Reliability study on ESR dating of the aluminum center in quartz

Lin, Min; Yin, Geng; Ding, Yanqiu; Cui, Ying; Kesheng, Chen; Chang-ping, WU; Xu, Lu

doi:10.1016/j.radmeas.2006.05.019

Cited by 22 publications

(6 citation statements)

References 14 publications

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“…Results of previous artificial bleaching experiments showed the non-bleachable part of the Al center to range from 40 to 60% (Voinchet et al, 2003;Lin et al, 2006;Tissoux et al, 2008;Liu and Grün, 2011). Our results indicate that the residual rates of the Al center varied between 66 and 70%, which is higher than those reported by previous studies.…”

Section: The Al Center Bleaching Rate and Its Differences In Various ...contrasting

confidence: 55%

“…In this situation, the fine and coarse fractions are not exposed to enough sunlight at the same time. Therefore, except for sunlight exposure, the different bleaching rates of Al centers in fine and coarse fractions arise because the coarse quartz is larger and has been trapped deeper compared to fine quartz (Voinchet et al, 2003;Lin et al,…”

Section: The Al Center Bleaching Rate and Its Differences In Various ...mentioning

confidence: 99%

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Residual electron spin resonance signals of quartz from the 2018 Baige dammed lake in Tibet: Implications for the identification of sediment layers caused by megafloods

Wei

Yin

et al. 2023

Front. Earth Sci.

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Residual doses may cause overestimation of electron spin resonance (ESR) ages for fluvial sediments. However, ESR residual doses in outburst megaflood sediments have rarely been evaluated. The Jinsha River, situated in the southeastern Tibetan Plateau, is characterized by active faults, narrowed canyons, and dammed lakes. Consequently, the river is a rare opportunity for a reconstruction study of outburst flood events from a paleo-dammed lake. After the destruction of the Baige dammed lake in the upper Jinsha River in 2018, outburst megafloods formed a thick diluvium that was deposited in broad valley land along the lower Jinsha River. Based on detailed field investigation and laboratory studies, preliminary hydraulics estimates and residual quartz ESR signals indicate the following. 1) Among the multiple quartz ESR centers, the Al, E1ʹ, Ti-H, and Ti-Li centers could be measured. The Ti-H center had the lowest residual dose and would provide relatively accurate ages for outburst megaflood sediment. 2) The Ti-Li and Al centers commonly used for ESR dating provide overestimates of 283 ± 42 ka ∼ 462 ± 63 ka and 1,010 ± 88 ka ∼ 1,400 ± 219 ka, respectively, for present outburst megaflood sediment. 3) The diverse ages given by the same ESR signal may be caused by various precursors of megaflood sediments, which are mainly sourced from landslide dams and from various terraces and slope sediments along the river. Results demonstrated that the apparent ESR ages observed for the outburst megaflood sediment in the southeastern Tibetan Plateau may be counterfeit, providing an age much older than its real age. This could be interpreted to mean that the narrowed lower channel makes the upper reaches of the broad valley appear lake-like, with diluvium deposits having large non-negligible residual ESR signals without enough exposure to adequate sunlight, despite having good stratification and sorting characteristics similar to those of fluvio-lacustrine sediments. Thus, abrupt reversal in quartz ESR ages in multiple centers observed in the geochronological framework of the fluvial sedimentary profile may indicate a diluvial or flood layer in the absence of other inducements.

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Section: The Al Center Bleaching Rate and Its Differences In Various ...contrasting

confidence: 55%

Section: The Al Center Bleaching Rate and Its Differences In Various ...mentioning

confidence: 99%

Residual electron spin resonance signals of quartz from the 2018 Baige dammed lake in Tibet: Implications for the identification of sediment layers caused by megafloods

Wei

Yin

et al. 2023

Front. Earth Sci.

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“…However, while OSL is usually limited to late middle Pleistocene time range, ESR may potentially go further back in time and cover the whole Quaternary time range (e.g. Voinchet et al, 2010), given the long term thermal stability of the ESR signal of the Al center (Toyoda and Ikeya, 1991) and its absence of saturation at high irradiation doses (Lin et al, 2006). (Fig 1).…”

Section: Chronologymentioning

confidence: 99%

The oldest human fossil in Europe, from Orce (Spain)

Toro-Moyano¹,

Martı́nez-Navarro

Agustı́

et al. 2013

Journal of Human Evolution

254

118

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The Orce region, which is known in the literature as the Spanish Olduvai, has one of the best Late Pliocene and Early Pleistocene continental paleobiological records of Europe. It is situated in the northeastern sector of the intramontane Guadix-Baza Basin (Granada, Andalusia, southern Spain). Here we describe a new fossil hominin tooth from the site of Barranco León, dated to ~1.4 Ma by a combination of Electron Spin Resonance (ESR), paleomagnetic and biochronologic methods. This is, at the moment, the oldest human remain from Western Europe.

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“…ESROD is similar to optically stimulated luminescence (OSL) such that the signal can be zeroed or reduced to a residual by exposure to sunlight during transportation, after which the signal begins to grow once buried due to exposure to environmental radiation (Yokoyama et al, 1985;Laurent et al, 1998;Beerten et al, 2006;Rink et al, 2007). Quartz has two light-sensitive paramagnetic centers (aluminum and titanium) used for dose determination; these centers have slower growth to saturation rates than OSL, which allows the possibility of dating much older deposits (Yokoyama et al, 1985;Laurent et al, 1998;Beerten et al, 2006;Lin et al, 2006;Rink et al, 2007). Rink et al (2007) established criteria for acceptance of ESROD ages, which included only allowing ages where the De values of Al and Ti are in statistical agreement.…”

Section: Introductionmentioning

confidence: 99%

Electron spin resonance optical dating of marine, estuarine, and aeolian sediments in Florida, USA

et al. 2013

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For the first time, electron spin resonance optical dating (ESROD) has been conducted on littorally transported and aeolian siliciclastic sediments in Florida. ESROD utilizes light-sensitive radiation-sensitive defects at silicon sites that have been replaced by aluminum and titanium atoms to give rise to a time-dependant signal. These defects saturate at higher levels of radiation dose, compared to optically stimulated luminescence, and therefore extend the optical dating range back into the millions of years. Our results show that the Trail Ridge Sequence is a multi-depositional unit that began deposition around 2.2 Ma and continued until 6 ka. The Osceola Cape, of the Effingham Sequence, was deposited around 1.5 Ma, and the Chatham Sequence was a multi-depositional terrace with at least three events preserved.

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Reliability study on ESR dating of the aluminum center in quartz

Cited by 22 publications

References 14 publications

Residual electron spin resonance signals of quartz from the 2018 Baige dammed lake in Tibet: Implications for the identification of sediment layers caused by megafloods

Residual electron spin resonance signals of quartz from the 2018 Baige dammed lake in Tibet: Implications for the identification of sediment layers caused by megafloods

The oldest human fossil in Europe, from Orce (Spain)

Electron spin resonance optical dating of marine, estuarine, and aeolian sediments in Florida, USA

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