期刊名称：Geological Survey of Denmark and Greenland Bulletin
印刷版ISSN：1604-8156
出版年度：2018
卷号：42
页码：127-131
语种：English
出版社：De Nationale Geologiske Undersoegelser for Danmark og Groenland
摘要：The fully cored Blokelv-1 borehole was drilled in 2008 through Upper Jurassic sediments in the Jameson Land Basin, East Greenland (Bojesen-Koefoed et al. 2009), in order to study the sedimentary succession (Fig. 1A). The sediments in Jameson Land are intruded by many Cenozoic dykes and sills (e.g. Noe-Nygaard 1976; Hald & Tegner 2000), and one of the site selection criteria was to minimise the risk of encountering thick igneous intrusions during drilling. Although major intrusions were avoided, the 233.8 m succession in the Blokelv-1 core is cut by intrusive igneous rocks at four levels with a combined thickness of 4.1 m (Fig. 1B). The purpose of this paper is to present descriptions and analyses of these intrusions and compare them with other Cenozoic dyke and sill intrusions in northern East Greenland.
