Nabatian, G., Li, X. H., Honarmand, M., & Melgarejo, J. C. (2017): Geology, mineralogy and evolution of iron skarn deposits in the Zanjan district, NW Iran: Constraints from U-Pb dating, Hf and O isotope analyses of zircons and stable isotope geochemistry. Ore Geology Reviews, 84, 42-66.