Author:
Bergal-Kuvikas O. V.,Smirnov S. Z.,Agatova A. R.,Degterev A. V.,Razjigaeva N. G.,Pinegina T. K.,Portnyagin M. V.,Karmanov N. S.,Timina T. Yu.
Abstract
Abstract
Geochemical study of volcaniclastic material and radiocarbon dating of charred plant debris from Holocene deposits of the Guram site, which is located in vicinity of Vetrovoi Isthmus on Iturup Island, demonstrate that an explosive eruption (VEI 4-5) occurred there about 2000 years ago. The geochemical and age similarity with the tephra of marker layer CKr that was distinguished on Iturup, Urup, Simushir, Rasshua, and Matua islands of the Kuril Island Arc led to the conclusion that this eruption is possibly a source of this tephra. The data presented are proposed as a motivation for revision of the volcanic hazard on Iturup Island.
Subject
General Earth and Planetary Sciences,Earth and Planetary Sciences (miscellaneous)
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