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geochemical study of the maldzhangarsky massif carbonatites indicated the presence of significant quantities of typical carbona-tite elements- sr, ba, nb, ta, p, y, tre, which is similar to the carbonatites of the tomtor massif. many parts of the massif are the ores for nb, tr, sr and p. the highest concentrations based on tre
100 analyses of nb-8000 ppm,y-800 ppm; tre-4%, sr-
10%,. in the … carbona