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Lake Ohrid’s tephrochronological dataset reveals 1.36 Ma of Mediterranean explosive volcanic activity
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Emma L. Tomlinson,
Markus Lagos,
Alexander Francke,
Bernd Wagner
Scientific Data, Volume: 8, Issue: 1, Start page: 231
Swansea University Author:
Paul Albert
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DOI (Published version): 10.1038/s41597-021-01013-7
Abstract
Tephrochronology relies on the availability of the stratigraphical, geochemical and geochronological datasets of volcanic deposits, three preconditions which are both often only fragmentary accessible. This study presents the tephrochronological dataset from the Lake Ohrid (Balkans) sediment success...
| Published in: | Scientific Data |
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| ISSN: | 2052-4463 |
| Published: |
Springer Science and Business Media LLC
2021
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa57913 |
| Abstract: |
Tephrochronology relies on the availability of the stratigraphical, geochemical and geochronological datasets of volcanic deposits, three preconditions which are both often only fragmentary accessible. This study presents the tephrochronological dataset from the Lake Ohrid (Balkans) sediment succession continuously reaching back to 1.36 Ma. 57 tephra layers were investigated for their morphological appearance, geochemical fingerprint, and (chrono-)stratigraphic position. Glass fragments of tephra layers were analyzed for their major element composition using Energy-Dispersive-Spectroscopy and Wavelength-Dispersive Spectroscopy and for their trace element composition by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry. Radiometric dated equivalents of 16 tephra layers and orbital tuning of geochemical proxy data provided the basis for the age-depth model of the Lake Ohrid sediment succession. The age-depth model, in turn, provides ages for unknown or undated tephra layers. This dataset forms the basis for a regional stratigraphic framework and provides insights into the central Mediterranean explosive volcanic activity during the last 1.36 Ma. |
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| Item Description: |
Data Descriptor |
| College: |
Faculty of Science and Engineering |
| Funders: |
The SCOPSCO Lake Ohrid drilling campaign was funded by ICDP, the German Ministry of Higher Education and Research, the German Research Foundation, the University of Cologne, the British Geological Survey, the INGV and CNR (both Italy), and the governments of the republics of Northern Macedonia and Albania. Logistic support was provided by the Hydrobiological Institute in Ohrid. Drilling was carried out by Drilling, Observation and Sampling of the Earth’s Continental Crust (DOSECC) using the Deep Lake Drilling System (DLDS). This work was funded by the German Research Foundation grant WA2109/13. Marina Kemperle (University of Cologne) and Reiner Kleinschrodt (University of Cologne) assisted during microprobe analysis at the University of Cologne. The iCRAG LA-ICP-MS facility at Trinity College Dublin is supported by SFI award 13/RC/2092. This is contribution number 66 of the LA-ICPMS laboratory of the Institute of Geosciences, University of Bonn. Open Access funding enabled and organized by Projekt DEAL. |
| Issue: |
1 |
| Start Page: |
231 |