Apoultramafic metasomatites of the Enganepe Uplift (the Polar Urals) | Zendy

С. А. Онищенко | Zendy; А. А. Соболева | Zendy

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Apoultramafic metasomatites of the Enganepe Uplift (the Polar Urals)

Author(s) -

С. А. Онищенко,

А. А. Соболева

Publication year - 2021

Publication title -

vestnik of geosciences

Language(s) - English

Resource type - Journals

ISSN - 2712-7761

DOI - 10.19110/geov.2021.3.2

Subject(s) - protolith , geology , geochemistry , magnesite , dolomite , ultramafic rock , metasomatism , metamorphic rock , spinel , residuum , nickel , mineral , metallurgy , magnesium , mantle (geology) , materials science , paleontology

Ultramafic rocks of the Enganepe Uplift are transformed into serpentinites, magnesite-dolomite-talc and quartz-magnesite-dolomite metasomatites belonging to the beresite-listvenite formation. All apoultramafic rocks contain high chromium and nickel inherent in protolith. Chrome-spinel of the magmatic stage is represented by alumochromite, which, in the process of metamorphic and metasomatic transformation of rocks, has been replaced by secondary chrome-spinel (subferrialumochromite, ferrichromite) and chromium-bearing magnetite. The main nickel minerals are millerite and gersdorffite. In quartz-magnesite-dolomite rocks, nickel is party contained in Ni-Cr-chlorite.

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