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    Wyświetlanie 1-9 z 9
    Tytuł:
    Polymetallic mineralization in Ediacaran sediments in the Żarki-Kotowice area, Poland
    Autorzy:
    Karwowski, Łukasz
    Markowiak, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2086483.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Mineralogiczne
    Tematy:
    Małopolska Block
    ore mineralization
    cobaltite
    nickeline
    wolframite
    Opis:
    In one small mineral vein in core from borehole 144-Ż in the Żarki-Kotowice area, almost all of the ore minerals known from related deposits in the vicinity occur. Some of the minerals in the vein described in this paper, namely, nickeline, hessite, native silver and minerals of the cobaltite-gersdorffite group, have not previously been reported from elsewhere in the Kraków-Lubliniec tectonic zone. The identified minerals are chalcopyrite, pyrite, marcasite, sphalerite, Co-rich pyrite, tennantite, tetrahedrite, bornite, galena, magnetite, hematite, cassiterite, pyrrhotite, wolframite (ferberite), scheelite, molybdenite, nickeline, minerals of the cobaltitegersdorffite group, carrollite, hessite and native silver. Moreover, native bismuth, bismuthinite, a Cu- and Ag-rich sulfosalt of Bi (cuprobismutite) and Ni-rich pyrite also occur in the vein. We suggest that, the ore mineralization from the borehole probably reflects post-magmatic hydrothermal activity related to an unseen granitic intrusion located under the Mesozoic sediments in the Żarki-Pilica area.
    Źródło:
    Mineralogia; 2012, 43, 3/4; 199--212
    1899-8291
    1899-8526
    Pojawia się w:
    Mineralogia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polymetallic mineralization in Ediacaran sediments in the Żarki-Kotowice area, Poland
    Autorzy:
    Karwowski, Ł.
    Markowiak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2086528.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Mineralogiczne
    Tematy:
    Małopolska Block
    ore mineralization
    cobaltite
    nickeline
    wolframite
    Opis:
    In one small mineral vein in core from borehole 144-Ż in the Żarki-Kotowice area, almost all of the ore minerals known from related deposits in the vicinity occur. Some of the minerals in the vein described in this paper, namely, nickeline, hessite, native silver and minerals of the cobaltite-gersdorffite group, have not previously been reported from elsewhere in the Kraków-Lubliniec tectonic zone. The identified minerals are chalcopyrite, pyrite, marcasite, sphalerite, Co-rich pyrite, tennantite, tetrahedrite, bornite, galena, magnetite, hematite, cassiterite, pyrrhotite, wolframite (ferberite), scheelite, molybdenite, nickeline, minerals of the cobaltitegersdorffite group, carrollite, hessite and native silver. Moreover, native bismuth, bismuthinite, a Cu- and Ag-rich sulfosalt of Bi (cuprobismutite) and Ni-rich pyrite also occur in the vein. We suggest that, the ore mineralization from the borehole probably reflects post-magmatic hydrothermal activity related to an unseen granitic intrusion located under the Mesozoic sediments in the Żarki-Pilica area.
    Źródło:
    Mineralogia; 2012, 43, 3/4; 199--212
    1899-8291
    1899-8526
    Pojawia się w:
    Mineralogia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrothermal ore mineralization from the Polish part of the Tatra Mts., Central Western Carpathians
    Autorzy:
    Sitarz, Magdalena
    Gołębiowska, Bożena
    Nejbert, Krzysztof
    Dimitrova, Dimitrina
    Milovský, Ratislav
    Powiązania:
    https://bibliotekanauki.pl/articles/2055847.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    tetrahedrite
    hydrotherma ore mineralization
    fluid inclusions
    LA-ICP-MS study
    Tatric Superunit
    Polish part of the Western Tatra Mts.
    Polska
    Opis:
    Several areas with hydrothermal ore mineralization are present in the Polish part of the Western Tatra Mts. Massive and disseminated sulfides, mainly minerals from the tetrahedrite group and chalcopyrite, fill quartz veins accompanied by siderite, dolomite and baryte – many of these were mined between the 16th and 18th century. This paper presents information on the mineralogy of the common sulfides and the preliminary studies of both the isotopic composition of sulfur in tetrahedrite as well as the origin of hydrothermal fluids. The most common primary sulfide minerals in the ores are tetrahedrite-(Zn) and tetrahedrite-(Fe) corresponding to Zn ranges from 1.83 to 5.87 wt.% (0.47–1.44 apfu), and Fe from 1.63 to 5.05 wt.% (0.48–1.52 apfu). The substitution of As for Sb shows maximum As content of 7.25 wt.% (1.588 apfu) which corresponds to the Sb/(Sb+As) = 0.60. Both varieties show substitutions of Bi and Hg, up 0.6 wt.% (0.049 apfu) and 0.96 wt.% (0.081 apfu), respectively, and content of trace elements: Co (max. 976 ppm), Cd (max. 735 ppm), In (max. 14 ppm). Chalcopyrite, pyrite, and galena show compositions close to the ideal formula. Differences in the content of trace elements in the studied tetrahedrite and chalcopyrite were explained by element partitioning between these minerals. The distributions of In, Ga and Sn in the studied minerals indicate that the mineralization was formed at low temperature and pressure. The homogenization temperature of the primary inclusions in quartz in the range of 120–174°C indicate the origin of mineralization in low temperature stage from low salinity fluids (up to 17.92 wt.% NaCl eq.). Stable δ34S isotopes in minerals of the tetrahedrite group suggest that the igneous fluids might be one of the sources from which ores were crystallized.
    Źródło:
    Geology, Geophysics and Environment; 2021, 47, 3; 159--179
    2299-8004
    2353-0790
    Pojawia się w:
    Geology, Geophysics and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polymetallic mineralization in Triassic strata of the NW part of the Kraków-Częstochowa Monocline
    Autorzy:
    Pieczonka, Jadwiga
    Powiązania:
    https://bibliotekanauki.pl/articles/2086516.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Mineralogiczne
    Tematy:
    copper mineralization
    Bunter
    Upper Silesian ore district
    Opis:
    A new association of ore minerals has been found in the Lower and Middle Triassic rocks in the vicinity of the village of Woźniki in the NW part of the Upper Silesian district. In addition to the typical Zn-Pb-Fe association in dolomites, copper sulphides have been detected in the sandstones and conglomerates of the Lower Bunter. Copper mineralization occurs in the sandstone matrix and is represented by bornite, chalcopyrite, chalcocite, tetrahedrite and covellite. High admixtures of zinc in Cu sulphides and admixtures of copper in Zn-Pb sulphides suggest a common source for the metal-transporting fluids and a single period of sulphide crystallization.
    Źródło:
    Mineralogia; 2010, 41, 1/2; 33--53
    1899-8291
    1899-8526
    Pojawia się w:
    Mineralogia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polymetallic mineralization in Triassic strata of the NW part of the Kraków-Częstochowa Monocline
    Autorzy:
    Pieczonka, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2086548.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Mineralogiczne
    Tematy:
    copper mineralization
    Bunter
    Upper Silesian ore district
    Opis:
    A new association of ore minerals has been found in the Lower and Middle Triassic rocks in the vicinity of the village of Woźniki in the NW part of the Upper Silesian district. In addition to the typical Zn-Pb-Fe association in dolomites, copper sulphides have been detected in the sandstones and conglomerates of the Lower Bunter. Copper mineralization occurs in the sandstone matrix and is represented by bornite, chalcopyrite, chalcocite, tetrahedrite and covellite. High admixtures of zinc in Cu sulphides and admixtures of copper in Zn-Pb sulphides suggest a common source for the metal-transporting fluids and a single period of sulphide crystallization.
    Źródło:
    Mineralogia; 2010, 41, 1/2; 33--53
    1899-8291
    1899-8526
    Pojawia się w:
    Mineralogia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the origin of strata-bound Zn-Pb ores in the Upper Silesia, Poland
    Komentarz do genezy górnośląskich złóż rud Zn-Pb w utworach triasowych
    Autorzy:
    Sass-Gustkiewicz, Maria
    Dżułyński, Stanisław
    Powiązania:
    https://bibliotekanauki.pl/articles/27311275.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    MVT deposits
    age of mineralization
    derivation of ore fluids
    Opis:
    In view of the renewed discussion on the origin of Upper Silesian Zn-Pb ores we give some comments on this subject. In our opinion the recurrently invoked post-Jurassic age of these deposits is at variance with geological facts which point to pre-Jurassic age. The source of metal-bearing solutions could be looked in deeper parts of the Earth’s crust, presumably in Paleozoic rocks, or in older accumulations of ore deposits regenerated during Triassic reorganization of crustal plates.
    W nawiązaniu do wznowionej dyskusji nad pochodzeniem i wiekiem górnośląskich złóż rud Zn-Pb autorzy uzasadniają pogląd, że przypisywanie im po-jurajskiego wieku jest sprzeczne z faktami geologicznymi, które wskazują na ich przed-jurajski wiek. Źródeł roztworów metalonośnych można się dopatrywać w głębszych częściach skorupy ziemskiej prawdopodobnie w paleozoicznych skałach, bądź w starszych złożach kruszców, zregenerowanych podczas przemieszczania się kier globalnych w triasie.
    Źródło:
    Annales Societatis Geologorum Poloniae; 1998, 68, 4; 267--278
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mineralogy and in situ S and Pb isotope characteristics of ore minerals from polymetallic mineralization in the Gierczyn-Przecznica area, SW Poland
    Autorzy:
    Foltyn, Krzysztof
    Kozub-Budzyń, Gabriela Anna
    Lahaye, Yann
    Piestrzyński, Adam
    Skirak, Paulina
    Zygo, Władysław
    Pieczonka, Jadwiga
    Powiązania:
    https://bibliotekanauki.pl/articles/27323311.pdf
    Data publikacji:
    2023
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Pb isotopes
    S isotopes
    polymetallic mineralization
    cobalt
    ore geology
    Sudety Mts.
    Opis:
    Chlorite-mica-quartz schist in the Gierczyn-Przecznica area in SW Poland contains polymetallic ores which were the source of tin and cobalt in the past. This mineralogical study revealed the presence of silver-bearing minerals including members of the tetrahedrite (Ag <3 apfu) and freibergite series (3 < Ag < 8 apfu), galena (0.26–1.48 wt.% Ag), and a phase with the chemical composition of Te-rich canfieldite Ag8Sn(S,Te)6. In Przecznica Sn-sulphides are represented by stannite while cobaltite is the most abundant host for cobalt, followed by Co-bearing arsenopyrite. Glaucodot, ullmannite and members of the löllingite-rammelsbergite solid-solution series (Fe,Ni,Co)As2 also contain cobalt but are scarce in the samples. An exposure in the “Psi Grzbiet” area is characterized by the presence of Ag, Ni, Sb and Te minerals accompanied by very small amounts of As-bearing phases (represented by arsenopyrite) while the mineralogical composition in the Przecznica area is characterized by an abundance of As phases and a lack of Sb minerals. Sulphur isotopes of sulphides from Przecznica are heavier than in most deposits related to the Karkonosze Granite intrusion, while their Pb isotope signature in galena suggests an Early Paleozoic pre-Variscan affinity rather than a Variscan one.
    Źródło:
    Geological Quarterly; 2023, 67, 1; art. no. 10
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mineralogical variations with the mining depth in the Congo Copperbelt: technical and environmental challenges in the hydrometallurgical processing of copper and cobalt ores
    Autorzy:
    Shengo, L. M.
    Kitobo, W. S.
    Kime, M.-B.
    Mambwe, M. P.
    Nyembo, T. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839038.pdf
    Data publikacji:
    2020
    Wydawca:
    Główny Instytut Górnictwa
    Tematy:
    copper-cobalt ore
    mineralization changes
    hydrometallurgical processing
    technologies update
    environment safeguarding
    ruda miedziowo-kobaltowa
    przeróbka hydrometalurgiczna
    aktualizacja technologii
    ochrona środowiska
    Opis:
    For a long time in the Democratic Republic of Congo, the mining of ores for the production of copper cathodes and salts of cobalt was mostly conducted in the near-surface oxidized mineralization of the Congo Copperbelt. An important part of this mineralization is found in geological settings where copper and cobalt mainly exist as mixtures of oxides and sulfides. With the depletion of surface-rich minerals, mining is taking place at depths where sulfide minerals are prevalent. Using current technologies, the hydrometallurgical processing of ores with high levels of sulfide minerals results in poor metal recovery due to their retention in process wastes. These mineral wastes have the propensity to lead to Acid Mine Drainage (AMD) when exposed to rainfall and atmospheric air. Therefore, major changes in the technologies implemented will be needed in order to guarantee higher process efficiencies while endeavoring to uphold environment safeguarding reinforcement. This work aimed to demonstrate the urgency of updating the hydrometallurgical technologies implemented for the processing of copper-cobalt ores with an emphasis put on minimizing the environmental footprint of process wastes. Four copper-cobalt deposits and downstream hydrometallurgical processes were surveyed to get a better understanding of how changes in mineralization occurring in the deposits will influence the processing technologies and practices during the management of process wastes.
    Źródło:
    Journal of Sustainable Mining; 2020, 19, 2; 96-114
    2300-1364
    2300-3960
    Pojawia się w:
    Journal of Sustainable Mining
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sedimentology of the “ore-bearing dolomite” of the Kraków-Silesia region (Middle Triassic, southern Poland)
    Autorzy:
    Matysik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/191964.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    ore-bearing dolomite
    epigenetic dolomitization
    lead-zinc mineralization
    facies pattern
    peritidal and subtidal facies
    Middle Triassic
    muschelkalk
    Upper Silesia
    Polska
    Opis:
    The depositional history and facies heterogeneity of the epigenetically dolomitized Middle Triassic carbonates of southern Poland are poorly recognized, and existing concepts of fluid circulation entirely overlook the primary lithology as a factor controlling fluid flow. This study reconstructs the consecutive phases of Kraków-Silesia Sub-basin history in the Anisian and highlights their influence on the development of the so-called “ore-bearing dolomite”. Extensive fieldwork and microfacies analyses were carried out in order to decipher the original depositional fabric of the ore-bearing dolomites. As a rule, epigenetic dolomitization affected a horizon of porous strata, 35 m thick and resting directly on impermeable, wavy-nodular clay-rich calcilutites of the Gogolin Formation, which represent the interval of deepest and fully marine (offshore) sedimentation. The sedimentary succession of the porous strata is bipartite. The lower part (Olkusz Beds) is composed of Balanoglossites and Thalassinoides micritic firmgrounds and peloidal packstones-grainstones, representing shoreface-foreshore facies assemblages, whereas the upper part (Diplopora Beds) consists of dolocretes, rhizolites, cryptalgal laminites, peloidal packstones-grainstones and bioturbated fine-grained dolostones, formed in a system of tidal flats and lagoons. These two parts are separated by a subaerial disconformity, which marks a sequence boundary. During emersion, the underlying deposits were subjected to meteoric diagenesis, which led to the development of moldic porosity. This combination of depositional history and diagenetic alteration determined the routes of initial migration of dolomitizing solutions on the one hand, and the location of cavern formation on the other. Owing to progressive dissolution, small caverns were changed into large karstic forms, in which the ore minerals precipitated ultimately. These findings emphasize the importance of sedimentological analysis to the understanding of the evolution of the Kraków-Silesia ore province.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2014, 84, 2; 81-112
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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