Gold metallogeny in the Aldan province

Metallogenic zones adjacent to the boundaries of magablocks - collision zon es of Karelian age - have been revealed by generalizing materials on occurr ences and placers of gold on the Aldan Shield. The collision zones have a s pecific heterogeneous structure and are characterized by deep origin and lo ng subsequent evolution. They were repeatedly activated in the Late Protero zoic, Paleozoic, and Mesozoic-Cenozoic. Ore regions within the megablocks i nherit more ancient heterogeneities related to Archean-Early Proterozoic ac cretionary processes. The authors substantiate the prospects for types of g old mineralization nontraditional far the Aldan gold-bearing province.