Proportions of methane and its homologues in gases contained mainly in fluid inclusions of minerals have been studied. Bulk gases were extracted by crushing of rock and mineral samples and then were analyzed by means of chromatographs. A regular, corresponding to Schulz-Flory distribution, decrease of alkane contents in the methane – ethane – propane – butane – pentane sequence has been revealed. Also is found a relative weighting of hydrocarbons in loparite ledges within the first and second series of the differentiated complex in comparison with those in the third series of the same, and of the eudialyte, complexes. Paleometeoric waters are suggested to contribute in formations of both hydrocarbons and loparite mineralization in the upper part of the layered complex.