Remezova O. The layered titanium-bearing gabbro intrusions of Korosten' pluton (north-western part of the Ukrainian shield)

The geological structure and processes of ore-forming mechanism in the layered titanium-bearing gabbro intrusions of Korosten' pluton are explored. It is set that their forming took place in subplatformconditions, belonged to the Middle Proterozoic stage of activation and related to formation and disintegration of plumes. The initial high-aluminous magma, which formed the basic rocks Korosten' pluton on the type of layered intrusions, did not have the expressly showed specialization on titan. As a result of plagioclase dumping in cumulate there was an accumulation in remaining melts of titaniun and phosphorus, that it was named as dynamic specialization on these elements. The layered gabbro intrusions are the high-differentiated ore-concentrated structures, where the redistribution of ore minerals took place. The explored massifs are characterized by macro- and microstratification, within the limits of macrohorizons 3-4 microhorizons are selected. The melanocratic macrorhythms are most ore-bearing and within the limits of them the layers more or less enriched on titan phosphorus(microrhythms) appear. On the manifestations of different stratification and ore-forming mechanisms the general model of specific metallogenic structures forming in Korosten' pluton- the layered titanium-bearing gabbro intrusions was elaborated and their typification is conducted, the kindly objects selected. The further prospects of mineralization revealing are related to finding of "blind" bodies after the sign of the high silicate ferruginousity of rocks. Taking into account the character of separate layers enrichment of intrusions by P, Ti, V it is need to correct the technology of these objects development.