Nettet13 rader · The Chinle Formation is an Upper Triassic continental geologic formation in the western United States which has yielded fossils of many archosaurs: a group of … While colorful Triassic sediments of the Colorado Plateau have been investigated since the 19th century, the Chinle Formation was only formally named and described by Herbert E. Gregory in 1917. It was named for Chinle Valley in Apache County, Arizona, land which is largely within the Navajo Nation. Gregory did … Se mer The Chinle Formation is an Upper Triassic continental geological formation of fluvial, lacustrine, and palustrine to eolian deposits spread across the U.S. states of Nevada, Utah, northern Arizona, western New Mexico, … Se mer The Chinle Formation is fossiliferous, with a diverse array of extinct reptile, fish, and plant fossils, including early dinosaurs and the famous petrified wood of Petrified Forest National Park in Arizona. Se mer Tetrapod biostratigraphy The Chinle Formation is entirely Late Triassic in age. Tetrapod biostratigraphy for the Chinle was … Se mer • List of dinosaur-bearing rock formations • Paleobiota of the Chinle Formation • Triassic land vertebrate faunachrons Se mer The formation members and their thicknesses are highly variable across the Chinle. Arizona and western New Mexico Some of the most extensive deposits of the Chinle Formation are found in the southern Colorado … Se mer Geologic Province: • Black Mesa Basin* • Great Basin province* • Se mer • Lucas, S.G. (1998). "Global Triassic tetrapod biostratigraphy and biochronology". Palaeogeography, Palaeoclimatology, … Se mer
Chinle Formation - Zion National Park (U.S. National Park Service)
NettetAfter deposition of the Point Lookout Formation, the sea completely withdrew from this area. A flat, coastal plain emerged just over 80 million years ago. Swamps developed as small, slowflowing streams wound … Nettet12. aug. 2014 · The 210-million-year-old piece of wood contains the first fossilized fire scar ever discovered, researchers reported here this week at the Ecological Society of … tow truck dix hills ny
Preliminary palynological zonation of the Chinle formation ...
NettetCanyon de Chelly National Monument (/ d ə ˈ ʃ eɪ / də-SHAY) was established on April 1, 1931, as a unit of the National Park Service.Located in northeastern Arizona, it is within the boundaries of the Navajo Nation and lies in the Four Corners region. Reflecting one of the longest continuously inhabited landscapes of North America, it preserves ruins of the … NettetThe surface at which the Bidahochi and Chinle Formations meet is called an unconformity, thereby interrupting the geologic record. At 200 million years of age, the Chinle Formation would not be expected to contact … Nettet14. mai 2024 · Abstract Determining the response of fluvial systems to syn‐sedimentary halokinesis is important for reconstructing the palaeogeography of salt basins, determining the history of salt movement and predicting development and architecture of sandstone bodies for subsurface fluid extraction. To assess both the influence of salt movement … tow truck dolly system