The iron in the stones of the Grand Canyon turn the color of red is it Mechanical Weathering or Chemical Weathering

Mechanical weathering occurs when water drips or flows over rock for prolonged periods; the Grand Canyon, for example, was formed to a large degree by the mechanical weathering action of the Colorado River. Chemical weathering occurs when water dissolves minerals in a rock, producing new compounds.

asdf

explanation:

i think it's severe storms but i might be wrong