Worlds of David Darling
Encyclopedia of Science
   
Home > Encyclopedia of Science

canyon




Grand Canyon
Grand Canyon
A deep, steep-sided valley formed through erosion by a river of hard rock lying in horizontal strata. The best known example is the Grand Canyon in Arizona. Marine canyons may be formed when a riverbed and the surrounding terrain is submerged, or by turbulence by deep-water currents.


Related categories

   • GEOGRAPHY
   • GEOLOGY AND PLANETARY SCIENCE