Bering Sea coast


Upper part of the coastal peat section ab.90 km east of Shiveluch volcano. Marker tephra layers are: SH1, ash from Shiveluch eruption ab. 250 years B.P.; SHdv, ab.4100 years B.P.  KS1 is a marker ash from Ksudach volcano, ab.1800 years B.P. The ages of two Shiveluch ashes (SH) between KS1 and SHdv markers are still to be refined.



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