Abstract
Detailed micropalaeontological research of Jurassic siliceous rocks was performed at the locality Komarani on the eastern flanks of the area of Mt. Zlatar in SW Serbia. According to the determined radiolarian associations, the investigated radiolarites are of Late Bajocian to Early Callovian age.
Highlights
The investigated area is situated in western Serbia, in an extremely complex geotectonic setting (Fig. 1)
Petrographic and geochemical differences between the ophiolites of the two belts were used as evidence for the existence of two distinct oceanic basins, originally separated by one or several Adria-derived micro-continents (ROBERTSON & KARAMATA 1994; DIMITRIJEVIĆ 1997 and KARAMATA 2006)
The more external belt is known as the Dinaridic Ophiolite Belt (PAMIĆ et al 2002 and KARAMATA 2006) or the Central Dinaridic Ophiolite belt (LUGOVIĆ et al 1991), while the internal belt is known as the Vardar Zone Western Belt (KARAMATA 2006), Inner Dinaridic ophiolite belt (LUGOVIĆ et al 1991), External Vardar Subzone (DIMITRIJEVIĆ 1997, 2001) or the Vardar Zone (PAMIĆ et al 2002)
Summary
The investigated area is situated in western Serbia, in an extremely complex geotectonic setting (Fig. 1). The more external belt is known as the Dinaridic Ophiolite Belt (PAMIĆ et al 2002 and KARAMATA 2006) or the Central Dinaridic Ophiolite belt (LUGOVIĆ et al 1991), while the internal belt is known as the Vardar Zone Western Belt (KARAMATA 2006), Inner Dinaridic ophiolite belt (LUGOVIĆ et al 1991), External Vardar Subzone (DIMITRIJEVIĆ 1997, 2001) or the Vardar Zone (PAMIĆ et al 2002) This “two ocean” model contrasts with that of PAMIĆ (1998), PAMIĆ et al (2000), CSONTOS et al (2003) and SCHMID et al (2008), who suggested that both ophiolitic belts originated in a single ocean. The radiolarites found at the locality Komarani could be a part of the ophiolitic mélange that structurally underlies the ophiolites of the Dinaridic Ophiolite Belt (KARAMATA et al 1997) They could represent the matrix (could be a block in the mélange) of the mélange formation of the East Bosnian– –Durmitor Unit (DJERIĆ et al 2007b). 1, External Dinarides (without subdivisions); 2, East Bosnian–Durmitor Unit; 3, Drina Ivanjica Unit
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