The regularities of germanium distribution and causal relations of mineralization with the peculiarities of peat bog formation are shown on the example of a stratum of complex structure. The latter is represented by one complex coal seam or split into two, and the distance between them gradually increases from 10-15 cm to 10-12 meters. The areas with low thickness of the interbed are composed mainly of mudstones and less frequently siltstones. In areas with increasing interbed thickness, sandy-silty sediments appear ...