On the importance of grain size in luminescence dating using quartz

doi:10.1016/j.radmeas.2017.01.009

	On the importance of grain size in luminescence dating using quartz
	Timar-Gabor, A.1,2; Buylaert, J. -P.3,4; Guralnik, B.5,6; Trandafir-Antohi, O.2,7; Constantin, D.2; Anechitei-Deacu, V.1,2; Jain, M.4; Murray, A. S.3,4; Porat, N.8; Hao, Q.9
刊名	RADIATION MEASUREMENTS
	2017-11-01
卷号	106 页码:464-471
关键词	Quartz Osl Sar Dose Response Saturation Characteristics Grain Size
ISSN号	1350-4487
DOI	10.1016/j.radmeas.2017.01.009
文献子类	Article
英文摘要	There are two major problems commonly encountered when applying Optically Stimulated Luminescence (OSL) dating in the high dose range: (i) age discrepancy between different grain sizes, and (ii) age underestimation. A marked and systematic discrepancy between fine-grain (4-11 mu m) and coarse-grain (63-90 mu m) quartz single aliquot regeneration protocol (SAR) ages has been reported previously for Romanian and Serbian loess >40 ka (D-e of similar to 100 Gy), generally with fine-grain ages underestimating the depositional age. In this paper, we show a similar age pattern for two grain size fractions from Chinese loess, thus pointing to a potential worldwide phenomenon. While age underestimation is often attributed to signal saturation problems, this is not the case for fine grain material, which saturates at higher doses than coarse grains, yet begins to underestimate true ages earlier. Here we examine the dose response curves of quartz from different sedimentary contexts around the world, using a range of grain sizes (diameters of 4-11 mu m, 11-30 mu m, 35-50 mu m, 63-90 mu m, 90-125 mu m, 125-180 mu m, and 180 250 gm). All dose response curves can be adequately described by a sum of two saturating exponential functions, whose saturation characteristics (Do values) are clearly anticorrelated with grain diameter (phi) through an inverse square root relationship, D-0 = A/root phi, where A is a scaling factor. While the mechanism behind this grain-size dependency of saturation characteristics still needs to be understood, our results show that the observation of an extended SAR laboratory dose response curve does not necessarily enable high doses to be recorded accurately, or provide a corresponding extended age range. (c) 2017 The Authors. Published by Elsevier Ltd.
WOS关键词	OPTICALLY STIMULATED LUMINESCENCE ; DOSE-RESPONSE CURVES ; CHINESE LOESS PLATEAU ; ARCTIC ICE SHEETS ; COARSE-QUARTZ ; SOUTHERN ROMANIA ; GROWTH CURVE ; ASH LAYER ; OSL ; FINE
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000419417500085
资助机构	European Research Council (ERC) under the European Union's Horizon research and innovation programme(678106 ; European Research Council (ERC) under the European Union's Horizon research and innovation programme(678106 ; Netherlands Organisation for Scientific Research (NWO) VENI grant(863.15.026) ; Netherlands Organisation for Scientific Research (NWO) VENI grant(863.15.026) ; 639904) ; 639904) ; European Research Council (ERC) under the European Union's Horizon research and innovation programme(678106 ; European Research Council (ERC) under the European Union's Horizon research and innovation programme(678106 ; Netherlands Organisation for Scientific Research (NWO) VENI grant(863.15.026) ; Netherlands Organisation for Scientific Research (NWO) VENI grant(863.15.026) ; 639904) ; 639904) ; European Research Council (ERC) under the European Union's Horizon research and innovation programme(678106 ; European Research Council (ERC) under the European Union's Horizon research and innovation programme(678106 ; Netherlands Organisation for Scientific Research (NWO) VENI grant(863.15.026) ; Netherlands Organisation for Scientific Research (NWO) VENI grant(863.15.026) ; 639904) ; 639904) ; European Research Council (ERC) under the European Union's Horizon research and innovation programme(678106 ; European Research Council (ERC) under the European Union's Horizon research and innovation programme(678106 ; Netherlands Organisation for Scientific Research (NWO) VENI grant(863.15.026) ; Netherlands Organisation for Scientific Research (NWO) VENI grant(863.15.026) ; 639904) ; 639904)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82558]
专题	中国科学院地质与地球物理研究所
通讯作者	Timar-Gabor, A.
作者单位	1.Babes Bolyai Univ, Fac Environm Sci & Engn, Cluj Napoca, Romania 2.Babes Bolyai Univ, Interdisciplinary Res Inst Bionanosci, Cluj Napoca, Romania 3.Aarhus Univ, Dept Geosci, Nord Lab Luminescence Dating, DTU Riso Campus, Roskilde, Denmark 4.Tech Univ Denmark, Ctr Nucl Technol, DTU Riso Campus, Roskilde, Denmark 5.Wageningen Univ, Soil Geog & Landscape Grp, Wageningen, Netherlands 6.Wageningen Univ, Netherlands Ctr Luminescence Dating, Wageningen, Netherlands 7.Babes Bolyai Univ, Fac Phys, Cluj Napoca, Romania 8.Geol Survey Israel, Jerusalem, Israel 9.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China 10.Aberystwyth Univ, Inst Geog & Earth Sci, Aberystwyth, Dyfed, Wales
推荐引用方式 GB/T 7714	Timar-Gabor, A.,Buylaert, J. -P.,Guralnik, B.,et al. On the importance of grain size in luminescence dating using quartz[J]. RADIATION MEASUREMENTS,2017,106:464-471.
APA	Timar-Gabor, A..,Buylaert, J. -P..,Guralnik, B..,Trandafir-Antohi, O..,Constantin, D..,...&Wintle, A. G..(2017).On the importance of grain size in luminescence dating using quartz.RADIATION MEASUREMENTS,106,464-471.
MLA	Timar-Gabor, A.,et al."On the importance of grain size in luminescence dating using quartz".RADIATION MEASUREMENTS 106(2017):464-471.