globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2013.09.023
Scopus记录号: 2-s2.0-84900422081
论文题名:
An Arctic perspective on dating Mid-Late Pleistocene environmental history
作者: Alexanderson H.; Backman J.; Cronin T.M.; Funder S.; Ingólfsson T.; Jakobsson M.; Landvik J.Y.; Löwemark L.; Mangerud J.; März C.; Möller P.; O'Regan M.; Spielhagen R.F.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 92
起始页码: 9
结束页码: 31
语种: 英语
英文关键词: Arctic ; Chronology ; Dating methods ; Pleistocene ; Stratigraphy
Scopus关键词: Geochronology ; Geomagnetism ; Luminescence ; Numerical methods ; Sediments ; Stratigraphy ; Tools ; Accuracy and precision ; Arctic ; Chronology ; Dating methods ; Environmental history ; Geological uncertainty ; Pleistocene ; Technological advances ; Correlation methods ; age determination ; climate variation ; continental shelf ; dating method ; deep sea ; environmental history ; geochronology ; marine sediment ; paleoclimate ; paleoenvironment ; Pleistocene ; stratigraphy ; terrestrial deposit ; Arctic Ocean ; Foraminifera
英文摘要: To better understand Pleistocene climatic changes in the Arctic, integrated palaeoenvironmental and palaeoclimatic signals from a variety of marine and terrestrial geological records as well as geochronologic age control are required, not least for correlation to extra-Arctic records. In this paper we discuss, from an Arctic perspective, methods and correlation tools that are commonly used to date Arctic Pleistocene marine and terrestrial events. We review the state of the art of Arctic geochronology, with focus on factors that affect the possibility and quality of dating, and support this overview by examples of application of modern dating methods to Arctic terrestrial and marine sequences.Event stratigraphy and numerical ages are important tools used in the Arctic to correlate fragmented terrestrial records and to establish regional stratigraphic schemes. Age control is commonly provided by radiocarbon, luminescence or cosmogenic exposure ages. Arctic Ocean deep-sea sediment successions can be correlated over large distances based on geochemical and physical property proxies for sediment composition, patterns in palaeomagnetic records and, increasingly, biostratigraphic data. Many of these proxies reveal cyclical patterns that provide a basis for astronomical tuning.Recent advances in dating technology, calibration and age modelling allow for measuring smaller quantities of material and to more precisely date previously undatable material (i.e. foraminifera for 14C, and single-grain luminescence). However, for much of the Pleistocene there are still limits to the resolution of most dating methods. Consequently improving the accuracy and precision (analytical and geological uncertainty) of dating methods through technological advances and better understanding of processes are important tasks for the future. Another challenge is to better integrate marine and terrestrial records, which could be aided by targeting continental shelf and lake records, exploring proxies that occur in both settings, and by creating joint research networks that promote collaboration between marine and terrestrial geologists and modellers. © 2013 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60280
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作者单位: Department of Geology, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden; Department of Geological Sciences, Stockholm University, SE-106 91 Stockholm, Sweden; US Geological Survey, Mail Stop 926A, 12201 Sunrise Valley Drive, Reston, VA 20192, United States; Geological Museum, University of Copenhagen, Øster Voldgade 5-7, DK-1350 Copenhagen K, Denmark; Faculty of Earth Sciences, University of Iceland, Askja, IS-101 Reykjavik, Iceland; Department of Plant and Environmental Sciences, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway; Department of Geosciences, National Taiwan University, No 1. Sec. 4 Roosevelt Road, P.O. Box 13-318, 106 Taipei, Taiwan; Department of Earth Science, University of Bergen, P.O. Box 7803, N-5020 Bergen, Norway; Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky-Universität Oldenburg, Carl-von-Ossietzky-Strasse 9-11, 26129 Oldenburg, Germany; Academy of Sciences Humanities and Literature Mainz, c/o GEOMAR, Helmholtz-Zentrum für Ozeanforschung, Wischhofstr. 1-3, D-24148 Kiel, Germany; University Centre in Svalbard - UNIS, P.O. Box 156, NO-9171 Longyearbyen, Norway

Recommended Citation:
Alexanderson H.,Backman J.,Cronin T.M.,et al. An Arctic perspective on dating Mid-Late Pleistocene environmental history[J]. Quaternary Science Reviews,2014-01-01,92
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