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  1. Article

    Open Access

    The effect of low-temperature annealing on discordance of U–Pb zircon ages

    Discordant U–Pb data of zircon are commonly attributed to Pb loss from domains with variable degree of radiation damage that resulted from α-decay of U and Th, which often complicates the correct age interpret...

    Maria Herrmann, Ulf Söderlund, Anders Scherstén, Tomas Næraa… in Scientific Reports (2021)

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    Article

    Spatial and temporal distribution patterns of Precambrian mafic dyke swarms in northern Mauritania (West African craton): analysis and results from remote-sensing interpretation, geographical information systems (GIS), Google Earth ™ images, and regional geology

    We used remote sensing, geographical information systems, Google Earth™ images, and regional geology in order to (i) improve the map** of linear structures and understand the chronology of different mafic dy...

    Moussa Hamath Ba, Hassan Ibouh, Khalidou Lo… in Arabian Journal of Geosciences (2020)

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    Chapter

    Neoarchean-Mesoproterozoic Mafic Dyke Swarms of the Indian Shield Mapped Using Google Earth™ Images and ArcGIS™, and Links with Large Igneous Provinces

    We present dyke swarm maps generated using Google Earth™ images, ArcGIS™, field data, and available geochronological ages of Neoarchean-Mesoproterozoic (ranging in age from ~2.80 to ~1.10 Ga) mafic dyke swarms...

    Amiya K. Samal, Rajesh K. Srivastava… in Dyke Swarms of the World: A Modern Perspec… (2019)

  4. Article

    Dyke swarms: keys to paleogeographic reconstructions

    第七届国际岩墙会议于2016年8月在北京召开。会议的主题为“岩墙群——古地理重建的钥匙”。与会学者认为,过去10年,学术界在岩墙群和相关单元区域地质填图,以及通过大型岩墙群等大岩浆岩省进行超大陆/古大陆重建等方面取得了重要成就。另外一些方向是未来几年有发展潜力并可望取得重大进展的领域,如,1)岩墙群/岩床群(杂岩)的侵位机制;2)岩墙群的岩石成因、构造背景和地质意义;3)地外星体上的岩墙群和相关建造;4)岩墙群及相...

    Peng Peng, Richard E. Ernst, Guiting Hou, Ulf Söderlund… in Science Bulletin (2016)

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    Article

    A late Archaean radiating dyke swarm as possible clue to the origin of the Bushveld Complex

    The origin of the Bushveld Complex, South Africa, is elusive. Identification and dating of a radial swarm of volcanic dykes suggests that a mantle plume affected the region, but was active 600 million years be...

    Johan R. Olsson, Ulf Söderlund, Michael A. Hamilton, Martin B. Klausen… in Nature Geoscience (2011)

  6. No Access

    Article

    Mesozoic rift magmatism in the North Sea region: 40Ar/39Ar geochronology of Scanian basalts and geochemical constraints

    More than 100 volcanic necks composed of basanites and melanephelinites occur in Scania, southern Sweden, at the junction of two major tectonic lineaments, the Phanerozoic Sorgenfrei-Tornquist Zone (STZ) and t...

    Ingemar Bergelin, Karsten Obst, Ulf Söderlund… in International Journal of Earth Sciences (2011)

  7. No Access

    Article

    Mesoproterozoic (1.47–1.44 Ga) orogenic magmatism in Fennoscandia; Baddeleyite U–Pb dating of a suite of massif-type anorthosite in S. Sweden

    The Jönkö** Anorthositic Suite (JAS) in S. Sweden has characteristics typical for (Proterozoic) massif-type anorthosites. The interstitial liquid of these plagioclase-porphyritic rocks solidified at 1,455 ± ...

    Linus Brander, Ulf Söderlund in International Journal of Earth Sciences (2009)

  8. No Access

    Article

    U–Pb baddeleyite ages and Hf, Nd isotope chemistry constraining repeated mafic magmatism in the Fennoscandian Shield from 1.6 to 0.9 Ga

    The Palaeoproterozoic (1.90–1.60 Ga) crust of central Fennoscandia was intruded repeatedly by dolerite dikes and sills during the Neo- and Mesoproterozoic eons. We report 17 new baddeleyite U–Pb dates comprisi...

    Ulf Söderlund, Clark E. Isachsen, Göran Bylund… in Contributions to Mineralogy and Petrology (2005)