Demographics of South America from Spain. South America is also home to 124 million Castizo, Mestizo or Caboclo people (citizens whose DNA is mostly European spanning from 65 to 90% European genes with considerable Indigenous admixture) and 27 million people with pure Indigenous extraction, mostly found in Peru, Bolivia, Ecuador, Chile and parts of Argentina. Mestizos make the majority in Paraguay, Venezuela, Colombia and Ecuador. Black phenotype and Mulatto population are respectively 18 and 48 million, when combined 66 million. Mulattos have a range of 60 to 80% European genes and are mostly found in Brazil, Colombia, Venezuela, Ecuador, Guyana, Suriname and French Guiana
Guiana Shield Guiana Shield The Guiana Shield is one of the three cratons of the South American Plate. It is a 1.7 billion-year-old Precambrian geological formation in northeast South America that forms a portion of the northern coast. The higher elevations on the shield are called the Guiana Highlands, which is where the table-like mountains called tepuis are found. The Guiana Highlands are also the source of some of the world's most spectacular waterfalls such as Angel Falls, Kaieteur Falls and Kuquenan Falls. The Guiana Shield underlies Guyana (previously British Guiana), Suriname (previously Dutch Guiana) and French Guiana (or Guyane), most of