Gastineau, Renaldo; Sabatier, Pierre; Fabbri, Stefano C; Anselmetti, Flavio S; Roeser, Patricia A; Findling, Nathaniel; Arnaud, Fabien; Şahin, Mustafa; Gündüz, Serkan; Franz, Sven-Oliver; De Sigoyer, Julia (2021): Geochemistry of tephra from sediment core IZN19-15 from Lake Iznik (NW Turkey) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.935182, In: Gastineau, R et al. (2021): Sedimentary and geochemical analyses from 14 sediment cores of Lake Iznik, NW Turkey [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.935167
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Published: 2021-08-20 • DOI registered: 2022-10-19
Abstract:
The occurrence of previously geochemically identified tephra allowed refinement of the age-depth model by comparison with previously established volcanic eruption history (Roeser et al., 2012). Tephra layers were polished on thin sections and the glass shards were geochemically characterized using a JEOL JXA-8230 Electron Probe X-ray Micro Analyzer (EMPA; ISTerre Laboratory, University Grenoble Alpes) equipped with 5 wavelength dispersive spectrometers (WDS) and one energy dispersive spectrometer (EDS) detector. The measurements used the following conditions: 15 kV voltage, 2 nA beam current, and 5 to 7 µm beam size. For standardization, MPI-DING glasses (StHs6/80-G, GOR132-G) (http://georem.mpch-mainz.gwdg.de; Jochum et al., 2000), natural minerals, and synthetic oxides were used. Two glasses, Atho-G (http://georem.mpch-mainz.gwdg.de; Jochum et al., 2000) and KE-12 (Metrich & Rutherford, 1992), were analyzed together with the samples to verify analytical accuracy and to exclude the loss of alkalis. Analyses of glass shards yielding a total oxide sum less than 96% or suggesting mineral impurities were not included in this study. Analytical data were normalized to 100% total oxide values to enable comparison.
Related to:
Andronico, D; Cioni, Raffaello (2002): Contrasting styles of Mount Vesuvius activity in the period between the Avellino and Pompeii Plinian eruptions, and some implications for assessment of future hazards. Bulletin of Volcanology, 64(6), 372-391, https://doi.org/10.1007/s00445-002-0215-4
Jochum, Klaus Peter; Dingwell, Donald B; Rocholl, Alexander; Stoll, Brigitte; Hofmann, Albrecht W; Becker, Stefan; Besmehn, Astrid; Bessette, D; Dietze, H-J; Dulski, Peter; Erzinger, Jörg; Hellebrand, Eric; Hoppe, P; Horn, Ingo; Janssens, Koen; Jenner, G A; Klein, M; McDonough, W F; Maetz, M; Mezger, Klaus; Müker, C; Nikogosian, Igor; Pickhardt, Carola; Raczek, Ingrid; Rhede, D; Seufert, H M; Simakin, Sergey; Sobolev, Alexander V; Spettel, Bernhard; Straub, S; Vincze, Laszlo; Wallianos, A; Weckwerth, Gerd; Weyer, Stefan; Wolf, D; Zimmer, M (2000): The Preparation and Preliminary Characterisation of Eight Geological MPI-DING Reference Glasses for In-Situ Microanalysis. Geostandards and Geoanalytical Research, 24(1), 87-133, https://doi.org/10.1111/j.1751-908X.2000.tb00590.x
Métrich, Nicole; Rutherford, Malcolm J (1992): Experimental study of chlorine behavior in hydrous silicic melts. Geochimica et Cosmochimica Acta, 56(2), 607-616, https://doi.org/10.1016/0016-7037(92)90085-W
Roeser, Patricia A (2014): Paleolimnology of Lake Iznik (NW Turkey) during the past ~ 31 ka cal BP [dissertation]. Rheinische Friedrich-Wilhelms-Universität Bonn, https://hdl.handle.net/20.500.11811/6103
Roeser, Patricia A; Franz, Sven-Oliver; Litt, Thomas; Ülgen, Umut Baris; Hilgers, Alexandra; Wulf, Sabine; Wennrich, Volker; Akcer-Ön, Sena; Viehberg, Finn Andreas; Çagatay, M Namik; Melles, Martin (2012): Lithostratigraphic and geochronological framework for the paleoenvironmental reconstruction of the last ~36 ka cal BP from a sediment record from Lake Iznik (NW Turkey). Quaternary International, 274, 73-87, https://doi.org/10.1016/j.quaint.2012.06.006
Rolandi, Giuseppe; Petrosino, Paola; Mc Geehin, J (1998): The interplinian activity at Somma–Vesuvius in the last 3500 years. Journal of Volcanology and Geothermal Research, 82(1-4), 19-52, https://doi.org/10.1016/S0377-0273(97)00056-5
Santacroce, Roberto; Cioni, Raffaello; Marianelli, Paola; Sbrana, Alessandro; Sulpizio, Roberto; Zanchetta, Giovanni; Donahue, Douglas J; Joron, Jean Louis (2008): Age and whole rock–glass compositions of proximal pyroclastics from the major explosive eruptions of Somma-Vesuvius: A review as a tool for distal tephrostratigraphy. Journal of Volcanology and Geothermal Research, 177(1), 1-18, https://doi.org/10.1016/j.jvolgeores.2008.06.009
Project(s):
Secret Archives of the Basilica of Nicea provided by the Sediments of Iznik Lake (BASILIZNIK-SECRETS)
Coverage:
Latitude: 40.395161 * Longitude: 29.548540
Date/Time Start: 2019-07-16T15:00:00 * Date/Time End: 2019-07-16T15:00:00
Event(s):
IZN19-15 * Latitude: 40.395161 * Longitude: 29.548540 * Date/Time: 2019-07-16T15:00:00 * IGSN: https://doi.org/10.57977/TOAE0000000321 * Lake water depth: 65 m * Recovery: 2.95 m * Location: Iznik Lake, Turkey * Campaign: IZNIK_04_2019 * Method/Device: Hammering-push core, UWITEC PILOTE 63 (HPUWI63) * Comment: Core diameter (inside): 63 mm.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Core | Core | Gastineau, Renaldo | |||
| 2 | Sample comment | Sample comment | Gastineau, Renaldo | Spectrum | ||
| 3 | Silicon dioxide | SiO2 | % | Gastineau, Renaldo | Electron probe microanalyzer (EPMA), JEOL JXA 8230 | wt% |
| 4 | Sodium oxide | Na2O | % | Gastineau, Renaldo | Electron probe microanalyzer (EPMA), JEOL JXA 8230 | wt% |
| 5 | Potassium oxide | K2O | % | Gastineau, Renaldo | Electron probe microanalyzer (EPMA), JEOL JXA 8230 | wt% |
| 6 | Sum | Sum | % | Gastineau, Renaldo | Calculated | Alkalis, total (wt%) |
| 7 | Iron oxide, FeO | FeO | % | Gastineau, Renaldo | Electron probe microanalyzer (EPMA), JEOL JXA 8230 | wt% |
| 8 | Aluminium oxide | Al2O3 | % | Gastineau, Renaldo | Electron probe microanalyzer (EPMA), JEOL JXA 8230 | wt% |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
256 data points