Difference in luminescence sensitivity of coarse-grained quartz from deserts of northern China

Zheng, Chan; Zhou, Liping; Qin, Jintang

doi:10.1016/j.radmeas.2009.02.013

Cited by 40 publications

(37 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For the purposes of this study, single grain measurements also enable more reliable characterisation of quartz OSL signal and sensitivity characteristics of different samples, than can be obtained from single aliquot measurements where the combined OSL of multiple grains may obscure true sensitivity data (e.g. Zheng et al, 2009).…”

Section: Single Grain Selection Criteriamentioning

confidence: 99%

“…The rate and quantity of charge traffic is determined by the absolute number of available traps and Lcentres, as well as competition with non-luminescence (R) centres (Aitken, 1998 p.195;Zimmerman, 1971). Such characteristics relate to crystal formation and the presence of impurities (Aitken, 1985 p.41;Hashimoto et al, 1997), and hence the type of source rock (Westaway, 2009;Zheng et al, 2009). Experimental work on the thermoluminescence (TL) characteristics of quartz indicated that competition between L-and R-centres alters with subsequent exposure to temperature (e.g.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An assessment of the luminescence sensitivity of Australian quartz with respect to sediment history

Fitzsimmons¹

2011

Geochronometria

View full text Add to dashboard Cite

Abstract:This study provides a preliminary systematic characterisation of OSL sensitivity, with respect to sediment history, of single grains of Australian quartz from a variety of source rocks and depositional contexts. Samples from two distinct lithologies and with relatively short modern sedimentary histories were compared in an examination of the influence of rock type on OSL sensitivity. Sediments derived from weathered sandstone were found to be brighter than those from metamorphosed schists, suggesting that sensitivity may be inherited from the source rock and its earlier sedimentary history. Secondly, quartz from the same source, but different modes of deposition, was compared to assess the effect on sensitivity of nature of exposure to light during the most recent bleaching event. Quartz grain sensitivity appears not to vary depending on the mode of sediment deposition, suggesting that the nature of exposure to light during deposition is less important in the sensitisation process. This study highlights the complexity and variety of natural sedimentary quartz, demonstrating the limitations of an investigation based solely on OSL sensitivity. Further systematic investigation into the physical, geological and geomorphological characteristics of sediments is proposed to better understand the mechanisms of luminescence sensitisation in quartz.

show abstract

Section: Single Grain Selection Criteriamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An assessment of the luminescence sensitivity of Australian quartz with respect to sediment history

Fitzsimmons¹

2011

Geochronometria

View full text Add to dashboard Cite

show abstract

“…It is indicated in previous publications that quartz from different sources behave differently in their response to irradiation (Jain et al, 2003;Zheng et al, 2009). And the TL and OSL signal obtained in response to a fixed dose related to the sources of the grains and their thermal histories (Chen et al, 2000;Li, 2001Li, , 2002.…”

Section: Source Difference Is Not the Main Reasonmentioning

confidence: 96%

Investigations on the degree of bleaching of quartz OSL signals using modern aeolian dust from western Loess Plateau, China

Fan¹,

Fan²,

Zhao

et al. 2013

Geochronometria

View full text Add to dashboard Cite

Abstract:Optically Stimulated Luminescence signal of quartz extracted from modern aeolian dust with known maximum age (about decades) was analyzed in terms of degree of bleaching. The results of dose recovery tests show that the modified double single-aliquot regenerative-dose protocol with the early background subtraction is robust for dating these modern dusts using small aliquots. Bleaching of these dusts is discussed based on the distribution of D e values in histograms, scatter plots of D e versus sensitivity corrected natural OSL signal and comparison between measured D e and expected D e . The results indicate that most dusts were completely bleached but some dusts were not completely bleached. For those incompletely bleached dusts in Lanzhou area, the maximum OSL age overestimation is up to ~1 ka, which might be caused by fast deposition accompanied by heavy sand/dust storms. The research suggests that cautions should be given to OSL ages younger than 1 ka in the western China close to deserts.

show abstract

“…1b). Previous studies have demonstrated that the quartz grains from the Taklimakan Desert produce relatively dim OSL signals and exhibit relatively high dose saturation levels of OSL signals (Zheng et al, 2009;Lü and Sun, 2011;Gong et al, 2014b), which has been attributed to the fact that most of the quartz grains are of metamorphic origin (Ma, 2002;Yang et al, 2008). According to the 1:1 000 000 metamorphic geological map of China, most of the source metamorphic rocks belong to the greenschist facies, indicating low grade metamorphic processes.…”

Section: Geological Settingmentioning

confidence: 99%

“…Investigations have been carried out to distinguish the provenance of quartz samples from different geographic areas, using the sensitivity and dose saturation level of quartz OSL signals (e.g. Li et al, 2002;Lai and Wintle, 2006;Li et al, 2007;Zheng et al, 2009;Fitzsimmons, 2011;Lü and Sun, 2011;Sawakuchi et al, 2011Sawakuchi et al, , 2012Gong et al, 2014b;Lü et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Investigating the components of the optically stimulated luminescence signals of quartz grains from sand dunes in China

Gong

Sun

2015

Quaternary Geochronology

View full text Add to dashboard Cite

Difference in luminescence sensitivity of coarse-grained quartz from deserts of northern China

Cited by 40 publications

References 14 publications

An assessment of the luminescence sensitivity of Australian quartz with respect to sediment history

An assessment of the luminescence sensitivity of Australian quartz with respect to sediment history

Investigations on the degree of bleaching of quartz OSL signals using modern aeolian dust from western Loess Plateau, China

Investigating the components of the optically stimulated luminescence signals of quartz grains from sand dunes in China

Contact Info

Product

Resources

About