Tephra of the largest prehistoric Holocene volcanic eruptions in Kamchatka
1992; Elsevier BV; Volume: 13-14; Linguagem: Inglês
10.1016/1040-6182(92)90025-w
ISSN1873-4553
AutoresO A Braitseva, И. В. Мелекесцев, В. В. Пономарева, V. Yu. Kirianov, S.N. Litasova, L. D. Sulerzhitsky,
Tópico(s)Marine and environmental studies
ResumoTephrochronological studies allow us to distinguish tephra layers that were produced by the largest explosive Holocene eruptions of volcanoes in Kamchatka. Voluminous tephra lobes were produced by both caldera-forming and subcaldera-forming eruptions. These layers are the KO (7600–7700 BP) from the Kuril Lake-Il'inskaya caldera; KRM (7700–7800 BP) from Karymsky caldera; KS1 (1700–1800 BP), KS2 (6000 BP), KS3 (6100 BP), KS4 (8700–8800 BP) from the Ksudach volcanic massif; OP (1400–1500 BP) from the Baraniy Amphitheater crater of Opala volcano; KHD (2800 BP) from Khodutka 'maar', and KHG (6900–7000 BP) from Khangar. A number of substantial tephra layers were also erupted from individual volcanoes: SH2 (900 BP), SH3 (1300–1400 BP), and SH5 (2500–2600 BP) from Shiveluch; AV1 (3500 BP), AV2 (4000–4100 BP), AV3 (4500–4600 BP), AV4 (5400–5500 BP), and AV5 (5600 BP) from Avachinsky; BZ (2300 BP) from Bezymianny, KZ (7500–7600 BP) from Kizimen, ZLT (5000 BP) from Zheltovsky, KSSHT (1000–1100 BP) from Shtyubel volcano in Ksudach massif.
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