期刊名称：Geological Survey of Denmark and Greenland Bulletin
印刷版ISSN：1604-8156
出版年度：2014
卷号：31
页码：15-18
语种：English
出版社：De Nationale Geologiske Undersoegelser for Danmark og Groenland
摘要：Bornholm is situated in the Sorgenfrei–Tornquist Zone thatseparates the North-West European Craton from the BalticShield and the East European Platform (Fig.1). Te Precambrian basement of northern and eastern Bornholm consistsof different granitic and gneissic Mesoproterozoic rocks thatare dated to c. 1455 Ma (Waight et al. 2012). It appears fromthe age data that granitic magmatism, deformation and metamorphism occurred over a relatively short time period. Terocks contain abundant pegmatite and aplite bodies. Morethan 250 mafc dykes occur. Te dykes were intruded duringthree Precambrian events at c. 1326 Ma, 1220 Ma, 950 Maand during a Permian event at c. 300 Ma (Holm et al. 2010).
