The Baransky volcano rises in the form of a strongly truncated cone to 1126 m. The lava flows of the volcano descend 4-5 km southeast to the ocean; at the same distance they extend in the opposite direction, occupying a generally oval area of about 6 x 9 km, elongated across the ridge. The old summit crater with a diameter of 700-800 m is severely destroyed. Filling it entirely and partly reaching the upper reaches of the potholes, it contains a gentle, essentially pyroclastic inner cone. The crater of the latter is somewhat shifted northward and in the northern part is completely destroyed, and the crater is wide open to the north-north-west. Numerous lava flows associated with the inner crater cover a significant sector of the northern and eastern slopes of the cone. One of the streams descends to the southeast to the ocean. At the bottom of the crater in the form of a shallow shield, a dome rises, low, steep slopes of which pass into a wide peak with a diameter of about 500 m. The height of the dome above the crater bottom is about 40-50 m. The northern part of the dome is blown up, here is a chain of several small exploding funnels elongated in northwest direction, and a large, deep explosive well. From this blown up part of the dome, the youngest lava flow descends along the northwestern slope; its width in the sources reaches 500 m, in the lower part about 1 km, length - up to 2 km, and thickness - 50-60 m. Lava flow is composed of two-pyroxene andesite. At the northwestern foot of the volcano there are side formations - three closely merged strongly overgrown cones, forming a chain of northwestern strike. From them, lava flows extend to the northwest.
References
Горшков Г.С. Вулканизм Курильской островной дуги / Отв. ред. Рудич К.Н. М.: Наука. 1967. 288 с.  |
