Thia monograph provides a systematic catalogue description of all 97 known submarine volcanoes and aeamounts in the Kurile island arc, using materials of the R/V "Vulkanolog" six voyages. Interpretations of their morphostructural features are based on echo sounding, seismic reflection profiling, and characteristics of the magnetic field. Compositions have been determined for 80 of the volcanoes, including petrographic and geochemical data, using dredged material.
During concurrent study of subaerial and submarine volcanoes regularities in their spatial-structural distribution, transverse and longitudinal petrogeochemical, mineral, and isotopic zoning, and xenolith distribution in the lavas have been recognized. Volcanic activity is distributed in the frontal and rear-arc zones. These data are used to develop a model for magma generation with two zones of magma generation related to two levels of volatile separation from the subducting lithospheric plate.

The article presents the results of integrated geologic-geophysical investigation of the Ratmanov submarine volcanic massif, located in the Kurile Island Arc, 15 km southeast of the Chirinkotan island. There is a small submarine volcano on the northwestern slope of the massif with a relative height of 400–450 m, dredging of which raised andesites and a small number of andesite basalts. New data have been obtained on the mineral and chemical compositions and structural features of the massif rock formation. High values of the natural remnant magnetization of dredged rocks are caused by the high content of pseudo-single-domain of titanomagnetite grains. The foot of the massif is overlain by a volcanic-sedimentary sequence 400–800 m thick, and its formation most probably took place during periods of global geomagnetic disturbances. The maximum effective magnetization of the massif reaches 0.8 A / m. In the deep of the massif, supply channels, as well as peripheral magma chambers in the depth intervals of 3.8–4.6 km and 6–7.1 km, are identified.