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)

Derkachev, A.; Portnyagin, M.
September 2013
Stratigraphy & Geological Correlation;Sep2013, Vol. 21 Issue 5, p553
Academic Journal
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.


Related Articles

  • Transatlantic distribution of the Alaskan White River Ash. Jensen, Britta J. L.; Pyne-O'Donnell, Sean; Plunkett, Gill; Froese, Duane G.; Hughes, Paul D. M.; Sigl, Michael; McConnell, Joseph R.; Amesbury, Matthew J.; Blackwell, Paul G.; den Bogaard, Christel van; Buck, Caitlin E.; Charman, Dan J.; Clague, John J.; Hall, Valerie A.; Koch, Johannes; Mackay, Helen; Mallon, Gunnar; McColl, Lynsey; Pilcher, Jonathan R. // Geology;Oct2014, Vol. 42 Issue 10, p875 

    Volcanic ash layers preserved within the geologic record represent precise time markers that correlate disparate depositional environments and enable the investigation of synchronous and/or asynchronous behaviors in Earth system and archaeological sciences. However, it is generally assumed that...

  • Multiple origins of obsidian pyroclasts and implications for changes in the dynamics of the 1300 B.P. eruption of Newberry Volcano, USA. A. Rust; K. Cashman // Bulletin of Volcanology;Jul2007, Vol. 69 Issue 8, p825 

    Abstract  The pyroclastic deposits of the 1300 B.P. eruption of Newberry Volcano, OR, USA, contain minor amounts of obsidian (1–6 wt.%). The volatile (H2O and CO2) contents and textures of these clasts vary considerably. FTIR measurements of H2O in...

  • Petrography and mineral chemistry of the Eocene volcanic rocks in the Posht-e-Badam block. Gharehchahi, Zahra; Torabi, Ghodrat; Sayari, Mohammad // Petrology (2228-5210);Summer2013, Vol. 4 Issue 14, p1 

    The Eocene volcanic rocks of the Posht-e-Badam block represent very good exposures in Saghand (Khoshoumi Mountain), Alahabad and Chapedony areas (Yazd province). These rocks were developed during five volcanic phases: 1- Volcanic rocks of Alahabad area which are formed during three various...

  • Estimating rates of decompression from textures of erupted ash particles produced by 1999 -2006 eruptions of Tungurahua volcano, Ecuador. Wright, Heather M. N.; Cashman, Katharine V.; Mothes, Patricia A.; Hall, Minard L.; Ruiz, Andrés Gorki; Le Pennec, Jean-Luc // Geology;Jul2012, Vol. 40 Issue 7, p619 

    Persistent low- to moderate-level eruptive activity of andesitic volcanoes is difficult to monitor because small changes in magma supply rates may cause abrupt transitions in eruptive style. As direct measurement of magma supply is not possible, robust techniques for indirect measurements must...

  • Future developments in modelling and monitoring of volcanic ash clouds: outcomes from the first IAVCEI-WMO workshop on Ash Dispersal Forecast and Civil Aviation. Bonadonna, Costanza; Folch, Arnau; Loughlin, Susan; Puempel, Herbert // Bulletin of Volcanology;Jan2012, Vol. 74 Issue 1, p1 

    As a result of the serious consequences of the 2010 Eyjafjallajökull eruption (Iceland) on civil aviation, 52 volcanologists, meteorologists, atmospheric dispersion modellers and space and ground-based monitoring specialists from 12 different countries (including representatives from 6...

  • Impact of volcanism on the evolution of Lake Van I: evolution of explosive volcanism of Nemrut Volcano (eastern Anatolia) during the past >400,000 years. Sumita, Mari; Schmincke, Hans-Ulrich // Bulletin of Volcanology;May2013, Vol. 75 Issue 5, p1 

    The historically active Nemrut Volcano (2,948 m asl) (Eastern Anatolia), rising close to the western shore of huge alkaline Lake Van, has been the source of intense Plinian eruptions for >530,000 years (drilled lake sediments). About 40 widespread, newly recognized trachytic and less common...

  • THE RELEVANCE OF VOLCANIC HAZARD IN ROMANIA: IS THERE ANY? Szakács, Alexandru; Seghedi, Ioan // Environmental Engineering & Management Journal (EEMJ);Jan2013, Vol. 12 Issue 1, p125 

    Volcanic hazard is ignored in natural hazard studies in Romania because no active volcano is known on its territory. However, the 2010 eruption of Eyjafjallajökull volcano in Iceland and its consequences on air traffic safety across Europe and the whole northern hemisphere dramatically...

  • An Advanced System to Monitor the 3D Structure of Diffuse Volcanic Ash Clouds. Vernier, J.-P.; Fairlie, T. D.; Murray, J. J.; Tupper, A.; Trepte, C.; Winker, D.; Pelon, J.; Garnier, A.; Jumelet, J.; Pavolonis, M.; Omar, A. H.; Powell, K. A. // Journal of Applied Meteorology & Climatology;Sep2013, Vol. 52 Issue 9, p2125 

    Major disruptions of the aviation system from recent volcanic eruptions have intensified discussions about and increased the international consensus toward improving volcanic ash warnings. Central to making progress is to better discern low volcanic ash loadings and to describe the ash cloud...

  • Dynamic pore-pressure variations induce substrate erosion by pyroclastic flows. Roche, O.; Niño, Y.; Mangeney, A.; Brand, B.; Pollock, N.; Valentine, G. A. // Geology;Oct2013, Vol. 41 Issue 10, p1107 

    Field evidence shows that pyroclastic flows can entrain blocks from underlying substrates formed by earlier geological events, yet, counterintuitively, they are less likely to erode unconsolidated layers of fine particles. Here we report laboratory experiments that reproduce these seemingly...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics