Question by Sciencemom: Is the Rockie Mountain range still lifting – or are they dying?
A geology special last night said that the Rockies were a dying mountain range. But isn’t the Pacific plate still subducting and therefore lifting the North American plate? Or is the erosion rate higher than the uplift rate?
Answer by Strigiformes
Rocky Mountains (at least in Pikes Peak country) were formed by the uplift and erosion of a granite batholith. No longer uplifting because there is no longer volcanic activity, thus they are dead and eroding.
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