globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2014.04.008
Scopus记录号: 2-s2.0-84909639499
论文题名:
Chronostratigraphy of the 600,000 year old continental record of Lake Van (Turkey)
作者: Stockhecke M.; Kwiecien O.; Vigliotti L.; Anselmetti F.S.; Beer J.; Çağatay M.N.; Channell J.E.T.; Kipfer R.; Lachner J.; Litt T.; Pickarski N.; Sturm M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 104
起始页码: 8
结束页码: 17
语种: 英语
英文关键词: Climatostratigraphic alignment ; ICDP project PALEOVAN ; Long terrestrial paleoenvironmental records ; Magnetostratigraphy ; Radiometric dating ; Tephrostratigraphy
Scopus关键词: ICDP project PALEOVAN ; Long terrestrial paleoenvironmental records ; Magnetostratigraphy ; Radiometric dating ; Tephrostratigraphy ; argon-argon dating ; chronostratigraphy ; lithostratigraphy ; magnetostratigraphy ; NorthGRIP ; paleoclimate ; Quaternary ; radiometric method ; sediment core ; sediment property ; sedimentary sequence ; tephrochronology ; total organic carbon ; Lake Van ; Turkey
英文摘要: Lake Van sediment cores from the Ahlat Ridge and Northern Basin drill sites of the ICDP project PALEOVAN contain a wealth of information about past environmental processes. The sedimentary sequence was dated using climatostratigraphic alignment, varve chronology, tephrostratigraphy, argon-argon single-crystal dating, radiocarbon dating, magnetostratigraphy, and cosmogenic nuclides. Based on the lithostratigraphic framework, the different age constraints are compiled and a robust and precise chronology of the 600,000 year-old Lake Van record is constructed. Proxy records of total organic carbon content and sediment color, together with the calcium/potassium-ratios and arboreal pollen percentages of the 166-m-long event-corrected Ahlat Ridge record, mimic the Greenland isotope stratotype (NGRIP). Therefore, the proxy records are systematically aligned to the onsets of interstadials reflected in the NGRIP and synthesized Greenland ice-core stratigraphy. The chronology is constructed using 49 age control points derived from visual synchronization with the Greenland ice-core stratigraphy using the GICC05 timescale, an absolutely-dated speleothem timescale (e.g., Hulu, Sanbao, Linzhu cave) and the Epica Dome C timescale. In addition, the uppermost part of the sequence is complemented with four ages from Holocene varve chronology and three calibrated radiocarbon ages. Furthermore, nine argon-argon ages and a comparison of the relative paleointensity record of the magnetic field with reference curve PISO-1500 confirm the accuracy of the age model. Also the identification of the Laschamp event via measurements of 10Be in the sediment confirms the presented age model. The chronology of the Ahlat Ridge record is transferred to the 79-m-long event-corrected composite record from the Northern Basin and supplemented by additional radiocarbon dating on organic marco-remains. The basal age of the Northern Basin record is estimated at ~90ka. The variations of the time series of total organic carbon content, the Ca/K ratio, and the arboreal pollen percentages illustrate that the presented chronology links ice-marine-terrestrial stratigraphies and that the paleoclimate data are suited for reconstructions and modeling of the Quaternary and Pleistocene climate evolution in the Near East at millennial timescales. Furthermore, the chronology of the last 250ka can be used to test other dating techniques. © 2014 Elsevier Ltd.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60126
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: Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Surface Waters Research and Management, Ueberlandstrasse 133, P.O.Box 611, Dübendorf, Switzerland; ETH, Geological Institute, Zurich Universitaetsstrasse 5, Zurich, Switzerland; Ruhr-University Bochum, Universitaetstrasse 150, Bochum, Germany; Istituto di Scienze Marine, ISMAR-CNR, Bologna, Italy; Institute of Geological Sciences and Oeschger Centre for Climate Change Research, University of Bern, Baltzerstrasse 1-3, Bern, Switzerland; Department of Geological Engineering, Eastern Mediterranean Centre for Oceanography and Limnology, Istanbul Technical University, Maslak, Istanbul, Turkey; Department of Geological Sciences, University of Florida, Gainesville, FL, United States; Swiss Federal Institute of Aquatic Science and Technology, Water Resources and Drinking Water, Eawag, Ueberlandstrasse 133, P. O. Box 611, D€ubendorf, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, Swiss Federal Institute of Technology (ETH), Universitaetstrasse 16, Zurich, Switzerland; Institute of Geochemistry and Petrology, Swiss Federal Institute of Technology (ETH), Clausiusstrasse 25, Zurich, Switzerland; Steinmann Institute of Geology, Mineralogy and Paleontology, Bonn University, Nussallee 8, Bonn, Germany

Recommended Citation:
Stockhecke M.,Kwiecien O.,Vigliotti L.,et al. Chronostratigraphy of the 600,000 year old continental record of Lake Van (Turkey)[J]. Quaternary Science Reviews,2014-01-01,104
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Stockhecke M.]'s Articles
[Kwiecien O.]'s Articles
[Vigliotti L.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Stockhecke M.]'s Articles
[Kwiecien O.]'s Articles
[Vigliotti L.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Stockhecke M.]‘s Articles
[Kwiecien O.]‘s Articles
[Vigliotti L.]‘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.