Problems and potential of OSL dating Weichselian and Holocene sediments in Sweden

Alexanderson, Helena; Murray, Andrew

doi:10.1016/j.quascirev.2009.09.020

Cited by 68 publications

(75 citation statements)

References 42 publications

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“…This is demonstrated by this volume which contains new results from OSL dating studies from Sweden (Alexanderson and Murray, 2012) Alexanderson and Murray, 2012). It must be stressed that different dating methods date different processes in landscape development, as shown by Lüthgens and Böse (2012) in their analysis of OSL and surface exposure dating of the glaciogenic landscapes around Berlin.…”

Section: Osl Dating Of Glacial Sedimentsmentioning

confidence: 91%

“…The issue of morphostratigraphy is also considered systematically in a separate paper on this development of this topic with regard to the interpretation of the glacial history of northern Germany. Alexanderson and Murray (2012) present the results of an experiment to determine why, in many cases the OSL determinations produce results that do not accord (usually over-estimate) with the age expected from other, independent methods such as relationship with radiocarbon ages, cosmogenic radionuclide ages and glaciological principles applied to the location and stratigraphic context of the sediments. The experiment is based on a large number of ages taken from a wide range of relevant environments across Sweden, with a number of other determinations from other contexts to provide calibration.…”

Section: Brief Review Of the Content Of The Issuementioning

confidence: 99%

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Quaternary glaciations of northern Europe

Böse

Lüthgens

Lee

et al. 2012

Quaternary Science Reviews

119

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This paper presents the outcome of a workshop, held in Berlin in February 2009, concerned with current research on the glacial history of northern Europe, including the British Isles. The methodologies presently used to resolve this topic are outlined. Particular attention is given to new analytical methods deriving from high resolution remote imaging of glacial terrain both on land and on the sea-bed, key new stratigraphic sections, higher resolution results from conventional geochronological methods like radiocarbon and more recently developed technologies such as luminescence and cosmogenic radionuclide dating. The relationships between the results derived from these two methods are discussed in further detail along with possible explanations for these differences. An outline of a 'most likely' glacial history of the Scandinavian and British and Irish Ice Sheets is presented along with possible links to global climate change as represented by the marine isotope (MIS) record. Tentative evidence for glaciation is identified in MIS 22, 16, 12, 10, 8, 6, 4 and 2 and correlations of 'phases' within the Last Glaciation are also explored for both the Scandinavian and British and Irish Ice Sheets. The results show that the character and extent of glaciation in different parts of the region are not synchronous and much more geochronological work is required before regional correlations can be established with confidence. Keywords: glaciation, marine isotope stages (MIS), Scandinavian Ice Sheet (SIS), British and Irish Ice Sheet (BIIS), Last Glacial Maximum Introduction and objectivesThe glaciation of northern Europe has been a subject of interest and debate for over 200 years and today, at a time of greater awareness to the consequences of climate change, the subject retains its relevance to science and society. With the development of new methodologies for dating glacial deposits and important new findings for modelling glacier response to climate change this subject requires re-evaluation and re-interpretation. Likewise it has been possible to identify critical issues that should be the focus for future research. Consequently, in February 2009 an exploratory workshop was held at the Freie Universität Berlin to examine the frequency and timing of glaciations in northern Europe (including Britain) during the Middle and Late Pleistocene. The workshop was funded by the DFG (Deutsche Forschungsgmeinschaft/ German Research Foundation) and involved 24 participants. This issue of Quaternary Science Reviews includes a number of the contributions presented and discussed at the meeting along with certain invited papers that present new findings on the topic of the special issue. This paper will begin by briefly reviewing the contents of the issue giving particular attention to new and important findings. This will be followed by a section that will evaluate the methodologies currently being applied to understand the glaciations of northern Europe. Some of these methodologies, such as lithostratigraphy and morphostratig...

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Section: Osl Dating Of Glacial Sedimentsmentioning

confidence: 91%

Section: Brief Review Of the Content Of The Issuementioning

confidence: 99%

Quaternary glaciations of northern Europe

Böse

Lüthgens

Lee

et al. 2012

Quaternary Science Reviews

119

View full text Add to dashboard Cite

show abstract

“…Alexanderson and Murray, 2012a;Johnsen et al, 2012), although they typically contain ages that overestimate the expected age range, presumably due to incomplete bleaching. Several recent studies have investigated the luminescence properties of quartz and feldspar from modern depositional environments, thereby testing the significance of incomplete bleaching in different glacial settings (Alexanderson, 2007;Alexanderson and Murray, 2012b). Alexanderson and Murray (2012b) showed that the risk for incompletely bleached grains is largest in subglacial till and proximal glaciofluvial sediment, and least in distal glaciofluvial and lacustrine sediment.…”

Section: Luminescence Datingmentioning

confidence: 99%

On the reconstruction of palaeo-ice sheets: Recent advances and future challenges

Stokes

Tarasov

Blomdin

et al. 2015

Quaternary Science Reviews

142

101

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“…However, the amount of light emitted for a fixed radiation dose varies from one sample to another, and among aliquots of the same sample. This variation in sensitivity among samples is the result of different source rocks and sedimentary histories (Preusser et al 2006, Pietsch et al 2008, Alexanderson and Murray 2009, Zheng et al 2009, Fitzsimmons et al 2010. Thus, there is not a general relationship between the luminescence intensity and the radiation dose, i.e.…”

Section: Measurement Of Equivalent-dosementioning

confidence: 99%

Luminescence characteristics of quartz from Brazilian sediments and constraints for OSL dating

Guedes

Sawakuchi

Giannini

et al. 2013

An. Acad. Bras. Ciênc.

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This study analyzes the optically stimulated luminescence (OSL) characteristics of quartz grains from fluvial, eolian and shallow marine sands of northeastern and southeastern Brazil, with especial focus on the applicability of the single-aliquot regenerative dose (SAR) dating protocol. All analyzed Brazilian sediments presented relatively high OSL sensitivity and good behavior regarding their luminescence characteristics relevant for radiation dose estimation. However, some samples from the Lençóis Maranhenses region in northeastern Brazil showed inadequate OSL sensitivity correction, hampering the implementation of the SAR protocol and their ability to behave as a natural dosimeter. While the shallow marine and eolian samples showed a narrow and reliable dose distribution, the fluvial sample had a wide dose distribution, suggesting incomplete bleaching and natural doses estimates dependent on age models.

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Problems and potential of OSL dating Weichselian and Holocene sediments in Sweden

Cited by 68 publications

References 42 publications

Quaternary glaciations of northern Europe

Quaternary glaciations of northern Europe

On the reconstruction of palaeo-ice sheets: Recent advances and future challenges

Luminescence characteristics of quartz from Brazilian sediments and constraints for OSL dating

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