干旱区生态环境知识资源中心(Arid): Constructions of standardised growth curves (SGCs) for IRSL signals from K-feldspar, plagioclase and polymineral fractions

Arid

DOI	10.1016/j.quageo.2018.05.015
	Constructions of standardised growth curves (SGCs) for IRSL signals from K-feldspar, plagioclase and polymineral fractions
	Zhang, Junjie; Li, Sheng-Hua
通讯作者	Li, Sheng-Hua
来源期刊	QUATERNARY GEOCHRONOLOGY
ISSN	1871-1014
EISSN	1878-0350
出版年	2019
卷号	49 页码:8-15
英文摘要	Standardised growth curves (SGCs) were established for extracts of potassium feldspar (K-feldspar), plagioclase and polymineral grains from various geological settings (deserts, loess, lake or fluvial deposits) from Northern China. Single-aliquot regenerative-dose (SAR) protocol was used with the measurements of multiple elevated temperature post-IR IRSL (MET-pIRIR) signals from 50 degrees C to 250 degrees C with an interval of 50 degrees C. Regenerative-dose normalisation was applied for the SGC construction. The shapes of the SGCs of K-feldspar vary between IRSL signals measured at different temperatures. For coarse grains (63-180 gm), the SGCs of the K-feldspar, plagioclase and polymineral fractions are close to each other. However, the polymineral fine grains (4-11 pm) have a distinct SGC from the coarse-grain fractions. It may be caused by the difference in alpha irradiation. Two test doses (145 Gy and 72.5 Gy) were applied to construct the SGCs for K-feldspar. The SGC built with the larger test dose has a larger characteristic saturation dose (Do). Test dose used for equivalent dose (De) measurements need to be the same as the test dose used for SGC construction, otherwise the SGC may not be estimated accurately. With the same test dose used, the D, values estimated from SGCs are identical with the Dc values generated from individual dose response curves.
英文关键词	K-feldspar Plagioclase Polymineral MET-pIRIR Standardised growth curve (SGC) Test dose
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000454376300004
WOS关键词	MET-PIRIR SIGNALS ; CHINESE LOESS ; QUARTZ GRAINS ; OSL ; PROTOCOL ; GSGC ; SEDIMENTS ; BEHAVIOR ; RANGE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218208
作者单位	Univ Hong Kong, Dept Earth Sci, Pokfulam Rd, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junjie,Li, Sheng-Hua. Constructions of standardised growth curves (SGCs) for IRSL signals from K-feldspar, plagioclase and polymineral fractions[J],2019,49:8-15.
APA	Zhang, Junjie,&Li, Sheng-Hua.(2019).Constructions of standardised growth curves (SGCs) for IRSL signals from K-feldspar, plagioclase and polymineral fractions.QUATERNARY GEOCHRONOLOGY,49,8-15.
MLA	Zhang, Junjie,et al."Constructions of standardised growth curves (SGCs) for IRSL signals from K-feldspar, plagioclase and polymineral fractions".QUATERNARY GEOCHRONOLOGY 49(2019):8-15.