A review of an article in the current issue of Nature, an article that focuses on why mountains form in certain areas of the earth's crust and not in others, outlines valuable insights. We excerpt this one point here, trusting you will check the whole review (the article costs money if you don't have a subscription to Nature):
Marta Pérez-Gussinyé from Royal Holloway, University of London, and Tony Lowry from Utah State University suggest that the common mineral quartz, familiar from sandy beaches, may hold the key to the persistent zones of weakness along which the Earth's continents deform.
Because quartz is the weakest mineral in the earth's crust. Makes sense.
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