According to the concepts of accretionary tectonics, the region of interest was a dynamically evolving active continental margin during Mesozoic/Cenozoic time; this is reflected in the generation of nine volcano plutonic belts that successively evolved from northwest to southeast. Most of these evolved in parallel with the present day location of the Kuril-Kamchatka deep sea trench: the Late Jurassic/Early Cretaceous Uda-Murgali belt (UMVB) the Uyandina Yasachnaya (UYVB), the Oloi belt (OVB), the Late Creta ceous/Paleogene Okhotsk-Chukchi belt (OChVB), the Late Cretaceous/Paleogene East Sikhote Alin' belt (ESVB), the Eocene/Oligocene Koryak-West Kamchatka belt (KWKVB), the Oligocene/Quaternary Cen tral Kamchatka belt (CKVB), and the Pliocene/Quaternary East Kamchatka belt (EKVB). The successively younger age of the volcanic belts since the Early Cretaceous is in correspondence with the displacement of the volcanic arc-trench system toward the Pacific Ocean. Apart from the above mentioned volcanogenic belts, the Omolon craton terrane also contains the pre accretionary Devonian Kedon marginal volcanogenic belt (KVB). All the volcanogenic belts and the surrounding perivolcanic zones of tectono magmatic activa tion (TMA) form the world largest metallogenic province with a polychronous volcanogenic-plutonogenic metallization of various compositions.

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