Journal
GEOLOGICA CARPATHICA
Volume 64, Issue 6, Pages 419-435Publisher
SLOVAK ACAD SCIENCES GEOLOGICAL INST
DOI: 10.2478/geoca-2013-0029
Keywords
Western Carpathians; Tatra Mountains; U-Pb zircon geochronology; Goryczkowa granitoids
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Funding
- Polish Ministry of Sciences and Higher Education
- MNiSW [2 P04D 003 29, N 307 027837, DEC-2012/07/B/ST10/04366]
- Austrian Science Fund FWF (START Project) [267-N11, P18202-N10]
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The geochemical characteristics as well as the LA-MC-ICP-MS U-Pb zircon age relationship between two granitoid suites found in the Goryczkowa crystalline core in the Western Tatra Mountains were studied. The petrological investigations indicate that both granitoid suites were emplaced at medium crustal level, in a VAG (volcanic arc granites) tectonic setting. However, these suites differ in source material melted and represent two different magmatic stages: suite 1 represents a high temperature, oxidized, pre-plate collision intrusion, emplaced at ca. 371 Ma while suite 2 is late orogenic/anatectic magma, which intruded at ca. 350 Ma. These data are consistent with a period of intensive magmatic activity in the Tatra Mountain crystalline basement. The emplacement of granitoids postdates the LP-HT regional metamorphism/partial melting at ca. 387 Ma and at 433-410 Ma, imprinted in the inherited zircon cores.
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