COMPLEX GEOLOGICAL-GEOPHYSICAL STUDIES OF THE UNDERWATER VOLCANO 7.10 (KURIL ISLAND ARC)

Submarine volcano 7.10, which is part of the North Iturup group submarine volcanoes Kuril island arc, was studied in 5 voyages research vessel Vulkanolog 1982–1989. Comprehensive studies have shown that edifice 7.10 composed rocks a range from dacites to basalts. The summit and slopes are devoid sediments, base overlain by sedimentary stratum, thickness reaches 800 m. minimum depth recorded above top 210 In volcanic edifice, subvertical, northeastern northwestern feeder channels, as well peripheral magma chambers at depths 2.5–3.0 km, were identified. It assumed during terminal eruption, small lava flows poured out northeast southwest directions, while main flow southeast direction reached edifice.