A nearly-to-scale model of the eastern Pacific and western Americas 8000 km (40° of latitude) 10 km ea Andr San ern west rnia o Calif lt Basin and s Fau rra e i Range S das a v e N Continental lithosphere Sea level Oceanic lithosphere Front Range Colorado Plateau Fault ? es ward trench o t l l c pu cifi Slab tern Pa s we ia aliforn PR E Baja C Sierra Madre Occidental Sla rd hes towafic trenc l l u p ci Slab tern Pa s we b pu ll Sierra Madre del Sur North Later South Earlier EPR e a s Sl a b p tern ull Pac towa r ific tren d che s es ward trench o t l l pu cific Slab tern Pa 1 0 km wes Andes EPR rd hes towafic trenc l l u p ci Slab tern Pa s we eas Slab tern pu Pa ll tow cifi c tr ard enc hes LBR DPT-EPR&Americas01.odg 1/2016
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