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Tocantins River
The Tocantins River ( , Parkatêjê dialect, Parkatêjê: ''Pyti'' [pɨˈti]) is a river in Brazil, the central fluvial artery of the country. In the Tupi language, its name means "toucan's beak" (''Tukã'' for "toucan" and ''Ti'' for "beak"). It runs from south to north for about . While sometimes included in definitions of the Amazon basin, the Tocantins is not a branch of the Amazon River, since its waters flow into the Atlantic Ocean via an eastern channel of the Amazon Delta, alongside those of the Amazon proper. It flows through four Brazilian states (Goiás, Tocantins, Maranhão, and Pará) and gives its name to one of Brazil's newest states, formed in 1988 from what was until then the northern portion of Goiás. The Tocantins is one of the largest Clearwater river (river type), clearwater rivers in South America. Course It rises in the mountainous district known as the Pirineus State Park, Pireneus, west of the Federal District, but its western tributary, the Araguaia Ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maranhão River
The Maranhão River is a river of Goiás state in central Brazil. See also *List of rivers of Goiás References Brazilian Ministry of Transport Rivers of the Federal District (Brazil) Rivers of Goiás Rivers of Tocantins {{Goiás-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio Tocantins E Embarcações
Rio or Río is the Portuguese and Spanish word for "river". The word also exists in Italian, but is largely obsolete and used in a poetical or literary context to mean "stream". Rio, RIO or Río may also refer to: Places United States * Rio, Florida, a census-designated place * Rio, Georgia, an unincorporated community * Rio, Illinois, a village * Rio, a location in Deerpark, New York * Rio, Virginia, a community * Rio, West Virginia, a village * Rio, Wisconsin, a village * El Río, Las Piedras, Puerto Rico, a barrio Elsewhere * Rio de Janeiro, Brazil, often referred to as simply Rio * Rio, Italy, a municipality on the island of Elba in Tuscany * Rio, Greece, a community in suburban Patras People * Rio (given name) * Rio (surname) * Tina Yuzuki (born 1986), also known as Rio, Japanese AV idol Arts and entertainment Films * ''Rio'' (1939 film), starring Basil Rathbone * ''Rio'' (franchise), a film series and related media * ''Rio'' (2011 film), an animated film f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dike (geology)
In geology, a dike or dyke is a sheet of rock that is formed in a fracture of a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma flows into a crack then solidifies as a sheet intrusion, either cutting across layers of rock or through a contiguous mass of rock. Clastic dikes are formed when sediment fills a pre-existing crack.Essentials of Geology, 3rd Ed, Stephen Marshak Magmatic dikes A magmatic dike is a sheet of igneous rock that cuts across older rock beds. It is formed when magma fills a fracture in the older beds and then cools and solidifies. The dike rock is usually more resistant to weathering than the surrounding rock, so that erosion exposes the dike as a natural wall or ridge. It is from these natural walls that dikes get their name. Dikes preserve a record of the fissures through which most mafic magma (fluid magma low in silica) reaches the surface. They are studied by geologists for the clues they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapids
Rapids are sections of a river where the river bed has a relatively steep stream gradient, gradient, causing an increase in water velocity and turbulence. Flow, gradient, constriction, and obstacles are four factors that are needed for a rapid to be created. Physical factors Rapids are hydrology, hydrological features between a ''run'' (a smoothly flowing part of a stream) and a ''waterfall#Types, cascade''. Rapids are characterized by the river becoming shallower with some Rock (geology), rocks exposed above the flow surface. As flowing water splashes over and around the rocks, air bubbles become mixed in with it and portions of the surface acquire a white color, forming what is called "whitewater". Rapids occur where the stream bed, bed material is highly resistant to the erosive power of the stream in comparison with the bed downstream of the rapids. Very young streams flowing across solid rock may be rapids for much of their length. Rapids cause water aeration of the stream ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canoe
A canoe is a lightweight, narrow watercraft, water vessel, typically pointed at both ends and open on top, propelled by one or more seated or kneeling paddlers facing the direction of travel and using paddles. In British English, the term ''canoe'' can also refer to a kayak, whereas canoes are then called Canadian (canoe), Canadian or open canoes to distinguish them from kayaks. However, for official competition purposes, the American distinction between a kayak and a canoe is almost always adopted. At the Olympics, both conventions are used: under the umbrella terms Canoe Slalom and Canoe Sprint, there are separate events for canoes and kayaks. Culture Canoes were developed in cultures all over the world, including some designed for use with sails or outriggers. Until the mid-19th century, the canoe was an important means of transport for exploration and trade, and in some places is still used as such, sometimes with the addition of an outboard motor. Where the canoe play ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio Das Mortes
The Rio das Mortes ("River of the Dead") is a river of Mato Grosso state in western Brazil. It has a length of 580 km. See also *List of rivers of Mato Grosso List of rivers in Mato Grosso (Brazilian State). The list is arranged by drainage basin, with respective tributaries indented under each larger stream's name and ordered from downstream to upstream. Mato Grosso is divided by those streams that fl ... ReferencesBrazilian Ministry of Transport Rivers of Mato Grosso {{MatoGrosso-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serra Dos Caiapós
Serra (Latin for "saw") may refer to: People and fictional characters * Serra (surname), a list of people and fictional characters * Serra (given name), a list of people and fictional characters * Serra (footballer), Portuguese footballer José Carvalho Gonçalves (born 1961) Cities, towns, municipalities Brazil *Serra, Espírito Santo, a city in the Greater Vitória area * Serra Azul, in São Paulo *Serra do Navio, in Amapá *Serra do Navio, in Amapá *Serra Negra, in São Paulo *Serra Talhada, in Pernambuco Italy * La Serra, San Miniato, in Tuscany * Serra (Rocca Santa Maria), in Abruzzo * Serra d'Aiello, in Calabria *Serra de' Conti, in Marche * Serra Pedace, in Calabria *Serra Riccò, in Liguria *Serra San Bruno, in Calabria * Serra San Quirico, in Marche *Serra Sant'Abbondio, in Marche Portugal *Serra (Tomar), in Santarém * Serra de Água, in the Madeira Islands *Serra do Bouro, in Caldas da Rainha San Marino *La Serra, in Acquaviva Spain *Serra, Cape Verde *Serra, Va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pirineus State Park
The Pireneus State Park (, also called the ''Parque Estadual da Serra dos Pireneus''), erroneously spelled "Pirineus", is a State park (Brazil), state park in the state of Goiás, Brazil. It protects an area of cerrado that includes the highest peak in the region, the Pico dos Pireneus, on the watershed between the Río de la Plata, Plata and Tocantins River, Tocantins river basins. Location The Pireneus State Park is in the municipalities of Pirenópolis, Cocalzinho de Goiás and Corumbá de Goiás in the state of Goiás. It has an area of . The park is from the city of Pirenópolis by dirt road, and from the town of Cocalzinho de Goiás. The park is in rugged terrain in the Alto Tocantins-Paranaíba Plateau, with altitudes ranging from . There are dozens of small springs that feed the Das Almas River (Tocantins), das Almas River in the Tocantins basin and the Corumbá River in the Plata basin. The Pico dos Pireneus is the highest point of the region at . There is a small cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clearwater River (river Type)
A clearwater river is classified based on its chemistry, sediments and water colour. Clearwater rivers have a low conductivity, relatively low levels of dissolved solids, typically have a neutral to slightly acidic pH and are very clear with a greenish colour. Clearwater rivers often have fast-flowing sections. The main clearwater rivers are South American and have their source in the Brazilian Plateau or the Guiana Shield. Outside South America the classification is not commonly used, but rivers with clearwater characteristics are found elsewhere. Amazonian rivers fall into three main categories: clearwater, blackwater and whitewater. This classification system was first proposed by Alfred Russel Wallace in 1853 based on water colour, but the types were more clearly defined according to chemistry and physics by from the 1950s to the 1980s. Although many Amazonian rivers fall clearly into one of these categories, others show a mix of characteristics and may vary depending ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maranhão
Maranhão () is a States of Brazil, state in Brazil. Located in the country's Northeast Region, Brazil, Northeast Region, it has a population of about 7 million and an area of and it is divided into 217 municipalities. Clockwise from north, it borders on the Atlantic Ocean for 2,243 km and the states of Piauí, Tocantins and Pará. The people of Maranhão have a distinctive accent within the common Northeastern Brazilian dialect. Maranhão is described in literary works such as ''Canção do exílio, Exile Song'' by Gonçalves Dias and ''Casa de Pensão'' by Aluísio Azevedo. The dunes of Lençóis Maranhenses National Park, Lençóis are an important area of environmental preservation. Also of interest is the state capital of São Luís, Maranhão, São Luís, which is a UNESCO World Heritage Site. Another important conservation area is the Parnaíba River delta, between the states of Maranhão and Piauí, with its lagoons, desert dunes and deserted beaches or islands, suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
