Bohus granite

Polished surface of a Bohus granite.
Simplified geological map of Sweden. The Bohus granites are shown as a belt in the northern Swedish West Coast.

The Bohus granite (Swedish: Bohusgranit) is a type of granite that crops out along the Swedish West Coast in Bohuslän. In Norway the same granites are termed Iddefjord granite (Norwegian: Iddefjordsgranitt[1]), Østfold granite[1] and Halden granite.[1] A large quarrying industry has developed around the granites, mainly producing blocks. Large scale extraction begun in the 1840s and employment in the quarries peaked in the 1920s with over 7,000 people working in the industry. The rock is valued for its durability.[2] In the first half of the 20th century the transport of quarried Bohus granite was done with the aid of by the Lysekil Line.[3] In Norway Iddefjord granite has been a relatively common rock in architecture, and many of the statues of Frogner Park in Oslo are made of Iddefjord granite. Iddefjord granite is the official county rock of Østfold in Norway.[1]

  1. ^ a b c d Inge, Bryhni; Askheim, Svein. "Iddefjordsgranitt". Store Norske Leksikon (in Norwegian). Retrieved 9 October 2017.
  2. ^ Cite error: The named reference EGU2015 was invoked but never defined (see the help page).
  3. ^ Sten, Rolf (24 February 2004). "Snabbfakta LyJ, Lysekils Järnväg" (in Swedish). historikst.nu. Retrieved 30 April 2017.