Arid
DOI10.1007/s10933-012-9654-x
Diatom-inferred late Pleistocene and Holocene palaeolimnological changes in the Ioannina basin, northwest Greece
Jones, Timothy D.1; Lawson, Ian T.2; Reed, Jane M.3; Wilson, Graham P.4; Leng, Melanie J.5,6; Gierga, Merle7; Bernasconi, Stefano M.7; Smittenberg, Rienk H.8; Hajdas, Irka9; Bryant, Charlotte L.10; Tzedakis, P. C.11
通讯作者Jones, Timothy D.
来源期刊JOURNAL OF PALEOLIMNOLOGY
ISSN0921-2728
EISSN1573-0417
出版年2013
卷号49期号:2页码:185-204
英文摘要

The character and impact of climate change since the last glacial maximum (LGM) in the eastern Mediterranean region remain poorly understood. Here, two new diatom records from the Ioannina basin in northwest Greece are presented alongside a pre-existing record and used to infer past changes in lake level, a proxy for the balance between precipitation and evaporation. Comparison of the three records indicates that lake-level fluctuations were the dominant driver of diatom assemblage composition change, whereas productivity variations had a secondary role. The reconstruction indicates low lake levels during the LGM. Late glacial lake deepening was underway by 15.0 cal kyr BP, implying that the climate was becoming wetter. During the Younger Dryas stadial, a lake-level decline is recorded, indicating arid climatic conditions. Lake Ioannina deepened rapidly in the early Holocene, but long-term lake-level decline commenced around 7.0 cal kyr BP. The pattern of lake-level change is broadly consistent with an existing lake-level reconstruction at Lake Xinias, central Greece. The timing of the apparent change, however, is different, with delayed early Holocene deepening at Xinias. This offset is attributed to uncertainties in the age models, and the position of Xinias in the rain shadow of the Pindus Mountains.


英文关键词Diatoms Stable carbon isotopes Ioannina Lake-level change Late Pleistocene Holocene
类型Article
语种英语
国家England ; Switzerland ; Sweden ; Scotland
收录类别SCI-E
WOS记录号WOS:000313795300006
WOS关键词PHOSPHORUS TRANSFER-FUNCTIONS ; LAKE-LEVEL CHANGES ; REGION ; SHALLOW ; CLIMATE ; RECONSTRUCTION ; HISTORY ; PRESERVATION ; DISSOLUTION ; TRANSITION
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary ; Limnology
WOS研究方向Environmental Sciences & Ecology ; Geology ; Marine & Freshwater Biology
来源机构University of London
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/178607
作者单位1.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England;
2.Univ Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire, England;
3.Univ Hull, Dept Geog, Kingston Upon Hull HU6 7RX, N Humberside, England;
4.Univ Portsmouth, Dept Geog, Portsmouth PO1 3HE, Hants, England;
5.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England;
6.British Geol Survey, NERC Isotope Geosci Lab, Nottingham NG12 5GG, England;
7.ETH, Dept Earth Sci, Inst Geol, CH-8092 Zurich, Switzerland;
8.Stockholm Univ, Dept Geol Sci, S-10691 Stockholm, Sweden;
9.ETH, Lab Ion Beam Phys, CH-8093 Zurich, Switzerland;
10.NERC Radiocarbon Facil, E Kilbride G75 0QF, Lanark, Scotland;
11.UCL, Dept Geog, London WC1E 6BT, England
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GB/T 7714
Jones, Timothy D.,Lawson, Ian T.,Reed, Jane M.,et al. Diatom-inferred late Pleistocene and Holocene palaeolimnological changes in the Ioannina basin, northwest Greece[J]. University of London,2013,49(2):185-204.
APA Jones, Timothy D..,Lawson, Ian T..,Reed, Jane M..,Wilson, Graham P..,Leng, Melanie J..,...&Tzedakis, P. C..(2013).Diatom-inferred late Pleistocene and Holocene palaeolimnological changes in the Ioannina basin, northwest Greece.JOURNAL OF PALEOLIMNOLOGY,49(2),185-204.
MLA Jones, Timothy D.,et al."Diatom-inferred late Pleistocene and Holocene palaeolimnological changes in the Ioannina basin, northwest Greece".JOURNAL OF PALEOLIMNOLOGY 49.2(2013):185-204.
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