RESEARCH PAPER
U-Pb zircon age of the youngest magmatic activity in the High Tatra granites (Central Western Carpathians)
1
Faculty of Earth Sciences, University of Silesia, Będzińska 60, 41-200, Sosnowiec, Poland
2
Department of Lithospheric Research, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
Online publication date: 2013-03-16
Publication date: 2013-06-01
Geochronometria 2013;40(2):134-144
KEYWORDS
ABSTRACT
Detailed cathodoluminescence (CL) imaging of zircon crystals, coupled with Laser Ablation Multi-Collector Inductively Coupled Plasma Mass Spectrometry (LA-MC-ICP-MS) U-Pb zircon dating was used to develop new insights into the evolution of granitoids from the High Tatra Mountains. The zircon U-Pb results show two distinct age groups (350±5 Ma and 337±6 Ma) recorded from cores and rims domains, respectively. Obtained results point that the last magmatic activity in the Tatra granitoid intrusion occurred at ca. 330 Ma. The previously suggested age of 314 Ma reflects rather the hydrothermal activity and Pb-loss, coupled with post-magmatic shearing.
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