Comparison of Equivalent Doses Obtained with Various post-IR IRSL Dating Protocols of K-Feldspar
文献类型：期刊论文
| 作者 | Zhang, Junjie6; Li, Sheng-Hua6; Wang, Xulong5; Hao, Qingzhen2,3,4; Hu, Guiming6; Chen, Yiwei1 |
| 刊名 | GEOCHRONOMETRIA
 |
| 出版日期 | 2021 |
| 卷号 | 48期号:1页码:129-137 |
| ISSN号 | 1897-1695 |
| 关键词 | Chinese loess Potassium feldspar pIRIR protocols age underestimations |
| DOI | 10.2478/geochr-2020-0010 |
| 通讯作者 | Li, Sheng-Hua(shli@hku.hk) |
| 英文摘要 | Five dating protocols with post-infrared infrared (IR) stimulated luminescence signals (i.e. pIRIR) were performed on the K-feldspar of loess samples. Two of them were the single-aliquot regenerative-dose protocol (SAR) with two-step pIRIR stimulation, with the first IR stimulation at 50 degrees C or 200 degrees C and the second at 290 degrees C (pIR(50)IR(290), pIR(200)IR(290)). Two of them were the SAR protocols with five-step or six-step IR stimulation at multiple elevated temperatures to 250 degrees C or 300 degrees C (MET-pIRIR(250), MET-pIRIR(300)). The final one was the multiple-aliquot regenerative-dose (MAR) protocol with the MET-pIRIR(300) signal, together with a 500 degrees C heat treatment administered before the test dose ('MAR with heat'). The results show that when the equivalent dose (D-e) of the sample was less than 500 Gy, all of the protocols gave consistent results; however, when D-e exceeded 750 Gy, all of the SAR protocols underestimated D-e. The pIR(50)IR(290) signal had the highest degree of underestimation, while the pIR(200)IR(290), MET-pIRIR(250) and MET-pIRIR(300) signals had similar D-e values and similar degrees of underestimation. Possible reasons for the SAR D-e underestimation are discussed. We suggest that only the 'MAR with heat' protocol is suitable for samples with D-e exceeding 750 Gy. |
| WOS关键词 | INFRARED-STIMULATED LUMINESCENCE ; GROWTH CURVE GSGC ; MET-PIRIR SIGNALS ; SENSITIVITY CHANGE ; CHINESE LOESS ; QUARTZ ; SEDIMENTS ; RATES |
| 资助项目 | Research Grant Council of the Hong Kong SAR, China[17303014] ; Research Grant Council of the Hong Kong SAR, China[17307117] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | SCIENDO |
| WOS记录号 | WOS:000741324800002 |
| 资助机构 | Research Grant Council of the Hong Kong SAR, China |
| 源URL | [http://ir.ieecas.cn/handle/361006/17379]  |
| 专题 | 中国科学院地球环境研究所 |
| 通讯作者 | Li, Sheng-Hua |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 6.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Junjie,Li, Sheng-Hua,Wang, Xulong,et al. Comparison of Equivalent Doses Obtained with Various post-IR IRSL Dating Protocols of K-Feldspar[J]. GEOCHRONOMETRIA,2021,48(1):129-137. |
| APA | Zhang, Junjie,Li, Sheng-Hua,Wang, Xulong,Hao, Qingzhen,Hu, Guiming,&Chen, Yiwei.(2021).Comparison of Equivalent Doses Obtained with Various post-IR IRSL Dating Protocols of K-Feldspar.GEOCHRONOMETRIA,48(1),129-137. |
| MLA | Zhang, Junjie,et al."Comparison of Equivalent Doses Obtained with Various post-IR IRSL Dating Protocols of K-Feldspar".GEOCHRONOMETRIA 48.1(2021):129-137. |
入库方式： OAI收割
来源：地球环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。