A part of the soil-pyroclastic cover 25 km SE from the Avachinsky volcano crater. Ash horizons are interlayered by paleosol layers. Codes of tephra layers: AV – tephra from Young Cone of Avachinsky volcano, OP – marker ash from Baranii Amphitheater crater at the foot of Opala volcano, KSht 1907 – marker ash from Stübel cone in Ksudach caldera system. For pre-historic tephras radiocarbon ages are given.


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