| Dekov, Vesselin M., Maynard, J. Barry, Kamenov, George D., Rouxel, Olivier, Lalonde, Stefan, Juranov, Sava (2020) Origin of the Oligocene manganese deposit at Obrochishte (Bulgaria): Insights from C, O, Fe, Sr, Nd, and Pb isotopes. Ore Geology Reviews, 122. 103550pp. doi:10.1016/j.oregeorev.2020.103550 | Journal (article/letter/editorial) | com/locate/oregeorev Origin of the Oligocene manganese deposit at Obrochishte (Bulgaria): Insights from C, O,...Sofia, Bulgaria b ARTICLE INFO ABSTRACT Keywords: Mn metallogenesis C-O-Fe-Sr-Nd-Pb isotopes Early Oligocene...Proto-Black Sea geochemistry The large manganese (Mn) deposit at Obrochishte (NE Bulgaria) is part of a cluster...constitute the Earth’s second largest endowment of Mn, after the Kalahari Manganese Field in Africa. We...genesis of this deposit. Carbon isotope data indicates that some sections of the Mn-ore layer have diagenetic |
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