Continent Europe and Asia together as a single continent, dubbed "Eurasia". In this model, the world is divided into six continents, with North America and South America considered separate continents. Geologists use the term "continent" in a different manner from geographers. In geology a continent is defined by continental crust: a platform of metamorphic and igneous rock, largely of granitic composition. Some geologists restrict the term 'continent' to portions of the crust built around stable Precambrian "shield", typically 1.5 to 3.8 billion years old, called a craton. The craton itself is an accretionary complex of ancient mobile belts (mountain belts) from
Karain semi-continent about the status of other countries in Karain at that time is provided. Three offshore volcanic islands, Carnia, Kernia, and Ferrin, have been known since 1472. They supply the Islandians with iron, copper, and other minerals. The largest river in the semi-continent is the Karain River, which runs more or less south-to-north. At its mouth is one of the largest river deltas in the world, rivaling that in Louisiana. The largest city on the delta is Shobo-n-Po, which is independent. There is a great deal of pirate activity near the city. Not counting the arid Col Plateau, the interior of