What geological processes have caused the grand canyon to be wider at the top than at the bottom?

The geological processes that have caused the grand canyon to be wider at the top than the bottom are like a river cuts down, the steep walls of the canyon experience mass movement (as rocks fall, slump, creep or otherwise move off the walls, and down to the river). So the top of the canyon is widening as the river deepens the bottom.

The Grand Canyon is one example of the formation of nature as a result of the tectonic lifting process. The Grand Canyon is located in the state of Arizona, United States. This natural formation is the largest canyon in the United States that has a length of 447 Km, a width of 29 Km, with a depth of 1.8 Km. Millions of years ago, the Grand Canyon formed when the Colorado River cut the Colorado plateau which was lifted through uplift tectonics.

The Grand Canyon is estimated to be eroded significantly time by time, around 0.3 meters per 200 years. This erosion makes Grand Canyon continues to deepen as the Colorado River flows. On the other side, because the Colorado plateau is a stable and solid area, this part will only look wide.

Subject: Geography

Chapter: The Dynamics of the Lithosphere and Its Impact on Life

Keywords: Grand Canyon, erosion in the Grand Canyon, geomorphology of the Grand Canyon, geological process in Grand Canyon