Beta, a smaller cone formed by lava and scoria, grew on the southeastern side of Alpha.

[1] Because the poorly indurated agglomerates are subject to rapid erosion the cone's structure has been heavily degraded.

Part of the lava flowed down into the valley of the Aluchin River, reaching a length of 5 metres (16 ft) upvalley.

Later the Aluchin River cut a deep gorge in the lava flow,[4] exposing columnar basalts.

[8] The rocks of the volcano are of trachybasalt-basalt composition,[1] being a typical continental Asia alkaline series.

[3] The volcano is located in part of the Anyuy area where a fault dating back possibly to the Paleozoic cuts the terrain.

[3] It and Aluchin form the Anyuy group of volcanoes[14] which have erupted volcanic rocks with similar composition;[15] their activity is associated with former and present-day plate boundaries in northeastern Russia.