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 is chemically similar to continental crust. Since subduction is so common, the continents must be growing over geologic time. And, this opens up a large discussion with very few answers. Jesse offers up two theories on how continents get destroyed over time. Listen today and follow us on social media and our new webpage!
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