Image: Yttre Ursholmen Kontakt Kosterdiabas i Nebulitisk-migmatitisk sedimentgnejs

Description: Contact between a dark-coloured tholeiitic dolerite dyke (about 1100 million years old) and light-coloured nebulitic migmatitic paragneiss (1800 million years old, Stora Le Marstrand Formation) in Kosterhavet National Park on Yttre Ursholmen island in the Koster Islands off the southwestern coast of Sweden. The rock association seen in the photograph belongs to the undeformed southernmost part of the Kattsund-Koster dyke swarm of the Kongsberg-Bamble-Østfold segment of the Sveconorvegian Province of the Baltic Shield.[1]
Title: Yttre Ursholmen Kontakt Kosterdiabas i Nebulitisk-migmatitisk sedimentgnejs
Credit: Flickr: Yttre Ursholmen Kontakt Kosterdiabas i Nebulitisk-migmatitisk sedimentgnejs
Author: Thomas Eliasson of Geological Survey of Sweden SGU
Permission: This image, which was originally posted to Flickr.com, was uploaded to Commons using Flickr upload bot on 12:36, 15 September 2011 (UTC) by Silverkey (talk). On that date, it was available under the license indicated. This file is licensed under the Creative Commons Attribution 2.0 Generic license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). http://creativecommons.org/licenses/by/2.0 CC BY 2.0 Creative Commons Attribution 2.0 truetrue
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