Krzeminska, EwaWiszniewska, JaninaWilliams, Ian2015-12-080033-2151http://hdl.handle.net/1885/37449Three mafic-alkaline intrusive bodies in NE Poland: Ełk, Pisz and Tajno, have been dated recently with U-Pb SHRIMP method. An earlier Rb-Sr whole rock isochron of Ełk syenites pointed to an age 355±4 Ma, while K-Ar age estimates suggested a Late PaleozKeywords: basement rock; Carboniferous; craton; crystalline rock; emplacement; geochronology; igneous intrusion; magmatism; potassium-argon dating; uranium-lead dating; Central Europe; Eurasia; Europe; Poland; Cola acuminata Closure temperature; Early Carboniferous; Mafic-alkaline magmatism; NE Poland; U-Pb SHRIMP geochronology; Zircon20062015-12-08