. . "4"^^ . . "K\u0159\u00EDbek, Bohdan" . . "At\u00E9ny, \u0158ecko" . "Ni-Mo-PGE rich black shales of South China: Preliminary results from the isotope study of related barite and carbonates"@en . "\u017D\u00E1k, Karel" . . . "Black shales of the Lower Cambrian Niutitang Formation, southern China, host a regionally distributed stratiform Mo-Ni-platinum-group elements (PGE) rich sulfide layer. Barite occurrences and barite deposits, and various types of carbonates associated with the same sedimentary sequence were studied using C, O, S and Sr isotopes. Carbonate C and O isotope data reflect post-sedimentary diagenetic processes and various pathways of transformation of organic matter. Massive barite layers are characterized by seawater-like Sr isotope ratios, but higher d18O and especially d34S values than those of contemporaneous marine sulfate. In a restricted basin, residual sulfate S and O isotope chemistry was influenced by bacterial sulfate reduction. In contrast, accessory barite of the Ni-Mo-PGE sulfide layer shows different isotope characteristics reflecting most probably later, post-sedimentary barite formation."@en . . "[4C679A87E773]" . "Ni-Mo-PGE bohat\u00E9 \u010Dern\u00E9 b\u0159idlice ji\u017En\u00ED \u010C\u00EDny: P\u0159edb\u011B\u017En\u00E9 v\u00FDsledky izotopick\u00E9ho studia barytu a karbon\u00E1t\u016F"@cs . . . "Rotterdam" . "RIV/00025798:_____/03:00001026" . "90-5966-015-3" . . "Z(MZP:N03/98:00)" . . "\u010Cern\u00E9 b\u0159idlice spodnokambrick\u00E9 formace Niutitang v ji\u017En\u00ED \u010C\u00EDn\u011B obsahuj\u00ED stratiformn\u00ED sulfidickou mineralizaci Mo-Ni-PGE. Izotopicky (C, O, S a Sr) byly studov\u00E1ny v\u00FDskyty barytu a r\u016Fzn\u00E9 typy karbon\u00E1t\u016F, kter\u00E9 jsou sou\u010D\u00E1st\u00ED stejn\u00E9 stratigrafick\u00E9 sekvence a rovn\u011B\u017E baryt a karnon\u00E1ty z Mo-Ni-PGE rudn\u00ED polohy. Hodnoty izotop\u016F C a O v karbon\u00E1tech odr\u00E1\u017Eej\u00ED post-sediment\u00E1rn\u00ED diagenetick\u00E9 procesy a r\u016Fzn\u00E9 zp\u016Fsoby transformace organiky. Masivn\u00ED baryty maj\u00ED Sr izotopick\u00E9 pom\u011Bry bl\u00EDzk\u00E9 mo\u0159sk\u00E9 vod\u011B, av\u0161ak zna\u010Dn\u011B vy\u0161\u0161\u00ED d18O a d32S v porovn\u00E1n\u00ED se sou\u010Dasn\u00FDm mo\u0159sk\u00FDm sulf\u00E1tem. V semiizolovan\u00FDch baz\u00E9nech byl chemizmus rezidu\u00E1ln\u00EDho sulf\u00E1tu a izotopick\u00E9 hodnoty O ovlivn\u011Bny bakteri\u00E1ln\u00ED redukc\u00ED sulf\u00E1tu. Naproti tomu baryt z rudn\u00ED polohy Ni-Mo-PGE je charakterizov\u00E1n odli\u0161n\u00FDmi izotopick\u00FDmi hodnotami a nejpravd\u011Bpodobn\u011Bji indikuje jeho post-sediment\u00E1rn\u00ED vznik."@cs . . "7"^^ . "Ni-Mo-PGE rich black shales of South China: Preliminary results from the isotope study of related barite and carbonates"@en . . . "Vymazalov\u00E1, Anna" . "861-864" . "Ni-Mo-PGE rich black shales of South China: Preliminary results from the isotope study of related barite and carbonates" . . . "black shale, Ni-Mo-PGE ore, China, barite, sulfur isotopes, oxygen isotopes, strontium isotopes"@en . "Millpress Rotterdam" . "Mineral Exploration and Sustainable Development" . . "Chaoyang, Li" . . "RIV/00025798:_____/03:00001026!RIV08-MZP-00025798" . "Pa\u0161ava, Jan" . "Ni-Mo-PGE bohat\u00E9 \u010Dern\u00E9 b\u0159idlice ji\u017En\u00ED \u010C\u00EDny: P\u0159edb\u011B\u017En\u00E9 v\u00FDsledky izotopick\u00E9ho studia barytu a karbon\u00E1t\u016F"@cs . "4"^^ . . "Ni-Mo-PGE rich black shales of South China: Preliminary results from the isotope study of related barite and carbonates" . "Deng, Hailin" . "Black shales of the Lower Cambrian Niutitang Formation, southern China, host a regionally distributed stratiform Mo-Ni-platinum-group elements (PGE) rich sulfide layer. Barite occurrences and barite deposits, and various types of carbonates associated with the same sedimentary sequence were studied using C, O, S and Sr isotopes. Carbonate C and O isotope data reflect post-sedimentary diagenetic processes and various pathways of transformation of organic matter. Massive barite layers are characterized by seawater-like Sr isotope ratios, but higher d18O and especially d34S values than those of contemporaneous marine sulfate. In a restricted basin, residual sulfate S and O isotope chemistry was influenced by bacterial sulfate reduction. In contrast, accessory barite of the Ni-Mo-PGE sulfide layer shows different isotope characteristics reflecting most probably later, post-sedimentary barite formation." . . . "618008" . "Mingguo, Zeng" . . . "2003-01-01+01:00"^^ .