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The Guiana Highlands are also the source of some of the world's most well-known waterfalls such as Angel Falls, Kaieteur Falls and Cuquenan Falls. The Guiana Shield underlies Guyana (previously British Guiana), Suriname (previously Dutch Guiana), and French Guiana (or Guyane), much of southern Venezuela, as well as parts of Colombia and Brazil.
The northern Guiana Shield, including Guyana is separated from Southern Guiana Shield by ENE to NE trending Tumbes /Guayaquil - Tacutu Tectonic Lineament. This is a major regional pre-Cambrian shear zone / mega-shear which is believed to have been re-activated several times.
They are a western extension of the Guiana Shield. Caño Cristales is a fast-flowing river with many rapids and waterfalls. Small circular pits known as giant's kettles can be found in many parts of the riverbed, which have been formed by pebbles or chunks of harder rocks. Once one of these harder rock fragments falls into one of the cavities ...
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 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 Cerros de Mavicuri are three hills, located in eastern Colombia, 50 km (31 mi) south of the city of Inírida on the Inírida River.Geologically, the mountains are part of the Guiana Shield.
Guyana belongs to the Guiana Shield, a massif extending north of the Amazon, between the Andes Mountains and the Atlantic, made up of Precambrian rocks dated to between 2.7 and 3.5 billion years ago. The shield consists of several geological units: the southern peneplain, the Inini synclinorium, the central granite massifs and the northern ...
The Iwokrama Forest is a 3,716 square kilometres (1,435 sq mi) nature reserve of central Guyana located in the heart of the Guiana Shield, [2] one of the four last pristine tropical forests in the world (Congo, New Guinea, and the Amazon rainforest are the others). [3]