The film also discusses how various natural processes, including the remains of marine life and plant materials, contribute to the formation of sedimentary rocks and their layered structure.

"The Tonto Group of Grand Canyon holds a treasure trove of sedimentary layers ... new insights into rock sedimentation speeds ...

Difficult to imagine today, the sedimentary rock formations date back almost 500 ... Saturated with calcium carbonate and teeming with a diversity of marine organisms, the bottom of this ancient ...