Marker tephra layers in the late quaternary deposits of the Sea of Okhotsk as evidence of catastrophic eruptions in the Nemo caldera complex (Onekotan Island, Kuril Islands)

2013/09/01 by A. N. Derkachev, Maxim Portnyagin · 2 citations
Earth and Planetary Sciences · Environmental Science · #Geology and Paleoclimatology Research #Methane Hydrates and Related Phenomena #Geological Studies and Exploration

paper · doi:10.1134/s0869593813040035

openalex publication_date 2013/09/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

On the basis of complex studies of tephra layers (morphology of volcanic glass particles, chemical composition of glass particles and minerals, and REE distribution), marker tephra layers (K2, K3) were distinguished in the stratigraphic columns in the area of the Sea of Okhotsk. The areas of distribution of tephra layers and their age datings were determined. Tephra layers are shown to be similar in their chemical composition. They are correlated with strong explosive eruptions in the Nemo caldera complex on Onekotan Island (northern part of the Kuril Islands) in the Late Pleistocene.

Citations

• Volcanic ash in sediments of the Sea of Okhotsk: Identification based on minor and rare earth elements
• Magnetostratigraphy and tephrochronology of the Upper Quaternary sediments in the Okhotsk Sea: implication of terrigenous, volcanogenic and biogenic matter supply
• Ages of calderas, large explosive craters and active volcanoes in the Kuril-Kamchatka region, Russia

Cited by

• Mineral composition of tephra layers in the Quaternary deposits of the Sea of Okhotsk:: Heavy minerals associations and their geochemistry
• Nemo Peak [wikipedia]

Related

• Mineral composition of tephra layers in the Quaternary deposits of the Sea of Okhotsk:: Heavy minerals associations and their geochemistry
• Identification of tephra layers by inductively coupled plasma(ICP) emission spectrometry, and their applications.
• Identification of Lower Pleistocene widespread tephras associated with large caldera‐forming eruptions in the Tohoku area, north‐east Japan
• Late Quaternary tephra layers around Raoul and Macauley Islands, Kermadec Arc: implications for volcanic sources, explosive volcanism and tephrochronology
• Cryptotephra preserved in Lake Suigetsu (SG14 core) reveals the eruption timing and distribution of ash fall from Japanese volcanoes during the Late-glacial to early Holocene