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The South American plate is a major tectonic plate which includes the continent of South America as well as a sizable region of the Atlantic Ocean seabed extending eastward to the African plate, with which it forms the southern part of the Mid-Atlantic Ridge.
A sovereign state is a political association with effective sovereignty over a population for whom it makes decisions in the national interest. [3] According to the Montevideo Convention, a state must have a permanent population, a defined territory, a government, and the capacity to enter into relations with other states. [4]
The South American continent also includes various islands, most of which belong to countries on the continent. The Caribbean territories are grouped with North America. The South American nations that border the Caribbean Sea — Colombia and Venezuela —are also known as the Caribbean South America.
The first South American country to abolish slavery was Chile in 1823, Uruguay in 1830, Bolivia in 1831, Guyana in 1833, Colombia and Ecuador in 1851, Argentina in 1853, Peru and Venezuela in 1854, Suriname in 1863, Paraguay in 1869, and in 1888 Brazil was the last South American nation and the last country in western world to abolish slavery.
Below is a list of countries and dependencies in South America by area. [1] Brazil is the largest country in South America while Suriname is the smallest. Panama is not regarded as a transcontinental country but the country is sometimes included in South America due to being part of Colombia prior to its secession in 1903.
The oceanic Nazca plate subducts beneath the continental South American plate at the Peru–Chile Trench. Just north of the Nazca plate, the oceanic Cocos plate subducts under the Caribbean plate and forms the Middle America Trench. Oceanic crust of the South American plate subducts under the Caribbean plate in the Lesser Antilles subduction zone.
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South American Plate Gondwana ( / ɡ ɒ n d ˈ w ɑː n ə / ) [ 1 ] was a large landmass, sometimes referred to as a supercontinent . The remnants of Gondwana make up around two-thirds of today's continental area, including South America , Africa , Antarctica , Australia , Zealandia , Arabia , and the Indian Subcontinent .