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
Data
| 1 Core | 2 Sample comment | 3 SiO2 [%] | 4 Na2O [%] | 5 K2O [%] | 6 Sum [%] | 7 FeO [%] | 8 Al2O3 [%] |
|---|---|---|---|---|---|---|---|
| IZN19-15 | p1 | 56.35 | 6.46 | 7.90 | 14.35 | 2.90 | 21.31 |
| IZN19-15 | p2 | 56.29 | 6.40 | 7.60 | 14.00 | 3.05 | 21.68 |
| IZN19-15 | p3 | 56.67 | 6.71 | 7.46 | 14.17 | 2.79 | 21.45 |
| IZN19-15 | p4 | 54.99 | 8.29 | 7.65 | 15.94 | 2.17 | 22.08 |
| IZN19-15 | p5 | 56.39 | 6.35 | 7.31 | 13.66 | 2.71 | 21.87 |
| IZN19-15 | p6 | 56.96 | 6.54 | 6.46 | 13.00 | 2.44 | 22.00 |
| IZN19-15 | p8 | 56.05 | 7.19 | 6.46 | 13.66 | 2.83 | 21.09 |
| IZN19-15 | p9 | 57.91 | 7.21 | 7.89 | 15.10 | 1.63 | 22.63 |
| IZN19-15 | p10 | 56.31 | 6.74 | 7.49 | 14.23 | 2.64 | 21.37 |
| IZN19-15 | p11 | 56.30 | 5.94 | 8.12 | 14.06 | 2.90 | 21.02 |
| IZN19-15 | p12 | 55.63 | 5.72 | 7.19 | 12.91 | 3.45 | 21.38 |
| IZN19-15 | p14 | 55.95 | 6.60 | 7.41 | 14.00 | 3.06 | 21.27 |
| IZN19-15 | p15 | 56.43 | 6.63 | 8.00 | 14.62 | 2.85 | 21.00 |
| IZN19-15 | p16 | 55.87 | 10.53 | 6.45 | 16.98 | 1.31 | 23.71 |
| IZN19-15 | p17 | 58.15 | 7.01 | 8.07 | 15.08 | 1.39 | 22.59 |
| IZN19-15 | p19 | 56.45 | 7.00 | 7.26 | 14.26 | 2.80 | 21.46 |
| IZN19-15 | p20 | 56.41 | 8.32 | 5.90 | 14.22 | 1.84 | 22.93 |
| IZN19-15 | p22 | 59.30 | 6.24 | 8.05 | 14.29 | 2.04 | 20.61 |
| IZN19-15 | p23 | 53.08 | 5.79 | 5.45 | 11.24 | 4.43 | 18.46 |
| IZN19-15 | p24 | 56.36 | 8.44 | 7.43 | 15.87 | 1.76 | 22.59 |
| IZN19-15 | p25 | 55.86 | 7.34 | 7.22 | 14.56 | 2.77 | 21.21 |
| IZN19-15 | p27 | 57.12 | 6.83 | 7.10 | 13.93 | 2.81 | 21.36 |
| IZN19-15 | p29 | 56.55 | 6.66 | 7.61 | 14.27 | 2.54 | 21.69 |
| IZN19-15 | p30 | 56.77 | 8.81 | 6.92 | 15.72 | 1.80 | 22.41 |
| IZN19-15 | p31 | 56.61 | 5.97 | 7.07 | 13.04 | 3.14 | 21.29 |
| IZN19-15 | p32 | 55.89 | 7.40 | 7.31 | 14.71 | 2.90 | 21.45 |
| IZN19-15 | p33 | 56.10 | 7.48 | 7.61 | 15.09 | 2.67 | 21.64 |
| IZN19-15 | p34 | 55.57 | 6.08 | 6.89 | 12.96 | 3.58 | 20.69 |
| IZN19-15 | p36 | 55.85 | 7.22 | 7.74 | 14.96 | 2.37 | 22.66 |
| IZN19-15 | p37 | 56.70 | 6.96 | 7.23 | 14.19 | 2.75 | 21.05 |
| IZN19-15 | p38 | 57.03 | 6.44 | 8.24 | 14.68 | 2.54 | 21.39 |
| IZN19-15 | p40 | 55.82 | 5.96 | 7.63 | 13.59 | 3.05 | 21.39 |