Инд. авторы:	Sklyarov E.V., Karyakin Y.V., Karmanov N.S., Tolstykh N.D.
Заглавие:	Platinum-group minerals in dolerites from Alexandra Land Island (Franz Josef Land Archipelago)
Библ. ссылка:	Sklyarov E.V., Karyakin Y.V., Karmanov N.S., Tolstykh N.D. Platinum-group minerals in dolerites from Alexandra Land Island (Franz Josef Land Archipelago) // Russian Geology and Geophysics. - 2016. - Vol.57. - Iss. 5. - P.834-841. - ISSN 1068-7971. - EISSN 1878-030X.
Внешние системы:	DOI: 10.1016/j.rgg.2016.04.006; РИНЦ: 27154019; SCOPUS: 2-s2.0-84969777038; WoS: 000377370700015;
Реферат:	eng: Lavas in Alexandra Land Island of the Franz Josef Land Archipelago bear Au-Cu-Pd-type mineralization. The found mineral species belong to the Cu-Au-Pd and Pd-Cu-(Te + Sb + S + As) systems being, respectively, (i) cuproauride (Au(Cu, Pd)) and auricupride (Au(Cu,Pd)3) and (ii) phases similar to skaergaardite (PdCu), nielsenite (PdCu3), and numerous S-Te-Sb-Pd-Cu phases of various compositions. The morphology of PGM existing as tiny grains and films along the boundaries of plagioclase and clinopyroxene and in cracks, their crystallization at low temperatures predicted by experimental data, and the presence of native copper with sulfur impurity are signatures of postmagmatic origin. The Alexandra Land tholeiitic basalts and dolerites were, most likely, produced by the hotspot which may be the source of PGE-bearing intrusions in eastern Greenland that contain PGM similar to those discussed in the paper. © 2015.
Ключевые слова:	Mantle plume; Large igneous province; Franz Josef Land Archipelago; Cu-PGE-Au mineralization; Basaltic magmatism;
Издано:	2016
Физ. характеристика:	с.834-841
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