FIG. 2. Gold ore belts and ranges of different ages (Goryachev et al., 2005): 1 - Cenozoic, 2 - Meso-Cenozoic, 3 - Mesozoic, 4 - Paleozoic, 5 - Precambrian, 6 - areas of manifestation of large paleo-placer deposits. The black curve shows the conditional boundary of the metallogenic (in gold) heterogeneity of Precambrian cratons.