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Provenance of Palaeozoic very low- to low-grade metasedimentary rocks of south Tisia (Slavonian Mountains, Radlovac complex, Croatia) (CROSBI ID 185048)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Biševac, Vanja ; Krenn, Erwin ; Finger, Fritz ; Lužar-Oberiter, Borna ; Balen, Dražen Provenance of Palaeozoic very low- to low-grade metasedimentary rocks of south Tisia (Slavonian Mountains, Radlovac complex, Croatia) // Geologica Carpathica, 64 (2013), 1; 3-22

Podaci o odgovornosti

Biševac, Vanja ; Krenn, Erwin ; Finger, Fritz ; Lužar-Oberiter, Borna ; Balen, Dražen

engleski

Provenance of Palaeozoic very low- to low-grade metasedimentary rocks of south Tisia (Slavonian Mountains, Radlovac complex, Croatia)

Monazite age dating, detrital heavy mineral content and whole rock geochemistry provided insight into the provenance, depositional history and palaeogeological setting of the Radlovac complex (RC) very low- to low grade metasedimentary rocks (south Tisia, Slavonian Mountains, Croatia). Electron microprobe based Th-U-Pb dating of detrital monazite indicates a Variscan age of the protolith (330±10 Ma). The detrital heavy mineral assemblages of representative metasedimentary rocks are dominated by apatite, zircon, tourmaline and rutile accompanied by minor quantity of epidote/zoisite, monazite and titanite. Judging from the heavy mineral assemblage, felsic igneous rocks serve as source material. This is consistent with the major and trace element spectrum of studied metasedimentary rocks characterized by high concentration of Th, high L+MREEs and high ratios of La/Sc, Th/Sc, La/Co, Th/Co and Th/Cr. The occurrence of magmatic monazite, zircon and xenotime and the absence of metamorphic heavy minerals suggest that granitoids, migmatites and migmatitic gneisses served as one major source for the metapsammites. Such rock types are commonly exposed in the Papuk complex of the older surrounding complexes, while the Psunj complex also contains metamorphic rocks. This is in good correlation with the monazite ages presented here which fits better with ages of Papuk complex representative rocks than with those of Psunj complex known from the literature. Overall, data show that RC represents the detritus of the local Variscan crust characterized by granitoid bodies, migmatites and migmatitic gneisses typical for the Papuk complex.

Provenance; south Tisia; Slavonian Mts.; Radlovac complex; metasedimentary rocks; detrital monazite; geochronology; heavy minerals; geochemistry.

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Podaci o izdanju

64 (1)

2013.

3-22

objavljeno

1335-0552

Povezanost rada

Geologija

Indeksiranost