The mineralogy of two Neogene ore provinces in Romania: review and additional data

摘要

Mineralogical studies of ores from the Metaliferi Mts. and Baia Mare districts, Romania, underline both the important similarities and differences between the fields. In Baia Mare, stibnite and a broad variety of Pb-As and Pb-Sb sulphosalts are abundant at upper levels. Telluride-rich assemblages occur in the same position in Metaliferi Mts., whereas Pb-As and Pb-Sb sulphosalts appear mainly at deeper levels. Bi-sulphosalts occur in deeper positions in both districts and accompany Au enrichment. Mineralogy helps to define zonation of the individual systems and assists with regional correlation.