Fundamental investigations of natural and laboratory generated SAR dose response curves for quartz OSL in the high dose range

Timar-Gabor, Alida; Constantin, Daniela; Buylaert, Jan‐Pieter; Jain, Mayank; Murray, Andrew; Wintle, A.G.

doi:10.1016/j.radmeas.2015.01.013

Cited by 39 publications

(25 citation statements)

References 30 publications

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“…() and Timar‐Gabor et al . (), who found that natural dose response curves saturate much earlier than laboratory‐generated dose response curves. It has also been shown in the past that quartz signals from different regions such as the Alpine Foreland or the Chinese loess plateau may suffer from thermal instability, which can lead to age underestimations (e.g.…”

Section: Luminescence Datingmentioning

confidence: 99%

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A luminescence‐based chronology for the Harletz loess sequence, Bulgaria

Lomax

Fuchs

Antoine

et al. 2018

Boreas

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The Harletz loess‐palaeosol sequence is located in northwestern Bulgaria and represents an important link between well‐studied loess sequences in eastern Romania and further sites to the west of the Carpathians (e.g. Serbia and Hungary). The aim of this study was to establish a chronostratigraphy of the deposits, using various methods of luminescence dating, together with basic stratigraphical field observations as well as magnetic properties. Luminescence dating was carried out using the quartz fine grain fraction and a SAR protocol, and the feldspar coarse grain fraction, applying the MET‐pIRIR protocol. Due to underestimation of the quartz fine grain fraction in the lower parts of the sequence, the resulting chronology is mainly based on the feldspar ages, which are derived from the stimulation temperature at 150 °C. A comparison with nearby sequences from Serbia, Hungary and Romania, and interpretations obtained through the stratigraphical and sedimentological signature of the sequence, supports the established chronology. Our data suggest that the prominent palaeosol (soil complex) in the upper quarter of the sequence was formed during MIS 5. It would follow that large parts of the Last Glacial loess overlying this palaeosol were probably eroded, and that the thick loess accumulation underlying this soil complex can be allocated to the penultimate glacial (MIS 6). A prominent MIS 6 tephra, which has been reported from other sequences in the area, is also present at Harletz.

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Section: Luminescence Datingmentioning

confidence: 99%

“…; Timar‐Gabor et al . ). Transferred to loess with its typical dose rate, this corresponds to an upper age limit of around 50–70 ka.…”

mentioning

confidence: 97%

A luminescence‐based chronology for the Harletz loess sequence, Bulgaria

Lomax

Fuchs

Antoine

et al. 2018

Boreas

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“…Especially considering the differences between grains sizes (Timar-Gabor et al, 2015b;Timar-Gabor and Wintle, 2013) and differences between natural and laboratory growth curve shapes (e.g. Chapot et al, 2012;Timar-Gabor et al, 2015a), which both seem to start around 100-150 Gy, this problem becomes evident. Until the underlying processes are better understood, it is advisable to investigate the quartz OSL signal thoroughly, apply preheat plateau tests routinely, and abandon the dating of samples that show a preheat dependency, especially for samples with high paleodoses.…”

Section: Evaluation Of the Quartz Characteristicsmentioning

confidence: 99%

New luminescence-based geochronology framing the last two glacial cycles at the southern limit of European Pleistocene loess in Stalać (Serbia)

et al. 2017

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Abstract:A new geochronology was established for the Stalać loess-paleosol sequence (LPS) in Serbia. The section is located in the interior of the Central Balkan region, south of the typical loess distribution, in a zone of paleoclimatic shifts between continental and Mediterranean climate regimes. The sampled sequence contains four well-developed paleosol and loess layers, a crypto tephra and one visible tephra layer. Optically stimulated luminescence measurements showed a strong dependency of preheat temperature on equivalent dose for one fine-grained quartz sample, which makes it unsuitable for dating. A firm chronology framing the last two glacial cycles was established using finegrained polyminerals and the post-infrared infrared stimulated luminescence (pIR 50 IR 290 ) protocol instead. The characteristics of dated paleosols indicate similar climatic conditions during the last interstadial and interglacial phases, which were different from the penultimate interglacial period. The tephra within the L2 loess, probably related to tephra layers also found in other sections in Southeastern Europe, was sandwich-dated. The results indicate an age between 118 ka and 141 ka. Furthermore, a weak pedogenic layer dated to between 126 ka and 148 ka gives a first numerical age to this soil formation in Southeastern Europe.

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“…Ultimately, this should lead to the production of ages that are more accurate as well as the extension of maximum and minimum age limits that can be obtained using luminescence methods. Such eforts include studies that aim to understand the behavior of quarz at high doses [115,116].…”

Section: Current and Future Trends In Luminescence Datingmentioning

confidence: 99%

“…The information should lead to the formulation of protocols that extend the upper limit of ages obtainable using quarz [116].…”

Section: Current and Future Trends In Luminescence Datingmentioning

confidence: 99%

Luminescence Dating: Applications in Earth Sciences and Archaeology

Munyikwa¹

2016

Luminescence - An Outlook on the Phenomena and Their Applications

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Over the last 60 years, luminescence dating has developed into a robust chronometer for applications in earth sciences and archaeology. The technique is particularly useful for dating materials ranging in age from a few decades to around 100,000-150,000 years. In this chapter, following a brief outline of the historical development of the dating method, basic principles behind the technique are discussed. This is followed by a look at measurement equipment that is employed in determining age and its operation. Luminescence properties of minerals used in dating are then examined after which procedures used in age calculation are looked at. Sample collection methods are also reviewed, as well as types of materials that can be dated. Continuing reinements in both methodology and equipment promise to yield luminescence chronologies with improved accuracy and extended dating range in the future and these are briely discussed.

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Fundamental investigations of natural and laboratory generated SAR dose response curves for quartz OSL in the high dose range

Cited by 39 publications

References 30 publications

A luminescence‐based chronology for the Harletz loess sequence, Bulgaria

A luminescence‐based chronology for the Harletz loess sequence, Bulgaria

New luminescence-based geochronology framing the last two glacial cycles at the southern limit of European Pleistocene loess in Stalać (Serbia)

Luminescence Dating: Applications in Earth Sciences and Archaeology

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