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
Finland–Russia border difference between the checkpoints (Eastern European Time and Moscow Time), one hour in winter. On 27 December 2015, Finland blocked access for people to cross over Russian border on bicycles via and Salla. According to the Finnish Border Guard, this measure was to limit illegal immigration and ensure safety on slippery roads. The Finnish Border Guard stated that organized traffickers had their clients cross the border by biking in order to avoid being captured on the Finnish side and prosecuted for organizing illegal immigration, which is a felony in Finnish law. In response, asylum seekers started to cross the border