Its name comes from the colorful layers of rock and soil that seem to paint ... The Painted Desert spans northern Arizona, stretching from the Grand Canyon to Petrified Forest National Park.

Bryce Canyon may be grouped into what’s known ... Home to the greatest collection of hoodoos—spire-shaped sedimentary rock formations—anywhere in the world, the park is made up of natural ...

The extraordinary formations, each comparable in size to Earth’s Grand Canyon, are hidden on the ... Future missions could visit the basin and take rock samples to help scientists better ...

Musicians write songs about it. Scientists read the history of North America in the layers of its rock walls. The Grand Canyon is one of the Seven Natural Wonders of the World, with other ...

Credit: Laurie Crossey, UNM Newsroom “The Tonto Group of Grand Canyon holds a treasure trove of sedimentary layers and fossils chronicling the ... developed 50 years ago on these same rocks by Eddy ...

"The Tonto Group of Grand Canyon holds a treasure trove of sedimentary layers and fossils chronicling ... A fresh analysis of rocks exposed in the side of the canyon is changing an 80-year-old ...

Unconformities occur when a sustained period of erosion removes and prevents newer layers of rock from forming, leaving an unconformable contact. (Credit: Mike Norton via Wikimedia, CC BY-SA) ...

“The Tonto Group holds a treasure trove of sedimentary layers and fossils chronicling the Cambrian ... “And we’re helping to further decode it. Because Grand Canyon rocks record global changes in ...

most famously at the Grand Canyon, where in places, over a billion years of time is missing. Unconformities occur when a sustained period of erosion removes and prevents newer layers of rock from ...

"The Tonto Group of Grand Canyon holds a treasure trove of sedimentary layers and fossils chronicling ... developed 50 years ago on these same rocks by Eddy McKee. The McKee Model, taught to ...