Geochemistry of tephra from sediment core IZN19-15 from Lake Iznik (NW Turkey)
Fuente:
PANGAEA
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , , |
|---|---|
| Format: | Dataset Open Access |
| Langue: | en |
| Publié: |
PANGAEA
2021
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1867170398851825664 |
|---|---|
| author | 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 |
| author_facet | 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 |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_935182 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemistry of tephra from sediment core IZN19-15 from Lake Iznik (NW Turkey) 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 Aluminium oxide; BASILIZNIK-SECRETS; Calculated; Core; Electron probe microanalyzer (EPMA), JEOL JXA 8230; EPMA; GLASS; Hammering-push core, UWITEC PILOTE 63; HPUWI63; Iron oxide, FeO; IZN19-15; Iznik; IZNIK_04_2019; Iznik Lake, Turkey; Lake; Potassium oxide; Sample comment; Secret Archives of the Basilica of Nicea provided by the Sediments of Iznik Lake; Sediment; sediment core data; Silicon dioxide; Sodium oxide; Sum; Turkey; volcanic eruption 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. |
| title | Geochemistry of tephra from sediment core IZN19-15 from Lake Iznik (NW Turkey) |
| topic | Aluminium oxide; BASILIZNIK-SECRETS; Calculated; Core; Electron probe microanalyzer (EPMA), JEOL JXA 8230; EPMA; GLASS; Hammering-push core, UWITEC PILOTE 63; HPUWI63; Iron oxide, FeO; IZN19-15; Iznik; IZNIK_04_2019; Iznik Lake, Turkey; Lake; Potassium oxide; Sample comment; Secret Archives of the Basilica of Nicea provided by the Sediments of Iznik Lake; Sediment; sediment core data; Silicon dioxide; Sodium oxide; Sum; Turkey; volcanic eruption |
| url | https://doi.org/10.1594/PANGAEA.935182 |