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Applicability of a quartz OSL standardised growth curve for D-edetermination up to 400 Gy for lacustrine sediments from the QaidamBasin of the Qinghai-Tibetan Plateau
Long, Hao; Lai, ZhongPing; Fan, QiShun; Sun, YongJuan; Liu, XiangJun
2010
Source PublicationQUATERNARY GEOCHRONOLOGY
ISSN1871-1014
Volume5Issue:2-3Pages:212-217
AbstractThe standardised growth curve (SGC) for quartz OSL has recently been developed as a practical means to reduce measurement times when determining palaeodoses using quartz of aeolian sediments, especially loess and desert sand from the same section or the same geographical area. In the present study, we test the performance of SGCs for lacustrine sediments of three cores in the Qaidam Basin of the Qinghai-Tibetan Plateau (QTP) in China. A total of nine samples were collected (three samples from each of the three cores), and silt-sized (38-63 mu m) quartz was extracted for the experiment. The results demonstrated that: (a) Nine samples display similar dose-response curves up to a regeneration dose of 600 Gy using single aliquot regenerative-dose (SAR) protocol, suggesting the existence of a standardised growth curve for lacustrine sediments in the Qaidam Basin; (b) For samples with D(e)s of up to 400 Gy, the Des determined by the SGC are in agreement with the D(e)s by the SAR protocol, suggesting that the SGC approach could be used for D-e determination up to a dose of 400 Gy for lacustrine samples from the Qaidam Basin of the Qinghai-Tibetan Plateau in China; (c) The saturation dose for these samples is more than 600 Gy, and in the growth curve a linear growth part was observed in the high dose range of >200 Gy. (C) 2009 Elsevier B.V. All rights reserved. The standardised growth curve (SGC) for quartz OSL has recently been developed as a practical means to reduce measurement times when determining palaeodoses using quartz of aeolian sediments, especially loess and desert sand from the same section or the same geographical area. In the present study, we test the performance of SGCs for lacustrine sediments of three cores in the Qaidam Basin of the Qinghai-Tibetan Plateau (QTP) in China. A total of nine samples were collected (three samples from each of the three cores), and silt-sized (38-63 mu m) quartz was extracted for the experiment. The results demonstrated that: (a) Nine samples display similar dose-response curves up to a regeneration dose of 600 Gy using single aliquot regenerative-dose (SAR) protocol, suggesting the existence of a standardised growth curve for lacustrine sediments in the Qaidam Basin; (b) For samples with D(e)s of up to 400 Gy, the Des determined by the SGC are in agreement with the D(e)s by the SAR protocol, suggesting that the SGC approach could be used for D-e determination up to a dose of 400 Gy for lacustrine samples from the Qaidam Basin of the Qinghai-Tibetan Plateau in China; (c) The saturation dose for these samples is more than 600 Gy, and in the growth curve a linear growth part was observed in the high dose range of >200 Gy. (C) 2009 Elsevier B.V. All rights reserved.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/1924
Collection青海盐湖研究所知识仓储
Recommended Citation
GB/T 7714
Long, Hao,Lai, ZhongPing,Fan, QiShun,et al. Applicability of a quartz OSL standardised growth curve for D-edetermination up to 400 Gy for lacustrine sediments from the QaidamBasin of the Qinghai-Tibetan Plateau[J]. QUATERNARY GEOCHRONOLOGY,2010,5(2-3):212-217.
APA Long, Hao,Lai, ZhongPing,Fan, QiShun,Sun, YongJuan,&Liu, XiangJun.(2010).Applicability of a quartz OSL standardised growth curve for D-edetermination up to 400 Gy for lacustrine sediments from the QaidamBasin of the Qinghai-Tibetan Plateau.QUATERNARY GEOCHRONOLOGY,5(2-3),212-217.
MLA Long, Hao,et al."Applicability of a quartz OSL standardised growth curve for D-edetermination up to 400 Gy for lacustrine sediments from the QaidamBasin of the Qinghai-Tibetan Plateau".QUATERNARY GEOCHRONOLOGY 5.2-3(2010):212-217.
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