Geology of Finland subsequent uplift and erosion would have eroded all of these sediments. In Finland, Caledonian nappes overlie shield rocks of Archean age. Despite occurring in about the same area the Scandinavian Caledonides and the modern Scandinavian Mountains are unrelated. The ice sheet that covered Finland intermittently during the Quaternary grew out from the Scandinavian Mountains. By some estimates the Quaternary glaciers eroded away on average 25 m of rock in Finland, with the degree of erosion being highly variable. Some of the material eroded in Finland has ended up in Germany, Poland, Russia and the Baltic states. Ground till left by
Poland–Sweden relations the power of each. At peak, the Swedes invaded Poland once, known as the Swedish Deluge, which later had razed much of Poland after serious destructions by the Swedish invaders. At 18th century, the partitions of Poland was the main hot detail in Sweden awake of the fear being partitioned by Russia, but after Russo–Swedish war ended in 1790, successful diplomatic missions from Sweden had finally prevented Sweden from suffering the same fate like Poland. Sweden was the main destination for many immigrants from partitioned Poland. During both World War I and World War II, the Polish community in Sweden