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UDC: 551.26
DOI: 10.14438/gn.2014.16
submitted: 2014-08-01, accepted: 2014-10-20, published: 2014-10-31

Intrusive rocks from Polumir and Željin (Serbia): two contrasting granitоid types

Milenko Vukov1*

1University of Belgrade, Faculty of Mining and Geology, Serbia

Abstract. This paper outlines correlation of the most distinctive features of intrusive rocks from Polumir (granite from Polumir, Polumir granite) and from Željin (Željin granitoid). Although these two intrusions are notable similar in space (10-12 km) and time (beginning of Miocene), they are very different, even contrasting concerning their petrography, genesis and geotectonic. Mineralogy, petrology and chemistry of Polumir granite (P≈2.5 km2), and of Željin quartz diorite and tonalite, as well as of granodiorite and granite (P≈56 km2), i.e. properties that directly reflect on their genesis and geotectonic setting, are presented in this paper. Chemistry of biotite, the only mineral observed in both plutons, as the direct evidence of different physical-chemical conditions during consolidation and proof for their genetic contrast, is contributed.

Keywords. Polumir, Željin, biotite, genesis, geotectonic, I- and S- type

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