplate, "hotspot," and mid-ocean ridge basalts (MORB) are characteristic of the modern Earth, and within the plate tectonics interpretation of the Earth's behavior become the basis for a petrological model of the lithosphere and asthenosphere. This model is based on experimental studies of various primitive magmas and of peridotite + (C-H-O), including melting and phase relationships under variable oxygen fugacities (fO 2). The deep mantle plume hypothesis requires a large potential...[Show more]
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