Major element composition of glass shards from 1458/59 CE cryptotephra in VK22 firn core
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2025
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| _version_ | 1867171897924386816 |
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| author | Ro, Seokhyun Hur, Soon Do Ekaykin, Alexey A Han, Yeongcheol Ro, Chul-Un Hong, Sangbum Lee, Mi Jung Chang, Chaewon Lee, Seungmi Moon, Jangil Jung, Hyejin Veres, Arina N Lee, Ahhyung Hong, Sungmin |
| author_facet | Ro, Seokhyun Hur, Soon Do Ekaykin, Alexey A Han, Yeongcheol Ro, Chul-Un Hong, Sangbum Lee, Mi Jung Chang, Chaewon Lee, Seungmi Moon, Jangil Jung, Hyejin Veres, Arina N Lee, Ahhyung Hong, Sungmin |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We present the major element compositions (SiO₂, TiO₂, Al₂O₃, FeO, MgO, CaO, Na₂O, and K₂O) of unpolished micron-sized volcanic glass shards within cryptotephra layers associated with the prominent 1458/59 CE sulfate peak in a shallow firn core (VK22) drilled near the Russian Antarctic Vostok Station in East Antarctica. The measurement was performed by a quantitative scanning electron microscopy–energy dispersive X-ray spectrometry (SEM–EDX) technique using a reverse Monte Carlo simulation combined with a robust successive approximation algorithm, effectively accounting for both matrix and geometric effects and consequently contributing to an accurate determination of characteristic X-ray intensities of specific elements in unpolished glass shards. The results show a bimodal composition of glass shards, corresponding to dacitic and rhyolitic types. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_980746 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Major element composition of glass shards from 1458/59 CE cryptotephra in VK22 firn core Ro, Seokhyun Hur, Soon Do Ekaykin, Alexey A Han, Yeongcheol Ro, Chul-Un Hong, Sangbum Lee, Mi Jung Chang, Chaewon Lee, Seungmi Moon, Jangil Jung, Hyejin Veres, Arina N Lee, Ahhyung Hong, Sungmin Aluminium oxide; Antarctica; Calcium oxide; Cryptotephra; Ice core; ICEDRILL; Ice drill; Iron oxide, FeO; Magnesium oxide; ORDINAL NUMBER; Particle, diameter; Potassium oxide; Scanning electron microscopy - energy dispersive X-ray spectroscopy (SEM-EDX); Silicon dioxide; Sodium oxide; Titanium dioxide; Total; Vostok; Vostok_VK22; Vostok, Antarctica We present the major element compositions (SiO₂, TiO₂, Al₂O₃, FeO, MgO, CaO, Na₂O, and K₂O) of unpolished micron-sized volcanic glass shards within cryptotephra layers associated with the prominent 1458/59 CE sulfate peak in a shallow firn core (VK22) drilled near the Russian Antarctic Vostok Station in East Antarctica. The measurement was performed by a quantitative scanning electron microscopy–energy dispersive X-ray spectrometry (SEM–EDX) technique using a reverse Monte Carlo simulation combined with a robust successive approximation algorithm, effectively accounting for both matrix and geometric effects and consequently contributing to an accurate determination of characteristic X-ray intensities of specific elements in unpolished glass shards. The results show a bimodal composition of glass shards, corresponding to dacitic and rhyolitic types. |
| title | Major element composition of glass shards from 1458/59 CE cryptotephra in VK22 firn core |
| topic | Aluminium oxide; Antarctica; Calcium oxide; Cryptotephra; Ice core; ICEDRILL; Ice drill; Iron oxide, FeO; Magnesium oxide; ORDINAL NUMBER; Particle, diameter; Potassium oxide; Scanning electron microscopy - energy dispersive X-ray spectroscopy (SEM-EDX); Silicon dioxide; Sodium oxide; Titanium dioxide; Total; Vostok; Vostok_VK22; Vostok, Antarctica |
| url | https://doi.org/10.1594/PANGAEA.980746 |