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_6079456.JPG - See zig-zag between the red rock and the white rock? That's a contact zone between metamorphic rocks (ancient, cooked seafloor) and the younger granite that squeezed its way up, cooking the stuff that surrrounded it. The mixture of hot mamgma & cooking sea floor provide lots of places for mineral-rich seams of intrusive material to call home.

See zig-zag between the red rock and the white rock? That's a contact zone between metamorphic rocks (ancient, cooked seafloor) and the younger granite that squeezed its way up, cooking the stuff that surrrounded it. The mixture of hot mamgma & cooking sea floor provide lots of places for mineral-rich seams of intrusive material to call home.