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The Amazon Delta (Portuguese: delta do Amazonas) is a vast river delta formed by the Amazon River and the Tocantins River (through the Pará River distributary channel) in northern South America. [ 1 ] [ 2 ] [ 3 ] It is located in the Brazilian states of Amapá and Pará [ 4 ] and encompasses the Marajó Archipelago , with Marajó Island as its ...
The Tocantins River enters the southern portion of the Amazon delta. In the lower reaches of the river, the north bank consists of a series of steep, table-topped hills extending for about 240 km (150 mi) from opposite the mouth of the Xingu as far as Monte Alegre .
The average flow rate at the mouth of the Amazon is sufficient to fill more than 83 such pools each second. The estimated global total for all rivers is 1.2 × 10 6 m 3 /s (43 million cu ft/s), [ 1 ] of which the Amazon would be approximately 18%.
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]
It is the gateway to the Amazon River with a busy port, airport, and bus/coach station. Belém lies approximately 100 km (62.1 miles) upriver from the Atlantic Ocean, on the Pará River, which is part of the greater Amazon River system, separated from the larger part of the Amazon delta by Ilha de Marajó (Marajo Island).
Ilha Grande do Gurupá is a large river island of the Amazon River delta. [1] It lies in the Brazilian state of Pará, west of Marajó and near the confluence of the Amazon and the Xingu. The island has an area of 4,864 square kilometres (1,878 sq mi). [citation needed] This island is part of the Marajó Archipelago. [2]
The port of Manaus, the region's most populous city, at the meeting of the Rio Negro and the Amazon River, recorded 13.59 meters (44.6 ft) of water on Monday compared to 17.60 a year ago ...
The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about 7,000,000 km 2 (2,700,000 sq mi), [ 1 ] or about 35.5 percent of the South American continent.