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A tale of two lakes: a multi-proxy comparison of Lateglacial and Holocene environmental change in Cappadocia, Turkey

Roberts, Neil; Allcock, Samantha L.; Arnaud, Fabien; Dean, Jonathan R.; Eastwood, Warren J.; Jones, Matthew D.; Leng, Melanie J.; Metcalfe, Sarah E.; Malet, Emmanuel; Woodbridge, Jessie; Yiğitbaşıoğlu, Hakan

Authors

Neil Roberts

Samantha L. Allcock

Fabien Arnaud

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Dr Jonathan Dean J.Dean2@hull.ac.uk
Director of Admissions | Lecturer in Quaternary Science

Warren J. Eastwood

Matthew D. Jones

Melanie J. Leng

Sarah E. Metcalfe

Emmanuel Malet

Jessie Woodbridge

Hakan Yiğitbaşıoğlu



Abstract

Individual palaeoenvironmental records represent a combination of regional‐scale (e.g. climatic) and site‐specific local factors. Here we compare multiple climate proxies from two nearby maar lake records, assuming that common signals are due to regional‐scale forcing. A new core sequence from Nar Lake in Turkey is dated by varves and U–Th to the last 13.8 ka. Markedly dry periods during the Lateglacial stadial, at 4.3–3.7 and at 3.2–2.6 ka BP, are associated with peaks in Mg/dolomite, positive δ18O, elevated diatom‐inferred electrical conductivity, an absence of laminated sediments and low Quercus/chenopod ratios. Wet phases occurred during the early–mid Holocene and 1.5–0.6 ka BP, characterized by negative δ18O, calcite precipitation, high Ca/Sr ratios, a high percentage of planktonic diatoms, laminated sediments and high Quercus/chenopod ratios. Comparison with the record from nearby Eski Acıgöl shows good overall correspondence for many proxies, especially for δ18O. Differences are related to basin infilling and lake ontogeny at Eski Acıgöl, which consequently fails to register climatic changes during the last 2 ka, and to increased flux of lithogenic elements into Nar Lake during the last 2.6 ka, not primarily climatic in origin. In attempting to separate a regional signal from site‐specific ‘noise’, two lakes may therefore be better than one.

Journal Article Type Article
Publication Date May 1, 2016
Journal Journal of Quaternary Science
Print ISSN 0267-8179
Electronic ISSN 1099-1417
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 31
Issue 4
Pages 348-362
APA6 Citation Roberts, N., Allcock, S. L., Arnaud, F., Dean, J. R., Eastwood, W. J., Jones, M. D., …Yiğitbaşıoğlu, H. (2016). A tale of two lakes: a multi-proxy comparison of Lateglacial and Holocene environmental change in Cappadocia, Turkey. Journal of quaternary science : JQS, 31(4), 348-362. doi:10.1002/jqs.2852
DOI https://doi.org/10.1002/jqs.2852
Keywords Eastern Mediterranean; Holocene; Isotopes; Lakes; Multi‐proxy
Publisher URL https://onlinelibrary.wiley.com/doi/abs/10.1002/jqs.2852
Copyright Statement Copyright © 2016 The Authors. Journal of Quaternary Science Published by John Wiley & Sons Ltd.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Copyright Statement
Copyright © 2016 The Authors. Journal of Quaternary Science Published by John Wiley & Sons Ltd.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.





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