 | 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...solid proofs for presence of these minerals in the deposit. (Neotocite was determined on the basis of: three |  | | 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) | | 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) | | 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...1134/S1075701506030032 INTRODUCTION The South Faizulino deposit, which is situated in the southern Urals 20 km...grade of metamorphism of ore-bearing rocks at the deposit is not higher than the conditions of prehnite–pumpellyite...for this deposit. The available information on the mineralogy of the South Faizulino deposit have so far |  | | Book (volume) | | considerably lower than for gold; comparable with that of pyrite (~55%). Semiquantitative Laser microspectral analysis...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...the sphalerite-chalcopyrite-galena pyrite ores from the Sadon deposit, Northern Caucasus, Russia. The other...rock types, and in association with pyrrhotite, pyrite, chalcopyrite, quartz, and, sometimes, galena and |  | | Book (volume) | | Ostrosi Romania by V. Ianovici and M. Borcos Bulgaria by B. Bogdanov Greece by G. Marinos Cyprus by... Zr, Mn, Al, Mg, REEs Non-metallic commodities Pyrite, sulphur, phosphates, borates, potash, salt, diamond..._ 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 |  | | Report (issue) | | ...........................................L5 Deposit Types ...........................................0.03527 0.03215075 32.15075 2.205 1.102 0.9842 Deposit grade 0.0291667 Pressure 10 10,000 Density 62.4220...short (2,000 lb) 0.9072 ton, long (2,240 lb) 1.016 Deposit grade ounce per short ton (2,000 lb) (oz/T) 34...given in microcuries per milliliter (μCi/mL). Deposit grades are commonly given in percent, grams per...conditions, as does the discussion below regarding deposit types. Mineralogy Manganese occurs as a trace |  | | Report (issue) | | geology and global distribution of the mineral deposit types that account for the present and possible...framework and development of geoenvironmental mineral-deposit models. vi Chapters C through V describe individual...barite deposits and districts, color-coded by deposit type.............................................of volcanogenic beryllium deposits and related deposit types, gelogic map of Spor Mountain area in Utah...percentage of world cobalt mine production in 2011, by deposit type.......................................... |
|
