Arizona Geological Society: New Discovery of Beach Sand, Beachrock, and Tuffa from the Uppermost Portion of the Bidahochi Formation and their Implications for the Development of the Grand Canyon
The formation of the Grand Canyon is a long-standing controversial topic in geology. The literature is littered with hypotheses and conjecture. A river that has cut a canyon through a topographic bedrock highland, as the Colorado River does through the Kaibab Plateau, is termed a transverse drainage. Four mechanisms have been proposed to explain the...