Are Continents Growing? (Geoshort)

This is a GeoShort followup discussion based on our previous Episode on the origins of continents and Bowen's reaction series! While Bowen's reaction series explains many things — like why is Hawaii different from Yellowstone? — it makes some very interesting predictions! Chris wonders, does the distillation of continents during Bowen's Reaction Series mean that continents are always growing? In other words, when water gets driven off a subducting slab, it generates magma that i...