Mineralogical and Geochemical Characterization of Selected Bog Iron Ores and Archaeological Samples of Roasted Iron Ores and Iron Slags Towards Their Provenance Studies in the Podravina Region

The present contribution aims to summarise current state of the research in regard to iron ore occurrences and its usage for iron production in the Podravina region. Special attention is given to mineralogical and geochemical analysis results of soils, different bog iron types and archaeological samples of bog iron ores (roasted and unroasted) and iron slags in the study area. Results on the incompatible elements geochemistry of three iron slag types is presented. An attempt at provenance studies is given between bog iron ores and roasted iron ores, as well as between ores and iron slags. Such detailed analysis allows further discussion on the issue of iron ore provenance in the region and opens the discussion regarding development of iron smelting recipes, crafting, and trade through the Podravina region.