Future Directions of Luminescence Dating of Quartz

Wintle, A.G.

doi:10.2478/v10003-010-0023-3

Cited by 10 publications

(4 citation statements)

References 101 publications

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“…Thus, D e determination (Fig. A) fulfils in general the criterion for reliable D e determination with D e <2 D 0 (Wintle & Murray ; Wintle ) if a single saturating exponential function is used.…”

Section: Resultsmentioning

confidence: 85%

The loess sequence of Dolní Věstonice, Czech Republic: A new OSL‐based chronology of the Last Climatic Cycle

Fuchs

Kreutzer

Rousseau

et al. 2012

Boreas

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The Dolní Věstonice loess section in the Czech Republic is well known for its high-resolution loess-palaeosol sequence of the last interglacial-glacial climatic cycle (Upper Pleistocene). The loess section is situated in a climatic transition zone between oceanic and continental climates and is therefore of great value in reconstructing past regional climate conditions and their interaction with climate systems, in particular that of the North Atlantic. Based on a combination of optically stimulated luminescence (OSL) ages, stratigraphic field observations and magnetic susceptibility measurements, a chrono-climatic interpretation of the Dolní Věstonice loess section is presented. To establish a reliable Upper Pleistocene chronology, a quartz OSL approach was applied for equivalent dose (De) determination. Monomineralic quartz extracts of three distinct grain sizes, fine (4-11 mm), middle (38-63 mm) and coarse (90-200 mm), were used and compared. Within error limits, the calculated OSL ages are the same for the different grain sizes, and the OSL ages are in stratigraphic order. The established OSL chronology is in agreement with a Weichselian litho-and pedostratigraphy. The Dolní Věstonice loess section is characterized by four pedosedimentary subsequences. At the base of the profile, subsequence I is characterized by a distinct Early Glacial soil complex, OSL-dated to c. 110 to 70 ka, representing one of the most complete records of environmental change in the European loess belt. Subsequence II is allocated to the Lower Pleniglacial and is characterized by laminated sandy loess. Middle Pleniglacial subsequence III is represented by a brown soil complex, and is followed by the uppermost subsequence IV, characterized by a thick body of laminated sandy loess, indicating strong wind activity and a high sedimentation rate of more than~1 mm a -1 during the Upper Pleniglacial. According to the OSL chronology, as well as to the sedimentological and palaeopedological investigations, it is likely that the sequence at Dolní Věstonice has recorded most of the climatic events expressed in the NGRIP d 18 O reference record between 110 and 70 ka.

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Section: Resultsmentioning

confidence: 85%

The loess sequence of Dolní Věstonice, Czech Republic: A new OSL‐based chronology of the Last Climatic Cycle

Fuchs

Kreutzer

Rousseau

et al. 2012

Boreas

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“…Separation of a 'clean' fast OSL component is thought to be required for reliable dating, as it is rapidly zeroed by sunlight and has sufficient thermal stability for dating the last few million years (Wintle and Murray, 2006;Wintle, 2010). In their study of Japanese loess, Watanuki et al (2005) separated their CW-OSL signals from fine grained quartz into 3 components each decaying exponentially.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Optically stimulated luminescence signals from quartz: A review

Wintle

Adamiec

2017

Radiation Measurements

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Optically stimulated luminescence (OSL) was first observed from natural quartz 30 years ago. Since it increases with exposure to radiation, OSL has been developed as a dating tool for sediments. Most commonly, the OSL signal is observed using optical filters that pass wavelengths centred on 340 nm during optical stimulation at 470 nm. Experimental evidence behind the choice of measurement conditions for dating is presented, for example, information on the emission spectra. Different methods of optical stimulation are reviewed, including non-linear application of stimulation power; these are related to isolation of the fast OSL component that is most appropriate for dating sediments. Practical methods for fast OSL component separation are mentioned. Information on the stimulation process has been obtained by varying the wavelength during measurement and by varying the stimulation temperature. On the other hand, information on the recombination process is provided by observing the OSL emitted when the stimulation source is pulsed; this has practical applications when feldspar contamination is expected. Although laboratory experiments imply more than adequate thermal stability of the fast OSL signal for dating back to a million years, ages determined in the laboratory using the single aliquot regenerative dose procedure do not agree with independent ages. To address this problem, luminescence signals derived from the same electron trap, as well as those resulting from stimulation in the infrared (875 nm) and in the violet (405 nm), have been investigated as potential dating tools.

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“…Absolute chronological control for the deposition of key glacial deposits was established through the employments of OSL dating (e.g. Wintle, 2010) and relative chronological control was established through the analysis of cross-cutting and overprinted deformation structures.…”

Section: Objectives and Methodsmentioning

confidence: 99%

Glaciotectonic deformation and reinterpretation of the Worth Point stratigraphic sequence: Banks Island, NT, Canada

Vaughan

England

Evans

2014

Quaternary Science Reviews

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. (2014) 'Glaciotectonic deformation and reinterpretation of the Worth Point stratigraphic sequence : Banks Island, NT, Canada.', Quaternary science reviews., 91 . pp. 124-145.Further information on publisher's website:http://dx.doi.org/10.1016/j.quascirev. 2013.11.005 Publisher's copyright statement: NOTICE: this is the author's version of a work that was accepted for publication in Quaternary Science Reviews. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reected in this document. Changes may have been made to this work since it was submitted for publication. A denitive version was subsequently published in Quaternary Science Reviews, 91, 1 May 2014, 10.1016/j.quascirev.2013 Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Hill-hole pairs, comprising an ice-pushed hill and associated source depression, cluster in a belt along the west coast of Banks Island, NT. Ongoing coastal erosion at Worth Point, southwest Banks Island, has exposed a section (6 km long and w30 m high) through an ice-pushed hill that was transported w 2 km from a corresponding source depression to the southeast. The exposed stratigraphic sequence is polydeformed and comprises folded and faulted rafts of Early Cretaceous and Late Tertiary bedrock, a prominent organic raft, Quaternary glacial sediments, and buried glacial ice. Three distinct structural domains can be identified within the stratigraphic sequence that represent proximal to distal deformation in an ice-marginal setting. Complex thrust sequences, interfering foldsets, brecciated bedrock and widespread shear structures superimposed on this ice-marginally deformed sequence record subsequent deformation in a subglacial shear zone. Analysis of crosscutting relationships within the stratigraphic sequence combined with OSL dating indicate that the Worth Point hill-hole pair was deformed during two separate glaciotectonic events. Firstly, ice sheet advance constructed the hill-hole pair and glaciotectonized the strata ice-marginally, producing a proximal to distal deformation sequence. A glacioisostatically forced marine transgression resulted in extensive reworking of the strata and the deposition of a glaciomarine diamict. A readvance during this initial stage redeformed the strata in a subglacial shear zone, overprinting complex deformation structures and depositing a glaciotectonite w20 m thick. Outwash channels that incise the subglacially deformed strata...

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Future Directions of Luminescence Dating of Quartz

Abstract: Recent developments in our understanding of the limitations of optically stimulated luminescence as a dating tool are presented alongside summaries of results obtained on other luminescence signals measured in sedimentary quartz grains.

Cited by 10 publications

References 101 publications

The loess sequence of Dolní Věstonice, Czech Republic: A new OSL‐based chronology of the Last Climatic Cycle

The loess sequence of Dolní Věstonice, Czech Republic: A new OSL‐based chronology of the Last Climatic Cycle

Optically stimulated luminescence signals from quartz: A review

Glaciotectonic deformation and reinterpretation of the Worth Point stratigraphic sequence: Banks Island, NT, Canada

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