globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2012.07.015
Scopus记录号: 2-s2.0-84879561600
论文题名:
Understanding past climatic and hydrological variability in the mediterranean from Lake Prespa sediment isotope and geochemical record over the last glacial cycle
作者: Leng M.J.; Wagner B.; Boehm A.; Panagiotopoulos K.; Vane C.H.; Snelling A.; Haidon C.; Woodley E.; Vogel H.; Zanchetta G.; Baneschi I.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 66
起始页码: 123
结束页码: 136
语种: 英语
英文关键词: Geochemistry ; Lake ; Late quaternary ; Mediterranean ; Rock eval pyrolysis ; Stable isotopes
Scopus关键词: Central Mediterranean ; Hydrological variability ; Late quaternary ; Marine isotope stages ; Mediterranean ; Reducing conditions ; Rock-Eval pyrolysis ; Stable isotopes ; Carbon ; Geochemistry ; Glacial geology ; Iron ores ; Isotopes ; Oxygen ; Productivity ; Sediments ; Lakes ; bottom water ; climate effect ; hydrological change ; lacustrine deposit ; lake water ; Last Glacial ; marine isotope stage ; Mediterranean environment ; methanogenesis ; oxidation ; oxygen isotope ; paleoclimate ; paleoecology ; paleohydrology ; palynology ; preservation ; pyrolysis ; stable isotope ; Albania ; Lake Mikri Prespa ; Macedonia [Southern Europe]
英文摘要: Here we present stable isotope and geochemical data from Lake Prespa (Macedonia/Albania border) over the Last Glacial cycle (Marine Isotope Stages 5e1) and discuss past lake hydrology and climate (TIC, oxygen and carbon isotopes), as well as responses to climate of terrestrial and aquatic vegetation (TOC, Rock Eval pyrolysis, carbon isotopes, pollen). The Lake Prespa sediments broadly fall into 5 zones based on their sedimentology, geochemistry, palynology and the existing chronology. The Glacial sediments suggest low supply of carbon to the lake, but high summer productivity; intermittent siderite layers suggest that although the lake was likely to have mixed regularly leading to enhanced oxidation of organic matter, there must have been within sediment reducing conditions and methanogenesis. MIS 5 and 1 sediments suggest much more productivity, higher rates of organic material preservation possibly due to more limited mixing with longer periods of oxygen-depleted bottom waters. We also calculated lakewater d18O from siderite (authigenic/Glacial) and calcite (endogenic/Holocene) and show much lower lakewater d18O values in the Glacial when compared to the Holocene, suggesting the lake was less evaporative in the Glacial, probably as a consequence of cooler summers and longer winter ice cover. In the Holocene the oxygen isotope data suggests general humidity, with just 2 marked arid phases, features observed in other Eastern and Central Mediterranean lakes. © 2012 Elsevier Ltd.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60757
Appears in Collections:过去全球变化的重建

Files in This Item:

There are no files associated with this item.


作者单位: Department of Geology, University of Leicester, Leicester LE1 7RH, United Kingdom; NERC Isotope Geosciences Laboratory (NIGL), British Geological Survey, Keyworth, Nottingham NG12 5GG, United Kingdom; Institute for Geology and Mineralogy, University of Cologne, 50674 Köln, Germany; Seminar of Geography and Education, University of Cologne, Gronewaldstrae 2, 50931 Köln, Germany; British Geological Survey, Keyworth, Nottingham NG12 5GG, United Kingdom; Climate Impacts Research Centre (CIRC), Department of Ecology and Environmental Science, Umea University, c/o Abisko Naturvetenskapliga Station, SE-981 07 Abisko, Sweden; Dipartimento di Scienze della Terra, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy; Istituto di Geoscienze e Georisorse-CNR (IGG-CNR), Via Moruzzi 1, 56124 Pisa, Italy; INGV sez. Pisa, Via della Faggiola 32, 56124 Pisa, Italy; Department of Geography, University of Exeter, Exeter EX4 4RJ, United Kingdom

Recommended Citation:
Leng M.J.,Wagner B.,Boehm A.,et al. Understanding past climatic and hydrological variability in the mediterranean from Lake Prespa sediment isotope and geochemical record over the last glacial cycle[J]. Quaternary Science Reviews,2013-01-01,66
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Leng M.J.]'s Articles
[Wagner B.]'s Articles
[Boehm A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Leng M.J.]'s Articles
[Wagner B.]'s Articles
[Boehm A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Leng M.J.]‘s Articles
[Wagner B.]‘s Articles
[Boehm A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.