Imprints of Holocene aridity variability in the Aegean Sea and interconnections with north-latitude areas
The analysis of the ASTC1 sediment core from the south Aegean Sea region offers critical insights into the complex interplay of geological and climatic factors over the Holocene period. The data reveals fluctuating climatic conditions during the last 8.7 ka as seen through the elemental concentratio...
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Language: | English |
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Online Access: | http://dx.doi.org/10.1177/09596836241247300 https://journals.sagepub.com/doi/pdf/10.1177/09596836241247300 https://journals.sagepub.com/doi/full-xml/10.1177/09596836241247300 |
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crsagepubl:10.1177/09596836241247300 2024-05-19T07:41:25+00:00 Imprints of Holocene aridity variability in the Aegean Sea and interconnections with north-latitude areas Noti, Alexandra Geraga, Maria Lourens, Lucas J Iliopoulos, Ioannis Vlachopoulos, Andreas G Papatheodorou, George 2024 http://dx.doi.org/10.1177/09596836241247300 https://journals.sagepub.com/doi/pdf/10.1177/09596836241247300 https://journals.sagepub.com/doi/full-xml/10.1177/09596836241247300 en eng SAGE Publications https://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene ISSN 0959-6836 1477-0911 journal-article 2024 crsagepubl https://doi.org/10.1177/09596836241247300 2024-05-02T09:39:59Z The analysis of the ASTC1 sediment core from the south Aegean Sea region offers critical insights into the complex interplay of geological and climatic factors over the Holocene period. The data reveals fluctuating climatic conditions during the last 8.7 ka as seen through the elemental concentrations obtained by XRF core scanning combined with a qualitative mineral analysis within a robust chronological framework. Short-term fluctuations in both Ti/Al and Zr/Si ratios suggest brief oscillations of increased aridity which partially coincide with the Holocene “Rapid Climate Change” events (RCCs). Among them, the most pronounced in our record are those centered between 8.5–8 ka, 3–2.5 ka (Greek Dark Ages), and 0.6–0.3 ka (Little Ice Age). The arid and humid events identified in the sediment record align with major archaeological periods in Greece, suggesting a potential influence of climatic conditions on the development and decline of civilizations in the region. Moreover, a general arid trend as of 6 ka toward the present was evidenced in our record and aligns with other high-resolution climatic data from the Northern Hemisphere, suggesting climatic teleconnections. Spectral analysis of the ASTC1 record reveals cyclical climate patterns with periodicities of approximately 2500, 1200, and 550 years, which coincide with the Bond and Hallstatt cycles. The phase relation of these cycles in our record, the Greenland ice record, and the North Atlantic Drift ice indices show that colder conditions in the higher latitudes are expressed as events of enhanced aridity in our record and generally in the lower latitudinal regions. Article in Journal/Newspaper Greenland North Atlantic SAGE Publications The Holocene |
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English |
description |
The analysis of the ASTC1 sediment core from the south Aegean Sea region offers critical insights into the complex interplay of geological and climatic factors over the Holocene period. The data reveals fluctuating climatic conditions during the last 8.7 ka as seen through the elemental concentrations obtained by XRF core scanning combined with a qualitative mineral analysis within a robust chronological framework. Short-term fluctuations in both Ti/Al and Zr/Si ratios suggest brief oscillations of increased aridity which partially coincide with the Holocene “Rapid Climate Change” events (RCCs). Among them, the most pronounced in our record are those centered between 8.5–8 ka, 3–2.5 ka (Greek Dark Ages), and 0.6–0.3 ka (Little Ice Age). The arid and humid events identified in the sediment record align with major archaeological periods in Greece, suggesting a potential influence of climatic conditions on the development and decline of civilizations in the region. Moreover, a general arid trend as of 6 ka toward the present was evidenced in our record and aligns with other high-resolution climatic data from the Northern Hemisphere, suggesting climatic teleconnections. Spectral analysis of the ASTC1 record reveals cyclical climate patterns with periodicities of approximately 2500, 1200, and 550 years, which coincide with the Bond and Hallstatt cycles. The phase relation of these cycles in our record, the Greenland ice record, and the North Atlantic Drift ice indices show that colder conditions in the higher latitudes are expressed as events of enhanced aridity in our record and generally in the lower latitudinal regions. |
format |
Article in Journal/Newspaper |
author |
Noti, Alexandra Geraga, Maria Lourens, Lucas J Iliopoulos, Ioannis Vlachopoulos, Andreas G Papatheodorou, George |
spellingShingle |
Noti, Alexandra Geraga, Maria Lourens, Lucas J Iliopoulos, Ioannis Vlachopoulos, Andreas G Papatheodorou, George Imprints of Holocene aridity variability in the Aegean Sea and interconnections with north-latitude areas |
author_facet |
Noti, Alexandra Geraga, Maria Lourens, Lucas J Iliopoulos, Ioannis Vlachopoulos, Andreas G Papatheodorou, George |
author_sort |
Noti, Alexandra |
title |
Imprints of Holocene aridity variability in the Aegean Sea and interconnections with north-latitude areas |
title_short |
Imprints of Holocene aridity variability in the Aegean Sea and interconnections with north-latitude areas |
title_full |
Imprints of Holocene aridity variability in the Aegean Sea and interconnections with north-latitude areas |
title_fullStr |
Imprints of Holocene aridity variability in the Aegean Sea and interconnections with north-latitude areas |
title_full_unstemmed |
Imprints of Holocene aridity variability in the Aegean Sea and interconnections with north-latitude areas |
title_sort |
imprints of holocene aridity variability in the aegean sea and interconnections with north-latitude areas |
publisher |
SAGE Publications |
publishDate |
2024 |
url |
http://dx.doi.org/10.1177/09596836241247300 https://journals.sagepub.com/doi/pdf/10.1177/09596836241247300 https://journals.sagepub.com/doi/full-xml/10.1177/09596836241247300 |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
The Holocene ISSN 0959-6836 1477-0911 |
op_rights |
https://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/09596836241247300 |
container_title |
The Holocene |
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1799481015968727040 |