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Native Copper peeled from the Proterozoic Nonsuch Shale beds, White Pine Mine, Ontonagon County, Michigan. University of Waterloo Earth Sciences Museum Collection. Black fragments of shale still adhere to the copper. White Pine Mine was the last of the copper .
Black shale rock britannica black shale also called carboniferous shale variety of shale that contains abundant organic matter pyrite and sometimes carbonate nodules or layers and in some locations concentrations of copper nickel uranium and vanadium fossils are rare in the shale and either are replaced by pyrite or are preserved as. Details. Belt wash plant gold mining. Gold mining machine ...
99 %(3 K)
1-4-2010 · The role of indigenous microorganisms in the biotransformation of refractory organic-rich copper-bearing black shale ore (Kupferschiefer) was confirmed in laboratory experiments. The persistent shale's organic matter was utilized by a mixture of bacterial strains as the sole carbon and energy source, and bacterial growth was accompanied by chemical and structural changes of black shale.
Estonian black shales as all others Baltoscandian black shales of lower paleo zoic age is relatively high concentration of metals (Andersson, et al., 1985). For example Estonian black shale consists molybdenum up to 1990 ppm, uranium up to 1038 ppm and vanadium up to 1910 ppm (Pukkonen, 1989, Pukkonen and Rammo, 1992). According to Palvadre ...
Fossils were used by Murray in 1845 to show that black oil shales of Collingwood were the same age as similar rocks in the Whitby area and New York State (GSC 1993-132c). cgc.rncan.gc.ca En 1845, Murray s'est servi de fossiles pour montrer que les ampélite s bitumineuses d e Collingwood étaient aussi âgées que leurs homologues de la région de Whitby et de l'État de New York (CGC 1993-132C).
Bioleaching of copper, cobalt and zinc from black shale by Penicillium notatum
The role of indigenous microorganisms in the biotransformation of refractory organic-rich copper-bearing black shale ore (Kupferschiefer) was confirmed in laboratory experiments. The persistent shale's organic matter was utilized by a mixture of bacterial strains as the sole carbon and energy source, and bacterial growth was accompanied by chemical and structural changes of black shale.
Black shale ore samples were sterilized by heating three times, for a period of 1 h at 100 °C, on three successive days. This method of sterilization was used to minimize the destruction of organic compounds. Sterile mineral medium supplemented with black shale without added bacteria was used as control. All cultures with crushed shale were prepared in triplicate and maintained under aerobic ...
The Black Butte copper deposits (formerly known as Sheep Creek) are a group of sediment hosted, laterally extensive Cu–(Co–Ag) deposits hosted in dolomitic shale of the mid-Proterozoic Newland Formation. Copper–cobalt mineralization occurs in zones of massive, laminated pyrite that were locally reworked and infiltrated by Cu-rich fluids during early diagenesis.
16/12/2016 · Black shales represent one of the main reservoirs of metals released to hydrosphere via chemical weathering and play an important role in geochemical cycling of metals in the ocean. The stable isotope systematics of transitional metals (e.g., Cu and Zn) may be used as a proxy for evaluating their geochemical cycling.
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The Black Butte copper deposits (formerly known as Sheep Creek) are a group of sediment hosted, laterally extensive Cu-(Co-Ag) deposits hosted in dolomitic shale of the mid-Proterozoic Newland Formation. Copper-cobalt mineralization occurs in zones of massive, laminated pyrite that were locally reworked and infiltrated by Cu-rich fluids during early diagenesis.
Black shales are noted for their poly metallic mineraldeposits all over the world. One such black shale is the Marcellus shale found in the eastern United States that is now being exploited for its natural gas content. In the process of extracting the gas in the shale is Hydro Fracked so that after the gas is recovered a solution of the metal extraction bacteria could be pumped down the hole ...
03/05/2016 · Copper concentrations in shales and BIFs are compiled from the literature and unpublished data (see Datasets S1 and S2). The black shale samples analyzed in this study originate from marginal marine sediments deposited from ∼2.66–2.084 Ga. South African samples cover a drill core depth of 85–2,440 m, with ages constrained to ∼2.66–2.32 Ga. The oldest originate from the Bothaville ...
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metal recovery from copper bearing black shale. Methods and Results: Eight bacterial strains were isolated from black shale ore. Phylogenetic analysis based on 16S rRNA gene homology showed that five strains belonged to the c-Proteobacteria, one to the Firmicutes and two to the Actinobacteria. The ability of the isolates to transform bituminous shale and use them as carbon and energy sources ...
1968, p. 464), and at least part of the copper is synge- netic. Oklo, the natural nuclear reactor and uranium deposit in Africa, may represent a maximum concen- tration of uranium in which the black shale involved may have played an important role in localizing the de- posit and in retaining fission products (Brookins, 1976). In Sweden, alum shales of Cambrian age containing about 14% organic ...
Biotransformation of copper from Kupferschiefer black shale (Fore-Sudetic Monocline, Poland) by yeast Rhodotorula mucilaginosa LM9
Black shale is a dark-colored mudrock containing organic matter that may have generated hydrocarbons in the subsurface or that may yield hydrocarbons by pyrolysis. Many black shale units are enriched in metals severalfold above expected amounts in ordinary shale. Some black shale units have served as host rocks for syngenetic metal deposits.
The analyzed black shale had also extremely high Cu and Ag contents, exceeding 10 4 mg kg −1 and 100 mg kg −1, respectively (Table 1). In a previous study, the concentrations of Cu and Ag found in the black shale profile ranged up to 10 wt% and up to 100 mg kg −1, respectively (Piestrzyński & .
The unit has been dated to 257.3 ± 1.6 Ma, placing it in the Wuchiapingian stage of the Late Permian. The Kupferschiefer comprises black shales, bituminous marls, mudstones and limestones deposited mostly in an open marine setting, with the borders of its extension deposited in .
Country : Denmark, Germany, Lithuania, .
Black shale sample Black shale ore sample was taken from the Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan. That was somewhat alkaline (pH 7.3) and partially soluble in water. Black shale ore sample having black color might be due to the existence of carbon, hydrocarbon or iron sulfide that was present in it.
8-3-2010 · The role of indigenous microorganisms in the biotransformation of refractory organic-rich copper-bearing black shale ore (Kupferschiefer) was confirmed in laboratory experiments. The persistent shale's organic matter was utilized by a mixture of bacterial strains as the sole carbon and energy source, and bacterial growth was accompanied by chemical and structural changes of black shale.
Isolation and Characterisation of Microorganisms from Copper Bearing Black Shale of Lubin Mine (Poland) p.580. Analysis of the Microbial Community in an Acid Ground Water Characterized by Sulfate Reduction Activity p.581. Characterization of New Iron Oxidizing Bacteria ...
Biotransformation of copper from Kupferschiefer black shale (Fore-Sudetic Monocline, Poland) by yeast Rhodotorula mucilaginosa LM9
In this study, the recovery of metals from low grade black shale ore was attempted by employing fungal strain, Penicillium notatum using different organic wastes as substrates. Maximum recovery of copper (49.29%) and cobalt (53.51%) was found in media containing glucose (standard medium) and molasses
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03/05/2016 · Copper concentrations in shales and BIFs are compiled from the literature and unpublished data (see Datasets S1 and S2). The black shale samples analyzed in this study originate from marginal marine sediments deposited from ∼2.66–2.084 Ga. South African samples cover a drill core depth of 85–2,440 m, with ages constrained to ∼2.66–2.32 Ga. The oldest originate from the Bothaville ...
Cited by : 50
OF BLACK SHALE COPPER ORE FROM LUBIN MINE Received May18, 2007; reviewed; accepted June 15, 2007 The beneficial effect of leaching of carbonate gangue of flotation middlings (tailings from 1st cleaning at Lubin Concentrator) with sulfuric acid prior to their final flotation, leaching or bioleaching has been presented. The leaching of flotation feed with sulfuric acid decomposes selectively the ...
A sample of black shale fraction of copper ore from the Lubin deposit, Poland, was subjected to pretreatment by different microorganisms to improve the copper recovery during the subsequent flotation. Chemolithotrophic bacteria grown on So and S2O3 2- were used to depress pyrite before flotation by means of ethyl xantate as collector.
Black shale, also called Carboniferous Shale, variety of shale that contains abundant organic matter, pyrite, and sometimes carbonate nodules or layers and, in some locations, concentrations of copper, nickel, uranium, and vanadium. Fossils are rare in the shale and either are replaced by pyrite or are preserved as a film of graphite.
Eight black shale samples from the Laoyaling Mo orebody were dated by Re-Os technique using ICP-MS, which give an isochron age of 234.2 ±7.3 Ma with an initial 187 Os/ 188 Os ratio of 1.37 ±0.39. The apparent Re-Os age is a few million years younger than the depositional age of the Late Permian. The young isochron age may be caused by the ...
