DOI: 10.1016/j.quascirev.2015.10.043
Scopus记录号: 2-s2.0-84959108630
论文题名: Human-climate interactions in the central Mediterranean region during the last millennia: The laminated record of Lake Butrint (Albania)
作者: Morellón M. ; Anselmetti F.S. ; Ariztegui D. ; Brushulli B. ; Sinopoli G. ; Wagner B. ; Sadori L. ; Gilli A. ; Pambuku A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 136 起始页码: 134
结束页码: 152
语种: 英语
英文关键词: Geochemistry
; Holocene
; Lagoon
; Laminated sediments
; Mediterranean
; Pollen
; Sediment cores
; Sedimentology
Scopus关键词: Biology
; Catchments
; Climatology
; Geochemistry
; Productivity
; Sedimentology
; Sediments
; Tectonics
; Holocenes
; Lagoon
; Laminated sediments
; Mediterranean
; Pollen
; Sediment core
; Lakes
英文摘要: Lake Butrint (39°47 N, 20°1 E) is a ca. 21 m deep, coastal lagoon located in SW Albania where finely-laminated sediments have been continuously deposited during the last millennia. The multi-proxy analysis (sedimentology, high-resolution elemental geochemistry and pollen) of a 12 m long sediment core, supported by seven AMS radiocarbon dates and 137Cs dating, enable a precise reconstruction of the environmental change that occurred in the central Mediterranean region during the last ~4.5 cal kyrs BP. Sediments consist of triplets of authigenic carbonates, organic matter and clayey laminae. Fluctuations in the thickness and/or presence of these different types of seasonal laminae indicate variations in water salinity, organic productivity and runoff in the lake's catchment, as a result of the complex interplay of tectonics, anthropogenic forcing and climate variability. The progradation of the Pavllo river delta, favoured by variable human activity from the nearby ancient city of Butrint, led to the progressive isolation of this hydrological system from the Ionian Sea. The system evolved from an open bay to a restricted lagoon, which is consistent with archaeological data. An abrupt increase in mass-wasting activity between 1515 and 1450 BC, likely caused by nearby seismic activity, led to the accumulation of 24 homogenites, up to 17 cm thick. They have been deposited during the onset of finely laminated sedimentation, which indicates restricted, anoxic bottom water conditions and higher salinity. Periods of maximum water salinity, biological productivity, and carbonate precipitation coincide with warmer intervals, such as the early Roman Warm Period (RWP) (500 BC-0 AD), the Medieval Climate Anomaly (MCA) (800-1400 AD) and recent times (after 1800 AD). Conversely, lower salinity and more oxic conditions, with higher clastic input were recorded during 1400-500 BC, the Late Roman and the Early Medieval periods (0-800 AD) and during the Little Ice Age (1400-1800 AD). Hydrological fluctuations recorded in Butrint are in phase with most central and western Mediterranean records and correlate with NAO variability. In contrast, opposite hydrological patterns have been recorded in the Eastern Balkans and the Levant during the last millennium, emphasizing a complex spatial variability in the region. Phases of maximum settlement intensity in Butrint (Roman-Late Antique) coincide with warmer and/or stable climate periods (0-800 AD and MCA, respectively), indicating a long-term influence of climatic conditions on human activities. The Late Holocene sedimentary record of Lake Butrint demonstrates the complex interplay of climate variability, tectonics and human impact in the recent evolution of coastal Mediterranean regions. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59666
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Instituto de Geociencias (CSIC, UCM), Facultad de Ciencias Geológicas, Univ. Complutense, Calle José Antonio Nováis, 2, 3a planta, 3b, Madrid, Spain; Swiss Federal Institute of Aquatic Science and Technology, Eawag, Ueberlandstrasse 133, Dübendorf, Switzerland; Institute of Geological Sciences and Oeschger Centre of Climate Change Research, University of Bern, Baltzerstrasse 1, Bern, Switzerland; Department of Earth Sciences, University of Geneva, Rue des Maraîchers 13, Geneva, Switzerland; Albanian Geological Survey, Rruga e Kavajes, Nr. 153, Tirana, Albania; Dipartimento di Biologia Ambientale, Sapienza University of Rome, Italy; Dipartimento di Scienze della Terra, Sapienza University of Rome, Italy; Department of Geology and Mineralogy, University of Cologne, Cologne, Germany; Geological Institute, ETH Zurich, Sonneggstrasse 5, Zurich, Switzerland
Recommended Citation:
Morellón M.,Anselmetti F.S.,Ariztegui D.,et al. Human-climate interactions in the central Mediterranean region during the last millennia: The laminated record of Lake Butrint (Albania)[J]. Quaternary Science Reviews,2016-01-01,136