Petrology and geochemistry of rapakivi-type granites from the crystalline basement of NE Poland

Authors

  • Bogusław Bagiński Institute of Geochemistry, Mineralogy and Petrography, Warsaw University, Żwirki i Wigury 93, PL-02-089 Warszawa
  • Jean-Clair Duchesne L.A. Géologie, Pétrologie, Géochimie Université de Liége (Bat. B20) B-4000 Sart Tilman
  • Jacqueline Vander Auwera L.A. Géologie, Pétrologie, Géochimie Université de Liége (Bat. B20) B-4000 Sart Tilman
  • Hervé Martin Laboratoire Magmas et Volcans, Université Blaise Pascal, 5 rue Kessler, 63038 Clermont-Ferrand
  • Janina Wiszniewska Polish Geological Institute, Rakowiecka 4, PL-00-975 Warszawa

Keywords:

Mazury complex, rapakivi-type granites, jotunite, granite modelling

Abstract

80 rock samples from drill-cores at 8 localities in the Mazury complex (Polish part of the crystalline East European Craton), representing rock types from monzodiorites to leucogranites, were studied for major, trace and REE elements by XRF and ICP-MS methods. The range in composition of the investigated rocks varies from 46 to 76% SiO2 contents. All of them show similar REE distributions, which suggests that they are genetically linked. They also plot along a major trend with many similarities to the jotunitic liquid line of descent defined in AMCG rocks from Rogaland (Norway). Each group of rocks has however its own specific pattern of elements. 

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Published

2012-11-30

Issue

Vol. 45 No. 1 (2001)

Section

Articles

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