TWO NEW SPECIES OF PARENTIA HARDY, 1935 (DIPTERA: DOLICHOPODIDAE) FROM SOUTH AFRICA




Compositional Variation of Chrome Spinels in the Ore-bearing Zones of the Kraka Ophiolite and the Chromitite Origin

The article considers a chemical variation of accessory and ore-forming chrome spinels from the Kraka ultramafic massif at the different scales, from the deposit to the thin section.A correlation analysis of compositional and structural TOOTH POWDER features of ultramafic rocks and ores was performed.The ultramafic rocks and chromitites in the stud

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