Труды Кольского научного ценра РАН. № 6 (10), вып.1. 2019 г.

software (the author is D. V. Dolivo-Dobrovolsky, IPGG RAS, http://dimadd.ru/ru/) . The legend: Opx — inclusion of chromian spinel in orthopyroxene; 01 — in olivine (partial pseudomorphs of talc and magnetite over olivine), yOI — in orthopyroxene (the pseudomorph of talc and magnetite over olivine located nearby); Cpx — in clinopyroxene. Numbers mark the areas of: 1 — chromite, 2 — subferrichromite, 3 — alumochromite, 4 — subferrialumochromite, 5 — ferrialumochromite, 6 — subalumoferrichromite, 7— ferrichromite, 8 — chrompicotite, 9 — subferricrompicotite, 10 — subalumochrommagnetite, 11 — chrommagnetite, 12 — picotite, 13 - magnetite; I — the primary trend of differentiating the chemical compositions of chromian spinels from ultrabasic rock in upper mantle, II — secondary trends of metamorphic transformations in crust conditions; A — chemical compositions of primary-magmatic core of chromian spinels from komatiites of Sovdozero greenstone belt (Svetov et al., 2014); Б — chemical compositions of secondary chromian spinels from komatiites of Sovdozero greenstone belt (Svetov et al., 2014); В — chemical compositions of chromian spinels from ultrabasic zone of Shalozero-Burakovsky body of the Burakovsky pluton (Chistyakov, Sharkov, 2008); Г — chemical compositions of chromian spinels from Pyroxenite zone of Shalozero-Burakovsky body of the Burakovsky pluton (Chistyakov, Sharkov, 2008) О CD 6& 60; 5& 50 40- 3& 30 25- О Opx • 01 о Cpx • yOI 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 Cr203 Рис. 2. Вариационная диаграмма 0 : 0 , -FeO. Условные обозначения — см. рис. 1 Fig. 2. Variation diagram СгзОз-РеО. For the legend see Fig. 1 20