Arid
DOI10.1016/j.quageo.2007.08.001
Testing the applicability of a standardized growth curve (SGC) for quartz OSL dating: Kalahari dunes, South African coastal dunes and Florida dune cordons
Telfer, M. W.1; Bateman, M. D.2; Carr, A. S.3; Chase, B. M.1
通讯作者Telfer, M. W.
来源期刊QUATERNARY GEOCHRONOLOGY
ISSN1871-1014
出版年2008
卷号3期号:1-2页码:137-142
英文摘要

Standardized growth curves (SGCs) have recently been developed as a means to reduce measurement times when determining palaeodoses in the standardized luminescence (OSL) dating of quartz, but this approach is not without its critics. We test the performance of SGCs derived from samples from a range of environments in southern Africa and Florida (United States of America). Data presented here suggest that the method performed well when determining low (< 50 Gy) equivalent dose (D-c) values from samples with different geological provenances within South Africa. However, the application of an SGC built from South African data performed poorly when used to estimate the palaeodoses of samples from Florida, with seven out of ten samples failing to replicate the single aliquot regenerative (SAR)-derived D-e value to within +/- 10%. We thus advocate the use only of regionally based SGCs for full D-e determination, although SGCs can also be utilized as a way of quickly generating SAR ’range finders’ irrespective of sample origin. Furthermore, one sample from the Florida site did not show regenerative growth in accordance with any samples from either the South Africa or Florida data, resulting in significant D-e underestimation when using the SGC. Although the reasons for such behaviour are not yet understood, this re-iterates the recommendation of Burbidge et al. [2006. D-c determination for young samples using the standardised OSL response of coarse-grain quartz. Radiation Measurements 41(3), 278], to incorporate a single regenerative step in SGC protocols in order to check consistency. (C) 2007 Elsevier Ltd. All rights reserved.


英文关键词luminescence dating OSL standardized growth curve Kalahari desert
类型Article
语种英语
国家England
收录类别SCI-E
WOS记录号WOS:000252611400010
WOS关键词REGENERATIVE-DOSE PROTOCOL ; ALIQUOT ; ACCUMULATION ; RECORD
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
来源机构University of Oxford
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/158947
作者单位1.Univ Oxford, OUCE, Sch Geog, Oxford OX1 3QY, England;
2.Univ Sheffield, Dept Geog, Sheffield Ctr Int Drylands Res, Sheffield S10 2TN, S Yorkshire, England;
3.Univ Leicester, Dept Geog, Leicester LE1 7RH, Leics, England
推荐引用方式
GB/T 7714
Telfer, M. W.,Bateman, M. D.,Carr, A. S.,et al. Testing the applicability of a standardized growth curve (SGC) for quartz OSL dating: Kalahari dunes, South African coastal dunes and Florida dune cordons[J]. University of Oxford,2008,3(1-2):137-142.
APA Telfer, M. W.,Bateman, M. D.,Carr, A. S.,&Chase, B. M..(2008).Testing the applicability of a standardized growth curve (SGC) for quartz OSL dating: Kalahari dunes, South African coastal dunes and Florida dune cordons.QUATERNARY GEOCHRONOLOGY,3(1-2),137-142.
MLA Telfer, M. W.,et al."Testing the applicability of a standardized growth curve (SGC) for quartz OSL dating: Kalahari dunes, South African coastal dunes and Florida dune cordons".QUATERNARY GEOCHRONOLOGY 3.1-2(2008):137-142.
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