Prehistoric Slags from the Metal Ages in teh Vicinity of Bor (NE Serbia)

,,Timok eruptive basin” was very densely settled during the Early and Middle Bronze Ages, exclusively by copper ore miners and collectors during the 3rd and 2nd millennium BC. During the last century, discoveries connected to copper metallurgy were identified at 3 settle ments, and after a series of excavations undertaken in the last ten years, at least 3 sites with similar situation were discovered too. Due to the surveys carried out in 2020, the number of sites where prehistoric metallic slag where discovered increased by another 4. Main topic of this paper has been to explain the character of the prehistoric sites where the objects of copper ore smelting were identify. Physicometrical analysis and grained results of the aforementioned metallic slags, some information regarding the method of ore smelting technology, characteristic for this part of Southeastern Europe can be revailed.