http://hdl.handle.net/20.500.12128/8945
Title: | LA-ICP-MS U-Pb dating and REE patterns of apatite from the Tatra Mountains, Poland as a monitor of the regional tectonomagmatic activity |
Authors: | Gawęda, Aleksandra Szopa, Krzysztof Chew, David |
Keywords: | apatite; U-Pb age; REE patterns; Tatra Mountains |
Issue Date: | 2014 |
Citation: | Geochronometria, Vol. 41, iss. 4, (2014), s. 306-314 |
Abstract: | This study presents apatite LA-ICP-MS U-Pb age and trace elements concentrations data from different granite types from the Tatra Mountains, Poland. Apatite from monazite and xenotime-bearing High Tatra granite was dated at 339 ± 5 Ma. The apatite LREE patterns reflect two types of magmas that contributed to this layered magma series. Apatite from a hybrid allanite-bearing diorite from the Goryczkowa Unit was dated at 340 ± 4 Ma with apatite LREE depletion reflecting the role of allanite and titanite during apatite crystallization. Apatite crystals from a hybrid cumulative rock from the Western Tatra Mountains were dated at 344 ± 3 Ma. Apatite is one of the main REE carriers in this sample and exhibit flat REE patterns. Taking into account the relatively low closure temperature of the U-Pb system in apatite (350–550°C), the c. 340 Ma apatite ages mark the end of high temperature tectonometamorphic activity in the Tatra Mountains. |
URI: | http://hdl.handle.net/20.500.12128/8945 |
DOI: | 10.2478/s13386-013-0171-0 |
ISSN: | 1733-8387 |
Appears in Collections: | Artykuły (WNP) |
File | Description | Size | Format | |
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Gaweda_LA_ICP_MS_U_Pb_dating_and_REE.pdf | 1,6 MB | Adobe PDF | View/Open |
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