Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.3390/min10080688

Ключевые слова: disseminated ores, mineralogy and geochemical features, norilsk 1 intrusion, platinum–copper–nickel deposits

Аннотация: The purpose of this study is to show the patterns of distribution of disseminated sulfide in layered rocks based on the numerous geochemical and mineralogical data obtained for eight boreholes of the Norilsk intrusion (southern part of the Norilsk 1 deposit). There is a common trend of sulfide liquid fractionation in the Main Ore Horizon, which is composed of picritic and taxite (or olivine) gabbro-dolerites: the Ni/Cu in both rock types decreases down all sections, indicating an increase in the degree of fractionation of the sulfide liquid from top to bottom. On the contrary, the Ni/Fe ratios in pentlandite increase in this direction due to an increase in sulfur fugacity. However, picrite and taxite/olivine gabbro-dolerites are very distinctly separated by Ni/Cu values: these values are >1 in picritic gabbro-dolerite while they are always

Журнал: Minerals

Выпуск журнала: Vol. 10, Is. 8

Номера страниц: 1-22

ISSN журнала: 2075163X

• Tolstykh Nadezhda (Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Koptyuga Prospect 3, Novosibirsk 630090, Russia; Novosibirsk State Univ, Dept Geol & Geophys, Pirogova Ave 2, Novosibirsk 630090, Russia)
• Shvedov Gennadiy (Siberian Fed Univ, Inst Min Geol & Geotechnol, 95 Ave Prospekt Gazety Krasnoyarskiy Rabochiy, Krasnoyarsk 660025, Russia)
• Polonyankin Aleksandr (Russian Platinum LLC, Sivtsev Vrahzek Side St 39, Moscow 119002, Russia)
• Korolyuk Vladimir (Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Koptyuga Prospect 3, Novosibirsk 630090, Russia)

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