Abstract
The zones of tectono-magmatic activation (TMA) that bound and traverse the major volcanogenic belts in the Russian Northeast were previously thought to be satellites of these belts. We even suggested an appropriate term, “perivolcanic zones” [Sidorov et al., 1978]. However, these supra-subduction and their perivolcanic zones are generally radically different from the deep-seated TMA zones of the Chukchi or Omsukchan types in that they are less deep and are short-lived. In contrast to volcanogenic belts, which are characterized by numerous small volcanic features with numerous mineralization occurrences of base and noble metals among regional propilitization fields, it is exactly in the zones of activation of these types that long-lived, volcano-plutonic centers with major mineralization fields are formed.
Published Version
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