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	干旱区湖滨沉积物中不同粒度石英矿物等效剂量对比
其他题名	The equivalent dose comparison of different grain size quartz from lakeshore sediments in the arid region
	范育新; 赵晖; 陈发虎
发表日期	2009
ISSN	0253-3219
卷号	32 期号:2 页码:97-101
中文摘要	采用双单片再生法在4个湖滨沉积物中测量了不同粒径石英的等效剂量值.实验结果出现两种不同情况,一种是在63-400mum粒度区间,石英的De值基本一致,并随粒度增加略微减小;另一种是在125-300 mum粒度区间,石英的De值比较接近,而63-90mum、甚至90-125mum石英的De明显偏小约50%.第一种现象与文献[18]的报道是一致的,后一种现象难以用已有的研究成果进行解释.
英文摘要	To investigate the feasibility of OSL dating of lakeshore sediments, equivalent dose (D_e) values of quartz fractions in different grain-size were measured using the "Double-SAR" protocol of optical dating in four lakeshore sediments. There are two obvious different relations between D_e values and grain sizes. The first situation is that the D_e values are accordant with eath other for fractions between 63 urn and 400mum with a slightly decreasing tread of D_e values as increasing of grain-size. The second situation is that the D_e values are accordant to each other for fractions between 125 mum and 300 mum, while the D_e values of the 63-90mum and even the 90-125mum fraction are obviously smaller than others. The first is consistent with those reported elsewhere, while the second can't be understood by the previous theory.
关键词	光释光测年等效剂量不同粒径石英湖滨沉积物干旱区
英文关键词	Optical dating;Equivalent dose;Different grain-size quartz;Lakeshore sediments;Arid region
语种	中文
WOS研究方向	Geology
WOS类目	GEOLOGY ; GEOSCIENCES MULTIDISCIPLINARY
CSCD记录号	CSCD:3522573
来源期刊	核技术
来源机构	兰州大学 ; 中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/1658
推荐引用方式 GB/T 7714	范育新,赵晖,陈发虎. 干旱区湖滨沉积物中不同粒度石英矿物等效剂量对比[J]. 兰州大学, 中国科学院青藏高原研究所,2009,32(2):97-101.
APA	范育新,赵晖,&陈发虎.(2009).干旱区湖滨沉积物中不同粒度石英矿物等效剂量对比.核技术,32(2),97-101.
MLA	范育新,et al."干旱区湖滨沉积物中不同粒度石英矿物等效剂量对比".核技术 32.2(2009):97-101.