Contents
Eoalpine (Cretaceous) very low- to low-grade metamorphism recorded on the illite-muscovite-rich fraction of metasediments from South Tisia (eastern Mt Papuk, Croatia)
Published: Dec 2010
Pages: 469 - 481
DOI: https://doi.org/10.2478/v10096-010-0029-9
Authors: VANJA BISEVAC, KADOSA BALOGH, DRAZEN BALEN, DARKO TIBLJAS
Abstract: Eoalpine very low- to low-grade metamorphism related to Cretaceous orogenesis has been investigated in the Slavonian Mts, Croatia. Samples belonging to the Psunj metamorphic complex (PMC), the Radlovac metamorphic complex (RMC) and Permian-Triassic and Triassic sedimentary sequences (PTSS) were studied. The Kübler and Arkai indices of all the analysed samples indicate high-anchizonal to epizonal metamorphism. The degree of Eoalpine metamorphism tends to be constant in all samples implying that the different complexes passed through and recorded the same event. Measurements of illite-white K-mica b0-parameter of the RMC samples imply transitional low- to medium-pressure character of the metamorphism. These data together with K-Ar ages (~100–80 Ma) measured on illite-white K-mica rich
Keywords: Eoalpine metamorphism, South Tisia, Radlovac metamorphic complex, thermobarometry, geochronology, Kubler index, Arkai index, K-Ar dating
Download PDF documentVolume 61 no. 6 / December 2010
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