ABSTRACT

In the western Siberian platform (Taimyr and Yenisey Ridge fold and thrust belts), the formation of most gold-quartz and gold-sulfide deposits in Neoproterozoic flysch sediments are connected with Neoproterozoic and Late Paleozoic collision events (Central Angara terranes and Siberian platform, Yenisey Ridge and Kara continental block and Siberian platform, Taimyr). Flysch sediments bearing gold-quartz and gold-sulfide deposits are typical for both regions. During collision, these sediments covered paleo-island-arc and ophiolite complexes that were accreted earlier. Increased gold content, including gold beresite-type metasomatites, occur in these complexes. Collision resulted in metamorphism, granitoid magmatism, hydrothermal activity, and redistribution of gold into ore deposits.