| 1 |  | Jurassic Navajo Sandstone of Coyote Buttes, Utah/Arizona: coloration and diagenetic history, preservation of a dinosaur trample surface, and terrestrial analogs to Mars | Seiler, Winston Marmion | Sandstone--Utah; Dinosaur tracks; Mars | The Coyote Buttes, in Jurassic Navajo Sandstone, straddles the Utah-Arizona border at the northwest margin of Vermilion Cliffs National Monument. Its spectacular geologyâ€"cyclic eolian cross strata, striking coloration, and sculpted geomorphologyâ€" makes the area one of the most popular o... | 2008-05-19 |