Details

Autor(en) / Beteiligte

• 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

Titel

The Holocene Explosive Eruption on Vetrovoi Isthmus (Iturup Island) as a Source of the Marker Tephra Layer of 2000 cal. yr BP in the Central Kuril Island Arc

Ist Teil von

• Doklady earth sciences, 2023-07, Vol.511 (1), p.550-557

Ort / Verlag

Moscow: Pleiades Publishing

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.