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The highest point in the shield is Pico da Neblina in Brazil at 2,995 metres (9,826 ft). [6] Pico da Neblina is the highest summit of the larger Neblina massif, a highly eroded sandstone plateau that straddles the Venezuela-Brazil border and that has lost the typical tabletop shape of the other tepuis in the region. [citation needed]
The Atlantic Shield. The Amazonian (Brazilian) Shield on the eastern bulge portion of South America. Bordering this is the Guiana Shield to the north, and the Platian Shield to the south. The Uruguayan Shield; The Baltic (Fennoscandian) Shield is located in eastern Norway, Finland and Sweden. The African (Ethiopian) Shield is located in Africa.
The São Luís and Luis Alves cratonic fragments (Brazil) are shown, but the Arequipa–Antofalla Craton, the Sahara Craton, and some minor African cratons are not. Other versions describe the Guiana Shield separated from the Amazonian Shield by a depression. The Amazonian Craton is a geologic province located in South America.
Baltic Shield, part of the East European Craton; Fennoscandian Shield, the exposed Northwestern part of the Baltic Shield in Norway, Sweden and Finland (3.1 Ga) Karelian Craton, part of the Fennoscandian Shield in Southeast Finland and Karelia Russia, (3.4 Ga) Kola Craton, part of the Fennoscandian Shield, Kola Peninsula, Northwest Russia
The Amazon Basin is a large sedimentary basin (620,000 square kilometres (240,000 sq mi)) located near the middle and lower course of the Amazon River, south the Guiana Shield and north of the Central Brazilian Shield. The basin developed on a rift that originated about 550 million years ago during the Cambrian.
Much of the rock underlying Brazil formed during the Precambrian, including the São Francisco Craton which outcrops in Minas Gerais and Bahia. In the Mesoproterozoic , the Rio de la Plata Craton (beneath southern Brazil), the vast Amazonia Craton, and the small São Luis Craton and sections of the Congo Craton which form the basement rock of ...
Other versions describe the Guiana Shield separated from the Amazonian Shield by a depression, and the Saharan Metacraton as a part of this West African Craton. The São Francisco Craton is an ancient craton in the eastern part of South America. The craton crops out in the Brazilian states of Minas Gerais and Bahia.
Amazon Delta (Brazil) Amazon Main Channel (Brazil, Peru) Northern Amazon Shield Tributaries (Brazil) Rio Negro (Brazil, Colombia, Venezuela) Upper Amazon Piedmont (Bolivia, Colombia, Ecuador, Peru) Western Amazon Lowlands (Bolivia, Brazil, Peru) Central Brazilian Shield Tributaries (Bolivia, Brazil) Tocantins-Araguaia (Brazil)