RESEARCH PAPER
Constraints on the precision of SAR in equivalent dose estimations close to saturation in quartz
 
More details
Hide details
1
Laboratory of Archaeometry, Institute of Materials Science, N.C.S.R. ‘Demokritos’, Aghia Paraskevi, 153 10, Athens, Greece
 
 
Online publication date: 2011-09-22
 
 
Publication date: 2011-12-01
 
 
Geochronometria 2011;38(4):413-423
 
KEYWORDS
ABSTRACT
Difficulties in evaluating accurate equivalent doses for Late Quaternary sediments from the south coasts of Greece arose in the course of SAR measurements. Large scatter among apparent equivalent doses perplexed the evaluation of accurate mean estimates in circumstances where very large doses were involved. Besides, dose recovery experiments revealed that when intersection of the natural signal occurs onto the saturating segment of the growth curve, a distinct relationship between De and growth curve shape occurs. At very low slope angles, SAR tends to overestimate the recovered dose. The mechanism which controls the spread in equivalent dose estimation is investigated.
REFERENCES (21)
1.
Adamiec G and Aitken MJ, 1998. Dose-rate conversion factors: update. Ancient TL 16: 37–50.
 
2.
Armitage SJ, Duller GAT and Wintle AG, 2000. Quartz from southern Africa: sensitivity changes as a result of thermal pretreatment. Radiation Measurements 32(5–6): 571–577, DOI 10.1016/S1350-4487(00)00053-6. http://dx.doi.org/10.1016/S135....
 
3.
Bateman MD, Frederick CD, Jaiswal MK and Singhvi AK, 2003. Investigations into the potential effects of pedoturbation on luminescence dating. Quaternary Science Reviews 22(10–13): 1169–1176, DOI 10.1016/S0277-3791(03)00019-2. http://dx.doi.org/10.1016/S027....
 
4.
Duller GAT, 2001. Analyst manual: 36pp.
 
5.
Duller GAT, 2007. Assessing the error on equivalent dose estimates derived from single aliquot regenerative dose measurements. Ancient TL 25: 15–24.
 
6.
Jacobs Z, Wintle AG and Duller GAT, 2006. Evaluation of SAR procedures for D e determination using single aliquots of quartz from two archaeological sites in South Africa. Radiation Measurements 41(5): 520–533, DOI 10.1016/j.radmeas.2005.10.008. http://dx.doi.org/10.1016/j.ra....
 
7.
Kalchgruber R, Fuchs M, Murray AS and Wagner GA, 2003. Evaluat-ing dose-rate distributions in natural sediments using α-Al2O3: C grains. Radiation Measurements 37(4–5): 293–297, DOI 10.1016/S1350-4487(03)00012-X. http://dx.doi.org/10.1016/S135....
 
8.
Kim JC, Duller GAT, Roberts HM, Wintle AG, Lee YI and Yi SB, 2010. Re-evaluation of the chronology of the palaeolithic site at Jeongokri, Korea, using OSL and TT-OSL signals from quartz. Quaternary Geochronology 5(2–3): 365–370, DOI 10.1016/j.quageo.2009.02.005. http://dx.doi.org/10.1016/j.qu....
 
9.
Lepper K, Larsen NA and McKeever SWS, 2000. Equivalent dose distribution analysis of Holocene eolian and fuvial quartz sands from Central Oklahoma. Radiation Measurements 32(5–6): 603–608, DOI 10.1016/S1350-4487(00)00093-7. http://dx.doi.org/10.1016/S135....
 
10.
Lomax J, Hilgers A, Twidale CR, Bourne JA and Radtke U, 2007. Treatment of broad palaeodose distributions in OSL dating of dune sands from the western Murray Basin, South Australia. Quaternary Geochronology 2(1–4): 51–56, DOI 10.1016/j.quageo.2006.05.015. http://dx.doi.org/10.1016/j.qu....
 
11.
Murray AS and Funder S, 2003. Optically stimulated luminescence dating of a Danish Eemian coastal marine deposit: a test of accuracy. Quaternary Science Reviews 22(10–13): 1177–1183, DOI 10.1016/S0277-3791(03)00048-9. http://dx.doi.org/10.1016/S027....
 
12.
Murray AS and Olley JM, 2002. Precision and accuracy in the optically stimulated luminescence dating of sedimentary quartz: A status review. Geochronometria 21: 1–16.
 
13.
Murray AS and Roberts RG, 1997. Determining the burial time of single grains of quartz using optically stimulated luminescence. Earth and Planetary Science Letters 152(1–4): 163–180, DOI 10.1016/S0012-821X(97)00150-7. http://dx.doi.org/10.1016/S001....
 
14.
Murray AS and Wintle AG, 2000. Luminescence dating of quartz using an improved single — aliquot regenerative — dose protocol. Radiation Measurements 32(1): 57–73, DOI 10.1016/S1350-4487(99)00253-X. http://dx.doi.org/10.1016/S135....
 
15.
Murray AS, Wintle AG and Wallinga J, 2002. Dose estimation using quartz OSL in the non-linear region of the growth curve. Radiation Protection Dosimetry 101(1–4): 371–374.
 
16.
Murray AS, Buylaert JP, Henriksen M, Svendsen JI and Mangerud J, 2008. Testing the reliability of quartz OSL ages beyond the Eemian. Radiation Measurements 43(2–6): 776–780, DOI 10.1016/j.radmeas.2008.01.014. http://dx.doi.org/10.1016/j.ra....
 
17.
Paepe R, Mariolakos I, Van Overloop E and Keppens E, 1990. Last Interglacial-glacial north — south geosoil traverse (from stratotypes in the North Sea Basin and in the Eastern Mediterranean). Quaternary International 5: 57–70, DOI 10.1016/1040-6182(90)90025-Y. http://dx.doi.org/10.1016/1040....
 
18.
Roberts HM and Duller GAT, 2004. Standardised growth curves for optical dating of sediment using multiple-grain aliquots. Radiation Measurements 38(2): 241–252, DOI 10.1016/j.radmeas.2003.10.001. http://dx.doi.org/10.1016/j.ra....
 
19.
Singhvi AK, Bluszcz A, Batema, MD and Someshwar Rao M, 2001. Luminescence dating of loess-palaeosol sequences and cover-sands: methodological aspects and palaeoclimatic implications. Earth Science Reviews 54(1–3): 193–211, DOI 10.1016/S0012-8252(01)00048-4. http://dx.doi.org/10.1016/S001....
 
20.
Vandenberghe D, Hossain SM, De Corte F and Van den haute P, 2003. Investigation on the origin of the equivalent dose distribution in a Dutch coversand. Radiation Measurements 37(4–5): 433–439, DOI 10.1016/S1350-4487(03)00051-9. http://dx.doi.org/10.1016/S135....
 
21.
Wintle AG and Murray AS, 2006. A review of quartz optically stimulated luminescence characteristics and their relevance in single-aliquot regeneration dating protocols. Radiation Measurements 41(4): 369–391, DOI 10.1016/j.radmeas.2005.11.001. http://dx.doi.org/10.1016/j.ra....
 
eISSN:1897-1695
ISSN:1733-8387
Journals System - logo
Scroll to top