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Geology of Sweden information


Geological map of Fennoscandia.
  Archean rocks of the Karelia, Belomorian and Kola domains
  Proterozoic rocks of the Karelia and Kola domains
  Svecofennian Domain
  Transscandinavian Igneous Belt
  Timanide Orogen
  Sveconorwegian Orogen inc. the Western Gneiss Region
  Caledonian nappes

The geology of Sweden is the regional study of rocks, minerals, tectonics, natural resources and groundwater in the country. The oldest rocks in Sweden date to more than 2.5 billion years ago in the Precambrian. Complex orogeny mountain building events and other tectonic occurrences built up extensive metamorphic crystalline basement rock that often contains valuable metal deposits throughout much of the country. Metamorphism continued into the Paleozoic after the Snowball Earth glaciation as the continent Baltica collided with an island arc and then the continent Laurentia. Sedimentary rocks are most common in southern Sweden with thick sequences from the last 250 million years underlying Malmö and older marine sedimentary rocks forming the surface of Gotland. [1]

  1. ^ Moores & Fairbridge 1997, pp. 690–703.

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