Accessory minerals of iron and nickel in the ultramafic massif of the Poputnaya mountain (East Kamchatka)

Sandimirova E. I., Sidorov E. G., Chubarov V. M.

Zapiski RMO (Proceedings of the Russian Mineralogical Society). 2015. V. 144. N 2. P. 71-82

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Language: Russian


Association of accessory ore minerals in rocks of the Poputnaya mountain ultramafic massif is represented by oxides, sulfides, arsenides, native metals and intermetallides. Among them, iron-nickel phases containing 55.3—82.3 wt % Ni are most widespread. Magnetite, pyrrhotite, pentlandite, cobalt-ferrous and iron-nickel phases and native iron belong to the group of relatively high-temperature minerals, whereas heazlewoodite, orcelite, dienerite and native copper were formed under low-temperature conditions. Origin of all detected minerals is connected with the serpentinization process over primary rocks within the range from 500 °C down lower temperatures.

Key words: Kamchatka, the Poputnaya mountain, ultramafites, accessory minerals, iron-nickel phases, awaruite.