@article{d448222cc64d4da7bc5038c8d750f6c1,
title = "Tracing proto-Rheic - Qaidam Ocean vestiges into the Western Tatra Mountains and implications for the Palaeozoic palaeogeography of Central Europe",
abstract = "Zircon petrochronology from amphibolites and retrogressed eclogites from the basement of the Western Tatra Mountains (Central Western Carpathians) reveals a complex rock evolution. An island-arc related basaltic amphibolite from 2iarska Valley shows three distinct zircon forming events: igneous zircon growth at ca. 498 Ma (Middletlate Cambrian) and two phases of amphibolite-facies metamorphism at ca. 470 Ma (Early Ordovician) and at ca. 344 Ma (Early Carboniferous). A retrogressed eclogite from Baranec Mountain records two zircon forming events: metamorphic zircon growth under eclogite-facies conditions at ca. 367 Ma (Late Devonian) and amphibolite-facies metamorphism at ca. 349 Ma (Early Carboniferous). These data contribute towards understanding and correlating major tectonothermal events that shaped the eastern margin of Gondwana in the Early Palaeozoic and its subsequent Variscan evolution. The metabasites record vestiges of two completely independent oceanic domains preserved within the Central Western Carpathians: (1) An Ediacaran to Cambrian oceanic arc related to the proto-Rheic - Qaidam oceans and metamorphosed to amphibolite-facies in the Early Ordovician subduction of the proto-Rheic - Qaidam arc during the Cenerian orogeny (ca. 470 Ma) and (2) late Devonian oceanic crust related to a back-arc basin (Pernek-type), formed by the opening of the Paleotethys and metamorphosed to eclogite-facies during Devonian subduction (ca. 367 Ma). The common Variscan and later evolution of these oceanic remnants commenced with amphibolite-facies metamorphic overprinting in the Early Carboniferous (amphibolite: ca. 344 Ma; retrogressed eclogite: ca. 349 Ma) related to an Early Variscan consolidation and the formation of Pangea. None of the investigated rocks of the Central Western Carpathians show any evidence of being chronologically or palaeogeographically related to the Rheic Ocean, therefore any prolongation of the Rheic suture from the Sudetes into the Alpine-Carpathian realm is highly problematic. Instead, the Southern and Central Alpine Cenerian orogeny can be traced into the Central Western Carpathians. (C) 2020 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.",
keywords = "Cenerian Orogeny, Central Western Carpathians, Proto-Rheic Ocean, Qaidam Ocean, Zircon chemistry, Zircon dating",
author = "Jolanta Burda and Urs Kl{\"o}tzli and Jaros{\l}aw Majka and David Chew and Li, \{Qiu Li\} and Yu Liu and Aleksandra Gaw{\c e}da and Michael Wiedenbeck",
note = "Funding Information: Monika Horschinegg and Franz Biedermann (University of Vienna, Austria) are thanked for the help in sample preparation and with Sr and Nd isotope determinations. We would like to thank the staff at the Beijing SIMS Laboratory (State Key Laboratory of Lithospheric Evolution, CAS, Beijing, China) and NORDSIM laboratory (Swedish Natural History Museum in Stockholm) for their invaluable help in acquiring the SIMS data. The NordSIM facility was supported by the research councils of Sweden and Norway, the Consortium of Danish geoscience institutions, the University of Iceland, the Geological Survey of Finland and the Swedish Museum of Natural History. This is the NordSIM publication \#667. Likewise, we express our appreciation to Fr{\'e}d{\'e}ric Couffignal for overseeing the analytical process for the oxygen isotope ratio determinations in Potsdam. Financial means provided by the BS fund of the University of Silesia in Katowice to JB are also acknowledged. QL acknowledges funding by the National Nature Sciences Foundation of China (Grant no. 41673059 ). DC acknowledges support by a research grant from Science Foundation Ireland under Grant Number 13/RC/2092, which is co-funded under the European Regional Development Fund and by PIPCO RSG and its member companies. National Science Centre (NCN) grant no. 2012/07/B/ST10/04366 (awarded to AG) financed the field and initial analytical work. UK did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. Franz Neubauer and two anonymous reviewers are thanked for their insightful comments. Publisher Copyright: {\textcopyright} 2020 International Association for Gondwana Research Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",
year = "2021",
month = mar,
doi = "10.1016/j.gr.2020.12.016",
language = "English",
volume = "91",
pages = "188--204",
journal = "Gondwana Research",
issn = "1342-937X",
publisher = "ELSEVIER SCIENCE BV",
}