The lava flows of the Beta and Gamma cones apparently formed first. An age of 1000 CE was estimated for the volcanoes, on the basis of the timespan estimated for the development of soil on the lava flows and the growth of trees on them. This would make Aluchin one of the few continental Asian volcanoes with activity during the Holocene. Argon-argon dating however has yielded a much older age of 277,300 ± 2,100 years ago; that age may reflect a more general volcanic event in northeastern Russia, as other local volcanoes were also active at that time. The formation of the Alpha cone was characterized by an alternation of explosive and effusive activity.