"PGEs enrichments have been recently found in Zn-, Cu-, and Ni-rich black shales in a number of geological settings. These facies are generally associated with the development of continental rift structures, both without significant volcanic activity (examples in Canada, China, Finland and Poland) and with volcanic activity (Czech Republic and Namibia). In these PGE-metal-rich black shales the fractionation of the PGE in the black shales reflects the fractionation of the PGE in the associated volcanic rocks. It was further concluded that, in metal-rich black shales in which distributions of Ni and Cu have been altered by various processes, the Ni/Cu versus Pd/Ir and Cu/Ir versus Ni/Pd ratios plots are applicable for determination of the source of PGEs only after careful evaluation of Ni and Cu enrichments." . "RIV/00025798:_____/03:00000493" . "Can we use mantle normalization and metal rations for identification of PGE sources in metal-rich black shales?" . "600315" . "3"^^ . "90-77017-77-1" . . "PGEs enrichments have been recently found in Zn-, Cu-, and Ni-rich black shales in a number of geological settings. These facies are generally associated with the development of continental rift structures, both without significant volcanic activity (examples in Canada, China, Finland and Poland) and with volcanic activity (Czech Republic and Namibia). In these PGE-metal-rich black shales the fractionation of the PGE in the black shales reflects the fractionation of the PGE in the associated volcanic rocks. It was further concluded that, in metal-rich black shales in which distributions of Ni and Cu have been altered by various processes, the Ni/Cu versus Pd/Ir and Cu/Ir versus Ni/Pd ratios plots are applicable for determination of the source of PGEs only after careful evaluation of Ni and Cu enrichments."@en . . "Can we use mantle normalization and metal rations for identification of PGE sources in metal-rich black shales?"@en . . . "Z(MZP:N03/98:00)" . "3"^^ . "4"^^ . "Vymazalov\u00E1, Anna" . . "Can we use mantle normalization and metal rations for identification of PGE sources in metal-rich black shales?"@en . "metal-rich black shale, mantle normalization, metal ratios, source of PGE"@en . "Can we use mantle normalization and metal rations for identification of PGE sources in metal-rich black shales?"@cs . . "Barnes, S.-J." . "Athens" . . "2003-08-24+02:00"^^ . . "Can we use mantle normalization and metal rations for identification of PGE sources in metal-rich black shales?"@cs . "Millpress" . "[1A133130F897]" . . "Aplikace Ni/Cu versus Pd/Ir aCu/Ir versus Ni/Pd diagram\u016F pro ur\u010Den\u00ED zdroj\u016F obohacen\u00ED Pt-kovy v Zn-, Cu- a Ni- bohat\u00FDch \u010Dern\u00FDch b\u0159idlic\u00EDch."@cs . "849-852" . . . . . "Pa\u0161ava, Jan" . "Can we use mantle normalization and metal rations for identification of PGE sources in metal-rich black shales?" . . "RIV/00025798:_____/03:00000493!RIV07-MZP-00025798" . "Mineral Exploration and Sustainable Development" . . . . . "Rotterdam" .