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A rock formation is an isolated, scenic, or spectacular surface rock outcrop. Rock formations are usually the result of weathering and erosion sculpting the existing rock. The term rock formation can also refer to specific sedimentary strata or other rock unit in stratigraphic and petrologic studies.
Traditionally in geomorphology, a flatiron is a steeply sloping triangular landform created by the differential erosion of a steeply dipping, erosion-resistant layer of rock overlying softer strata. Flatirons have wide bases that form the base of a steep, triangular facet that narrows upward into a point at its summit.
Tessellated pavement – Relatively flat rock surface that is subdivided into more or less regular shapes by fractures; Truncated spur – Ridge that descends towards a valley floor or coastline that is cut short; Tor – Large, free-standing rock outcrop on a gentle hill summit
Flow regimes in single-direction (typically fluvial) flow, which at varying speeds and velocities produce different structures, are called bedforms. In the lower flow regime, the natural progression is from a flat bed, to some sediment movement (saltation etc.), to ripples, to slightly larger dunes. Dunes have a vortex in the lee side of the dune.
The Flatirons are rock formations in the western United States, near Boulder, Colorado, consisting of flatirons.There are five large, numbered Flatirons ranging from north to south (First through Fifth, respectively) along the east slope of Green Mountain (elev. 8,148 ft or 2,484 m), and the term "The Flatirons" sometimes refers to these five alone.
A mesa is an isolated, flat-topped elevation, ridge or hill, which is bounded from all sides by steep escarpments and stands distinctly above a surrounding plain. Mesas characteristically consist of flat-lying soft sedimentary rocks capped by a more resistant layer or layers of harder rock, e.g. shales overlain by sandstones. The resistant ...
Spider Rock Pinnacle Balanced Rock The West and East Mitten Buttes Window Rock. Antelope Canyon; Canyon de Chelly National Monument. Spider Rock; Capitol Butte; Cathedral Rock, Red Rock State Park, Sedona; Cathedral Rock (Coconino County, Arizona) Chaistla Butte; Chiricahua National Monument. Big Balanced Rock; Duck on a Rock; Mushroom Rock ...
The Richat Structure in the Sahara Desert of Mauritania. Once considered to be an impact structure, it is now classified as a geologic dome uplifted by an underlying igneous intrusion. Structural dome on Baffin Island, seen in a planation surface. Oblique aerial photo of Upheaval Dome, Utah.