甘孜黄土细颗粒石英热转移光释光(TT-OSL)法测年可行性初探

张克旗

甘孜黄土细颗粒石英热转移光释光(TT-OSL)法测年可行性初探

张克旗

中国地质科学院地质力学研究所, 北京 100081

基金项目:

中国地质调查局地质调查项目 1212011120163

中国地质科学院地质力学研究所基本科研业务费项目 DZLXJK201202

详细信息

作者简介:
张克旗(1973-), 男, 助理研究员, 主要从事第四纪地质与环境及释光测年研究。E-mail:zhkeqi@163.com

中图分类号: P597
计量
- 文章访问数: 181
- HTML全文浏览量: 69
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2013-04-02
- 刊出日期: 2013-09-28

A PRELIMINARY DISCUSSION ON FEASIBILITY USING THERMALLY TRANSFERRED OPTICALLY STIMULATED LUMINESCENCE (TT-OSL) METHOD TO DATE THE FINE-GRAIN QUARTZ EXTRACTED FROM GANZI LOESS

ZHANG Ke-qi

Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China

摘要

摘要: 使用一种新的光释光测年法——热转移光释光（TT-OSL）法对甘孜县城附近的甘孜-A剖面上的黄土细颗粒石英进行实验测试，以探讨该方法用于其测年的可行性。实验测试结果表明，样品的天然回授OSL（ReOSL）信号强度随地层深度增加而增大，表现出明显的积累。利用“替换点”分析方式对TT-OSL法的检验表明该方法能够用于甘孜黄土的测年。采用简单多片法（SMAR）和TT-OSL法分别对3个样品进行等效剂量（D_e）测试及年龄计算，结果显示TT-OSL法得到的D_e值及年龄明显大于简单多片法，但TT-OSL法年龄与前人磁性地层研究中的期望年龄相差比较大。研究初步认为，TT-OSL法可以对甘孜黄土进行测年，但是结果的可靠性还需要有更多的可信独立年龄验证。
- OSL测年 /
- 甘孜黄土 /
- 细颗粒石英 /
- TT-OSL法 /
- SMAR法
Abstract: This paper attempts to date the loess from Ganzi area, Sichuan province, using a new method-TT-OSL protocol for OSL dating. A preliminary experimental study was conducted loess from the Ganzi-A section. Testing result showed that the naturally recuperated OSL signal intensity increases with depth of stratum, being obvious accumulation. A 'replacement plot' analysis was applied to test the reliability of the TT-OSL protocol and showed a nice result. The D_e values of 3 samples were measured by SMAR and TT-OSL protocols, respectively, and ages were calculated. The comparison between D_e-TTOSL and D_e-SMAR show the former was greater than that of the latter, and comparison between the ages is as well. However the ages of TT-OSL method is less than the expected value from magnetostratigraphy. Based on the results, the TT-OSL method was applied to fine-grained quartz extracted from the Ganzi loess. But the reliability of results from TT-OSL dating needed to be tested and verified by more independent ages.
- OSL dating /
- Ganzi loess /
- fine-grain quartz /
- TT-OSL protocol /
- SMAR protocol

HTML全文

图 1 不同埋深样品的第一秒天然ReOSL信号强度

Figure 1. Natural ReOSL signal intensity of the samples with different depths at the first second

下载: 全尺寸图片幻灯片

图 2 3个样品的TT-OSL再生剂量生长曲线

Figure 2. TT-OSL regenerated dose growth curves of the three samples

下载: 全尺寸图片幻灯片

图 3 “替换点”分析法简单示意图

Figure 3. Aschematic representation of the procedure used for the 'replacement plot' analysis

下载: 全尺寸图片幻灯片

图 4 “替换点”分析法计算结果

Figure 4. Results of the 'replacement plot' analysis

下载: 全尺寸图片幻灯片

表 1 TT-OSL法测量流程

Table 1. TT-OSL protocol process

表 2 三个样品SMAR法和TT-OSL法D_e值及环境剂量率和年龄

Table 2. De values and ages of SMAR and TT-OSL protocols for the three samples

参考文献(19)

[1]	蒋复初, 吴锡浩, 肖华国, 等.川西高原甘孜黄土地层学[J].地球学报, 1997, 18(4):413~420. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXB704.011.htm JIANG Fu-chu, WU Xi-hao, XIAO Hua-guo, et al. The Ganzi loess stratigraphy in the west Sichuan Plateau[J]. Acta Geoscientia Sinica, 1997, 18(4):413~420. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXB704.011.htm
[2]	潘保田, 王建民.末次间冰期以来青藏高原东部季风演化的黄土沉积记录[J].第四纪研究, 1999, (4):330~335. http://www.cnki.com.cn/Article/CJFDTOTAL-DSJJ199904004.htm PAN Bao-tian, WANG Jian-min. Loess record of Qinghai-Xizang Plateau monsoon variations in the eastern part of the plateau since the last interglacial[J]. Quaternary Sciences, 1999, (4):330~335. http://www.cnki.com.cn/Article/CJFDTOTAL-DSJJ199904004.htm
[3]	颜茂都, 方小敏, 陈诗越, 等.青藏高原更新世黄土磁化率和磁性地层与高原重大气候变化事件[J].中国科学:D辑, 2001, 31(增刊):182~186. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK2001S1027.htm YAN Mao-du, FANG Xiao-min, CHEN Shi-yue, et al. Pleistocene magnetic susceptibility and paleomagnetism of the Tibetan loess and its implication on large climatic change events[J]. Science in China:SeriesD, 2001, 44(Supp.):227~232. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK2001S1027.htm
[4]	陈诗越, 方小敏, 王苏民.川西高原甘孜黄土与印度季风演化关系[J].海洋地质与第四纪地质, 2002, 22(3):41~46. http://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200203007.htm CHEN Shi-yue, FANG Xiao-min, WANG Su-min. Relation between the loess stratigraphy on the eastern Tibetan Plateau and Indian monsoon[J]. Marine Geology & Quaternary Geology, 2002, 22(3):41~46. http://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200203007.htm
[5]	陈富斌, 高生怀, 陈继良, 等.甘孜黄土剖面磁性地层初步研究[J].科学通报, 1990, 35(20):1600. http://www.cnki.com.cn/Article/CJFDTOTAL-KXTB199020026.htm CHEN Fu-bin, GAO Sheng-huai, CHEN Ji-liang, et al. A preliminary study on Ganzi loess magnetostratigraphy[J]. Chinese Science Bulletin, 1990, 35(20):1600. http://www.cnki.com.cn/Article/CJFDTOTAL-KXTB199020026.htm
[6]	方小敏, 陈富斌, 施雅风, 等.甘孜黄土与青藏高原冰冻圈演化[J].科学通报, 1996, 41(20):1865~1867. doi: 10.3321/j.issn:0023-074X.1996.20.013 FANG Xiao-min, CHEN Fu-bin, SHI Ya-feng, et al. Ganzi loess and maximum glaciation on the Qinghai-Xizang (Tibetan) Plateau[J]. Chinese Science Bulletin, 1996, 41(20):1865~1867. doi: 10.3321/j.issn:0023-074X.1996.20.013
[7]	乔彦松, 赵志中, 王燕, 等.川西甘孜黄土磁性地层学研究及其古气候意义[J].第四纪研究, 2006, 26(2):250~256. http://www.cnki.com.cn/Article/CJFDTOTAL-DSJJ200602012.htm QIAO Yan-song, ZHAO Zhi-zhong, WANG Yan, et al. Magnetostratigraphy and its paleoclmatic significance of a loess-soil sequence from Ganzi Area, West Sichuan Plateau[J]. Quaternary Sciences, 2006, 26(2):250~256. http://www.cnki.com.cn/Article/CJFDTOTAL-DSJJ200602012.htm
[8]	乔彦松, 刘冬雁, 李朝柱, 等.川西甘孜黄土的磁性地层学研究[J].地质力学学报, 2007, 13(4):289~295. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?file_no=20070438&flag=1 QIAO Yan-song, LIU Dong-yan, LI Chao-zhu, et al. Magnetostratigraphy of a loess-soil sequence in the Garze area, western Sichuan[J]. Journal of Geomechanics, 2007, 13(4):289~295. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?file_no=20070438&flag=1
[9]	张克旗.甘孜黄土细颗粒石英光释光测年初步研究[J].核技术, 2012, 35(12):916~922. http://www.cnki.com.cn/Article/CJFDTOTAL-HJSU201212007.htm ZHANG Ke-qi. A preliminary discussion on measurements of SMAR equivalent dose of fine-grain quartz extracted from Ganzi loess[J]. Nuclear Techniques, 2012, 35(12):916~922. http://www.cnki.com.cn/Article/CJFDTOTAL-HJSU201212007.htm
[10]	王旭龙. 中国黄土释光测年研究-新方法和新技术[D]. 西安: 中国科学院地球环境研究所, 2005. WANG Xulong. Studies on luminescence dating of Chinese loess:New methods and protocols[D]. Xi'an:Institute of Earth Environment, Chinese Academy of Sciences, 2005.
[11]	王旭龙, 卢演俦, 李晓妮.细颗粒石英光释光测年:简单多片再生法[J].地震地质, 2005, 27(4):615~622. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ200504011.htm WANG Xu-long, LU Yan-chou, LI Xiao-ni. Luminescence dating of fine-grained quartz in Chinese loess:Simplified Multiple Aliquot Regenerative-dose (MAR) protocol[J]. Seismology and Geology, 2005, 27(4):615~622. http://www.cnki.com.cn/Article/CJFDTOTAL-DZDZ200504011.htm
[12]	Lu Y C, Wang X L, Wintle A G. A new OSL chronology for dust accumulation in the last 130, 000 yr for the Chinese Loess Plateau[J]. Quaternary Research, 2007, 67:152~160. doi: 10.1016/j.yqres.2006.08.003
[13]	Wang X L, Wintle A G, Lu Y C. Thermally transferred luminescence in fine-grained quartz from Chinese loess:Basic observations[J]. Radiation Measurements, 2006, 41:649~658. doi: 10.1016/j.radmeas.2006.01.001
[14]	Wang X L, Lu Y C, Wintle A G. Recuperated OSL dating of fine-grained quartz in Chinese loess[J]. Quaternary Geochronology, 2006, 1:89~100. doi: 10.1016/j.quageo.2006.05.020
[15]	Aitken M J. Thermoluminescence dating[M]. London:Academic Press, 1985:227~228.
[16]	Aitken M J. An introduction to optical dating[M]. London:Oxford University Press, 1998.
[17]	LU Yan-chou, ZHANG Jing-zhao, XIE Jun. Thermoluminescence dating of loess and paleosols from the Lantian section, Shaanxi Province, China[J]. Quaternary Science Reviews, 1988, 7:245~250. doi: 10.1016/0277-3791(88)90011-X
[18]	王旭龙, 卢演俦, 李晓妮.红外固体二极管点阵在释光测年中的光照应用[J].海洋地质与第四纪地质, 2004.24:133~138. http://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200401019.htm WANG Xu-long, LU Yan-chou, LI Xiao-ni. Red led and its application to luminescence lighting[J]. Marine Geology and Quaternary Geology, 2004, 24:133~138. http://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200401019.htm
[19]	Bailey R M, Paper I. The use of measurement-time dependent single-aliquot equivalent-dose estimates from quartz in the identification of incomplete signal resetting[J]. Radiation Measurements, 2003, 37:673~683. doi: 10.1016/S1350-4487(03)00078-7