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This paper shows the results of petrographic analyses of raw materials used for making the ground stone industry implements in two Vinca culture sites Vinca and Belovode. The assemblages from the aforementioned sites feature a number of specific characteristics. In Vinca, in late strata, a kind of devaluation in the selection of stone raw materials is registered, which is closely related to the decline in quality of stone processing and may be a consequence of territorial narrowing of the Vinca culture per se in its later phases, and of introduction of metallurgy in everyday life. For this reason an analogy with the Belovode site was made, which subsists only throughout the early phase of the Vinca culture and is doubtlessly a metallurgic settlement. Petrographic analyses of the raw materials from which ground stone tools used to be made at the Vinca and Belovode sites are only a part of the commenced petro-archaeological research. They imply that further investigations should focuses on field work, principally in the vicinity of the sites themselves. Primarily by petrographic, and, as applicable, by other analyses of samples brought from the field work, and by comparison of the tools, it could be possible to define more precisely the territory from which the raw materials originated.

The study presents age data and petrologic characteristics of igneous rocks of the Zdraljica ophiolitic complex (ZOC), situated in central Serbia, 150 km south of Belgrade. The complex consists predominately of a MORB/VAB-like tholeutic suite, represented mostly by gabbros and diabases. The tholeiitic suite is intruded by calc-alkaline intermediate and acid magmas of a VA-affinity, which presumably formed in a pre-collisional setting. The whole complex is intruded by peraluminous granite magmas. The crystallization age of the calc-alkaline pre-collisional quartzdiorite is 168.4?6.7 Ma and it post-dates the formation of the here exposed ocean?ic crust. Geological evidence suggest that the emplacement of the complex occurred during the Upper Jurassic. With respect to their petrology and age, the Zdraljica ophiolitic rocks are similar to the south Apuseni Mts. ophiolites, situated to the north, and to the Kursumija and Guevgeli ophiolites, situated to the south. All these ophiolites probably formed as parts of a single Jurassic belt, which can be termed the eastern branch of the Vardar Zone.

The ophiolitic complex of Zdraljica (Central Serbia) belongs to the Eastern Branch of the Vardar suture zone. It was emp'aced during the Upper Jurassic. The complex consists predominately of a MORB/VAB-like tholeiitic suite, represented mostly by gabbros and diabases. Small occurrences of cummulitic peridotites, basalts and plagiogranites also appear. The tholeiitic suite is intruded by calc-alkaline intermediate and acid magmas. Geochemical data suggest that the ZOC tholeiitic rocks originated by partial melting of a spinel-lherzolite source. Non-modal batch melting modeling indicates 10 to 15 % of partial melting of such a source. The magmas were later modified by fractional crystallization. One-step major element modeling requires 40% (F=0.60) of fractional crystallization of a mineral assemblage: PI52 gCpxi2 5OI26 iTtn2 9Ap4.4Mgt1.0-The model is supported by the variation patterns of most trace elements.