Correction: Osmium isotope analysis as an innovative tool for provenancing ancient iron: A systematic approach.

[This corrects the article DOI: 10.1371/journal.pone.

Osmium isotope analysis as an innovative tool for provenancing ancient iron: A systematic approach.

The innovation of iron production is often considered one of the greatest technological advances in human history. A reliable provenancing method for iron is instrumental for the reconstruction of economic, social and geo-political aspects of iron production and use in antiquity. Although the potential of osmium isotopes analysis for this purpose has been previously suggested, here we present for the first time the results of osmium isotope analysis of ores, bloom and metal obtained from a set of systematic, bloomery iron-smelting experiments, utilizing selected ores from the Southern Levant.