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A river delta is so named because the shape of the Nile Delta approximates the triangular uppercase Greek letter delta.The triangular shape of the Nile Delta was known to audiences of classical Athenian drama; the tragedy Prometheus Bound by Aeschylus refers to it as the "triangular Nilotic land", though not as a "delta". [8]
Ait – Islands found on the River Thames and its tributaries in England; Alluvial fan – Fan-shaped deposit of sediment; Anabranch – A section of a river or stream that diverts from the main channel and rejoins it downstream. Arch – Arch-shaped natural rock formation; Archipelago – Collection of islands
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.
As typically used in geology, the triangular facet is usually a remnant of a fault plane and it and its associated faceted spur are the result of faulting. The term faceted spur is also applied to inverted-V rock faces formed by stream, wave, or glacial erosion and, thus, as a synonym for truncated spur .
The Ganges Delta has the shape of a triangle and is considered to be "arcuate" (arc-shaped). It covers more than 105,000 km 2 (41,000 sq mi) and lies mostly in Bangladesh and India, with rivers from Bhutan , Tibet , and Nepal draining into it from the north. 67% of the delta is inside Bangladesh and only 33% belongs to West Bengal.
Moreover, river mouth bars are important hydrocarbon reservoirs, [14] [15] and have been widely interpreted in the geologic record. [16] [17] Analyses of the hydraulic and sedimentologic conditions of river mouth bar formation, progradation and aggradation, and prediction on their shape, size and spacing are incredibly valuable for reservoir ...
The vertical gradient from Lake Okeechobee to Florida Bay is about 2 inches (5.1 cm) per mile, creating an almost 60-mile (97 km) wide expanse of river that travels about half a mile (0.8 km) a day. [25] This slow movement of a broad, shallow river is known as sheetflow, and gives the Everglades its nickname, River of Grass. Water leaving Lake ...
It was formerly known by the French as the Iroquois River and the Chambly River, and was named for Cardinal Richelieu, the powerful minister under Louis XIII. [ 1 ] This river was a long a key route of water transport for trading, first by indigenous peoples, and then for cross-border trade between Canada and the United States.