The Kattsund-Koster dyke swarm is a collection of dykes of Mesoproterozoic age in southeastern Norway and the West Coast of Sweden. The most prominent outcrops are in the Koster Islands in Sweden and Kattsund in Norway, hence the name. The dykes are made up of tholeiitic diabase and some dykes of intermediate composition. Some dykes are deformed and metamorphosed into amphibolite. Radiometric dating has shown that the dyke swarm is about 1421 million years old. Geologists have suggested that the dyke swarm is related to extensional tectonics.[1]
See also
References
🔥 Top keywords: Main PageSpecial:SearchWikipedia:Featured picturesYasukeHarrison ButkerRobert FicoBridgertonCleopatraDeaths in 2024Joyce VincentXXXTentacionHank AdamsIt Ends with UsYouTubeNew Caledonia2024 Indian general electionHeeramandiDarren DutchyshenSlovakiaKingdom of the Planet of the ApesAttempted assassination of Robert FicoLawrence WongBaby ReindeerXXX: Return of Xander CageThelma HoustonFuriosa: A Mad Max SagaMegalopolis (film)Richard GaddKepler's SupernovaWicked (musical)Sunil ChhetriXXX (2002 film)Ashley MadisonAnya Taylor-JoyPlanet of the ApesNava MauYoung SheldonPortal:Current eventsX-Men '97