Why the Colorado Plateau’s Red Rock Layers Reveal a Long Story of Changing Landscapes
Explore how ancient environments, tectonic uplift and erosion shaped the Colorado Plateau's red rock landscapes.
Explore how ancient environments, tectonic uplift and erosion shaped the Colorado Plateau's red rock landscapes.
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The dramatic rock towers of Arizona's Chiricahua region are associated with thick deposits of volcanic ash that cooled and welded together. Later weatherin
The Capitan Reef of West Texas and New Mexico is a major Permian carbonate system preserved around the margins of an ancient basin. Its rocks record a mari
The San Juan volcanic region of southwestern Colorado contains a complex record of volcanic activity, including large caldera systems and younger volcanic
Salt flats develop where water collects in a closed basin and evaporates, leaving dissolved minerals behind. Death Valley's playa surfaces preserve a chang