Comparison of feldspar dating protocols for loess samples older than 70 ka from the Tianshan Mountains, arid central Asia

被引：1

作者：

Wang, Leibin ^{[1
,2
,3
]}

Chen, Shimin ^{[1
]}

Zhao, Hui ^{[3
]}

Li, Sheng-Hua ^{[4
]}

Zhang, Junjie ^{[4
]}

机构：

[1] Guangzhou Univ, Ctr Climate & Environm Changes, Sch Geog Sci, Guangzhou 510006, Guangdong, Peoples R China

[2] Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China

[3] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China

[4] Univ Hong Kong, Dept Earth Sci, Pokfulam Rd, Hong Kong, Peoples R China

来源：

QUATERNARY INTERNATIONAL | 2023年 / 652卷

关键词：

MET-pIRIR; pIR50IR290; pIR200IR290; K-feldspar; Arid central Asia; Loess; INFRARED-STIMULATED LUMINESCENCE; CHINESE LOESS; QUARTZ OSL; ILI BASIN; IRSL; SEQUENCE; DEPOSITS; CHRONOLOGY; SEDIMENTS; GRAINS;

D O I：

10.1016/j.quaint.2023.01.014

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Previous studies have demonstrated that quartz optically stimulated luminescence (OSL) dating has limitations for samples older than the last glaciation. However, infrared stimulated luminescence (IRSL) from K-feldspar can be applied beyond this limit if the problem of anomalous fading can be overcome. Elevated temperature stim-ulated IRSL signals (pIRIR) have shown great potential for minimizing the underestimation. In this study, we compared three commonly applied protocols (pIR50IR290, pIR200IR290, MET-pIRIR) for the same set of loess samples from the Tianshan Mountains in arid central Asia (ACA). For loess samples in the 70-130 ka age range (i. e., De values in the range of 200-400 Gy), pIR200IR290 and MET-pIRIR could both be used for dating, while a varying degree of underestimation occurred for the pIR50IR290 dating protocol. For samples older than 130 ka (i. e., De values in the range of 400-700 Gy), the MET-pIRIR250 signal was the most suitable.

引用

页码：41 / 51

页数：11

共 71 条

[1] Aitken M.J., 1998, INTRO OPTICAL DATING
[2] Aitken Martin J., 1985, THERMOLUMINESCENCE D
[3] Measurement of anomalous fading for feldspar IRSL using SAR
Auclair, M
Lamothe, M
Huot, S
[J]. RADIATION MEASUREMENTS, 2003, 37 (4-5) : 487 - 492
[4] Partial bleaching and the decay form characteristics of quartz OSL
Bailey, RM
Smith, BW
Rhodes, EJ
[J]. RADIATION MEASUREMENTS, 1997, 27 (02) : 123 - 136
[5] Testing the potential of an elevated temperature IRSL signal from K-feldspar
Buylaert, J. P.
Murray, A. S.
Thomsen, K. J.
Jain, M.
[J]. RADIATION MEASUREMENTS, 2009, 44 (5-6) : 560 - 565
[6] A robust feldspar luminescence dating method for Middle and Late Pleistocene sediments
Buylaert, Jan-Pieter
Jain, Mayank
Murray, Andrew S.
Thomsen, Kristina J.
Thiel, Christine
Sohbati, Reza
[J]. BOREAS, 2012, 41 (03) : 435 - 451
[7] IRSL AND POST-IR IRSL RESIDUAL DOSES RECORDED IN MODERN DUST SAMPLES FROM THE CHINESE LOESS PLATEAU
Buylaert, Jan-Pieter
Thiel, Christine
Murray, Andrew S.
Vandenberghe, Dimitri A. G.
Yi, Shuangwen
Lu, Huayu
[J]. GEOCHRONOMETRIA, 2011, 38 (04) : 432 - 440
[8] Chen P., 2009, J SCI FOOD AGR, V13, P79, DOI [10.16318/j.cnki.hbnykx.2009.06.009, DOI 10.16318/J.CNKI.HBNYKX.2009.06.009]
[9] A luminescence dating study of loess deposits from the Yili River basin in western China
ChongYi, E.
Lai, ZhongPing
Sun, YongJuan
Hou, GuangLiang
Yu, LuPeng
Wu, ChengYong
[J]. QUATERNARY GEOCHRONOLOGY, 2012, 10 : 50 - 55
[10] Loess stratigraphy of Central Asia: Palaeoclimatic and palaeoenvironmental aspects
Dodonov, AE
Baiguzina, LL
[J]. QUATERNARY SCIENCE REVIEWS, 1995, 14 (7-8) : 707 - 720

← 1 2 3 4 5 6 7 8 →