 | 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) | | Origin of the Oligocene manganese deposit at Obrochishte (Bulgaria): Insights from C, O, Fe, Sr, Nd,...Sofia, 15 Tzar Osvoboditel Blvd., 1000 Sofia, Bulgaria b ARTICLE INFO ABSTRACT Keywords: Mn metallogenesis...geochemistry The large manganese (Mn) deposit at Obrochishte (NE Bulgaria) is part of a cluster of similar...Nd, Pb) to help understand the genesis of this deposit. Carbon isotope data indicates that some sections...Mn-ore layers was composed of Mn-silicates (e.g., neotocite), but they did not provide any solid proofs for |  | | Journal (article/letter/editorial) | | hydrosilicates rich in iron. The Obrochishte manganese deposit, Bulgaria, is discussed as a nonmetamorphic...e ore d e p o s i t of O b r o c h i s h t e , Bulgaria, is r e g a r d e d as a n o n m e t a m o r p...the Obrochishte Manganese Ore Deposit, Bulgaria The Obrochishte manganese ore deposit, Bulgaria, situated...coticule starting material. The genesis of this deposit, however, seems to be different from that proposed...coticules, as will be shown in detail below. The Obrochishte deposit, part of the northeast Bulgarian manganese |  | | Journal (article/letter/editorial) | | and others), the Mangyshlak Peninsula, northeast Bulgaria and northwest Turkey, as well as the small deposits...mineral composition of manganese ores. The Nikopol deposit, western ore field, Ordzhonikidze area, Shevchenko...the main types of manganese ores of the Nikopol deposit. Dot-and-dash line, the North American shale, average...deposits, Georgia (Avaliani, 1982). (I) Chiatura deposit, Perevisi Highland. 1—Karaganian – Sarmatian limestones...7—Pliocene (basalts); 8—major fault. (II) Shkmeri deposit. 1—Oligocene (a—clays of the Maikop Series, b—Mn |  | | Journal (article/letter/editorial) | | Conditions of Manganese Ore at the South Faizulino Deposit, the Southern Urals, Russia A. I. Brusnitsyn St...the South Faizulino hydrothermal– sedimentary deposit in the southern Urals has been studied; 32 minerals...and a gel-like Mn–Si phase. Rhodochrosite and neotocite were formed at the diagenetic stage. In the course...further increase in temperature and pressure, neotocite was replaced with caryopilite; ribbeite, tephroite...1134/S1075701506030032 INTRODUCTION The South Faizulino deposit, which is situated in the southern Urals 20 km |  | | Journal (article/letter/editorial) | | Brusnitsyn, Zhukov. The South Faizuly Manganese Deposit in the Southern Urals: Geology, Petrography, and...2, 2003 Abstract—The South Faizuly manganese deposit hosted in cherty rocks of the Magnitogorsk paleovolcanic...and cherty siltstones) are characterized. The deposit was formed in the following four consecutive stages:...supergene alteration and partial denudation of the deposit in the Mesozoic–Quaternary. Models of Mn-bearing...considered. INTRODUCTION The South Faizuly manganese deposit is situated in eastern Bashkyrtostan 20 km southwest |  | | Journal (article/letter/editorial) | | Anomalously low 13C values in the South Faizuly deposit testify to the large-scale oxidation of methane...AND THE ORIGIN OF CARBONATES The South Faizuly deposit is localized in cherty rocks of the Eifelian Bugulygyr...CCD level (Zaikov et al., 2002). The Kyzyltash deposit is situated at a higher stratigraphic level among...near the hydrothermal vent. In the South Faizuly deposit, jasperites make up a chain of thin (2–3 m) lenticular...occurs in the southern and northern areas of the deposit. The southern area is most interesting. Manganese |  | | Book (volume) | | Mn sphalerites from the Pai-Khoi Novaya Zemelya province given in [96]. For a ZnS-MnS-CdS composition diagram...sphalerite deposits (of the Taishu Metallogenetic Province, Japan), the richer their contents of Fe and some...sphalerite-chalcopyrite-galena pyrite ores from the Sadon deposit, Northern Caucasus, Russia. The other three younger...in the Luz vein of the Uchucchacua Ag-Mn-Pb-Zn deposit, Peru. Thus, at location C (refer to p. 55), wurtzite...coexisting with alabandite of the Troika Sn-Ag-Pb deposit, see p. 56. Gmelin Handbook Mn Main Vol. A2 References |  | | Book (volume) | | Ostrosi Romania by V. Ianovici and M. Borcos Bulgaria by B. Bogdanov Greece by G. Marinos Cyprus by..._ Belgium; Southeast Europe includes Albania, Bulgaria, Cyprus, Greece, Hungary, Romania and Yugoslavia;...metallogenic prounce The Dinaric metallogenic province The western Macedonian district Iron ore deposits...rock ; ‘ ; : Serbo—Macedonian _—_metallogenic The province The pre-Devonian merallGeeuie epoch The Hercynian...Mineral deposits Internal zones External zones Bulgaria by B. Bogdanov Introduction : Structural netallogenic |
|
