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Badlands are a type of dry terrain where softer sedimentary rocks and clay-rich soils have been extensively eroded. [1] They are characterized by steep slopes, minimal vegetation, lack of a substantial regolith, and high drainage density. [2] Ravines, gullies, buttes, hoodoos and other such geologic forms are common in badlands.
Badlands National Park (Lakota: Makȟóšiča [3]) is a national park of the United States in southwestern South Dakota. The park protects 242,756 acres (379.3 sq mi; 982.4 km 2 ) [ 1 ] of sharply eroded buttes and pinnacles , along with the largest undisturbed mixed grass prairie in the United States.
United States Geological Survey geologists and paleontologists continued to map out the Chinle Formation through the 20th century, revising the unnamed subunits of Gregory. A basic stratigraphy of the formation was developed for north-central New Mexico by Wood and Northrop (1946), [ 3 ] and stratigraphy in the Four Corners Region was ...
Badlands National Park. The geology of South Dakota began to form more than 2.5 billion years ago in the Archean eon of the Precambrian.Igneous crystalline basement rock continued to emplace through the Proterozoic, interspersed with sediments and volcanic materials.
Badlands National Park was created in 1978. [58] The park features a highly eroded, brightly colored landscape surrounded by semi-arid grasslands. [59] Wind Cave National Park, established in 1903 in the Black Hills, contains an extensive cave network as well as a large herd of bison. [60]
The southwestern part of North Dakota is covered by the Great Plains, accentuated by the Badlands. There is also much in the way of geology and hydrology . North Dakota is about 340 miles (545 km) east to west and 211 miles (340 km) north to south, with a total area of 70,704 square miles (183,123 km²), making it the 19th largest of the 50 U.S ...
Badlands near Drumheller, Alberta, Canada, where glacial and post-glacial erosion have exposed the K–Pg boundary along with much other sedimentation (the exact boundary is a thin line not obviously visible). Complex Cretaceous-Paleogene clay layer (gray) in the Geulhemmergroeve tunnels near Geulhem, the Netherlands. Finger is just below the ...
The Painted Desert is a United States desert of badlands in the Four Corners area, [2] running from near the east end of Grand Canyon National Park and southeast into Petrified Forest National Park. It is most easily accessed from the north portion of Petrified Forest National Park.