Isotopic composition of carbon and oxygen of carbonates from carbonatites of the Kosyu massif (Middle Timan)

The question about Kosyu massif carbonatites genesis is developed. On the basis of the received data the three stages of carbonatite formation are demonstrated — initial magmatic, autometasomatic processes and the last hydrothermal low temperature stage. The comparative analysis of isotopic features of carbonates from Kosyu massif with diamond-containing carbonatites of Uzbekistan and Fuerteventura Island is provided.