光释光测年中石英样品提纯方法的改进

doi:10.11867/j.issn.1001-8166.2008.03.0284

地球科学进展 ›› 2008, Vol. 23 ›› Issue (3): 284 -289. doi: 10.11867/j.issn.1001-8166.2008.03.0284

光释光测年中石英样品提纯方法的改进

李国强 ¹，赵晖 ^1，2，范育新 ¹，彭海梅 ^1，2，陈发虎 ¹

1.兰州大学西部环境教育部重点实验室,甘肃兰州 730000;2.中国科学院寒区旱区环境与工程研究所沙漠与沙漠化重点实验室，甘肃兰州 730000

收稿日期:2007-10-19 修回日期:2008-01-30 出版日期:2008-03-10
通讯作者: 赵晖（1973-），男，山西忻州人，副研究员，主要从事释光年代学和环境演化研究. E-mail:hzhao@lzb.ac.cn
基金资助:
国家自然科学基金面上项目“阿拉善高原—黄土高原全新世重大干旱事件（侧重释光年代）研究”（编号：40401061）和“晚第四纪古兰泰湖面波动与环境变化研究”（编号：40502016）；国家自然科学基金创新群体项目（编号：40721061）资助.

Improved Method for Quartz Purification in OSL Dating

Li Guoqiang ¹，Zhao Hui ^{1, 2}，Fan Yuxin ¹，Peng Haimei ^1,2，Chen Fahu ¹

1.Key Laboratory of Western China＇s Environmental Systems （Ministry of Education） College of Earth and Environment Sciences, Lanzhou University, Lanzhou 730000,China;2. Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000,China

Received:2007-10-19 Revised:2008-01-30 Online:2008-03-10 Published:2008-03-10

下载PDF ( 1426 )

为了解决光释光前处理中遇到的传统方法无法获得满足纯度石英的问题，通过大量对比实验，结合玻璃工艺中石英分离研究成果，最后获得了新的石英提纯流程，与传统方法相比，新方法通过化学分离避免了密度变化对石英长石分离的影响，从而解决了斜长石和岩屑在传统的重液分离中无法剔除的问题，新方法能够获得满足纯度要求和量要求的石英，同时，新方法比传统方法实验室工作效率更高。

关键词: 光释光测年, 石英提纯, 十二胺浮选

In order to resolve the problem met in the pre-treatment of traditional methods for Optical stimulated luminescence (OSL) dating sample which can not obtain enough purity and quantity of quartz, a new quartz separation process in obtained, with contrast experiments, combined with the well-developed quartz purification techniques in glass production, finally a new quartz separation process is obtained. Compared with the traditional methods, the new method adopted by chemical separation to avoid the impact of density of feldspar thus resolves the problem of plagioclase feldspar and debris that can not be removed totally during the traditional methods. The new method can obtain more sufficient purity quartz and at the same time is more efficient in laboratory work.

Key words: OSL dating, Mineral separation of quartz, Laurylamine floating selection.

中图分类号:

P597
TD873.3

[1] Chen Shue，Huang Chunchang，Li Huhou，et al. Separation of quartz from loess in luminescence dating [J]. Journal of Earch Sciences and Environment，2004，26（6）：85-87.[陈淑娥，黄春长，李虎侯，等.黄土释光测年中石英的分离[J].地球科学与环境学报，2004，26（6）：85-87.]

[2] Wintle A G，Murray A S.A review of quartz optically stimulated luminescence characteristics and their relevance in single-aliquot regeneration dating protocols [J]. Radiation Measurements，2006，41:369-391.

[3] Aitkin M J. Thermoluminescence Dating [M]. London: Academic Press，1985:359. 

[4] Dai Qiang，Tang Jiaying，Cheng Zhengbing.Current studies of separating quartz from feldspar through flotation [J]. Non-metallic Mines，1996（2）:16-21.[戴强，唐甲莹，程正柄.石英—长石浮选分离的进展[J].非金属矿，1996（2）：16-21.]

[5] Liu Yachuan，Zhang Keren. Mechanism of crystallize chemistry characteristic of feldspar and quartz reaction with pharmacy [J]. China Nonferrous Metals，1992，2（4）：21-25.[刘亚川，张克仁.石英长石矿物结晶化学特性与药剂作用机理[J].中国有色金属学报，1992，2（4）：21-25.]

[6] Yu Fushun. Current studies of separating quartz from feldspar through flotation without fluoride [J]. Conservation and Utilization of Mineral Resources，2005（3）：52-54.[于福顺.石英长石无氟浮选分离工艺研究现状[J].矿产保护与利用，2005（3）：52-54.]

[7] Rao K Hanumantha，Sun Baoqi.Connection of chemical character of mixed collector and flotation separation of feldspar and quartz [J]. Metallic Dressing Abroad，1994，31（10）：36-45.[K.H.拉奥，孙宝歧.阴／阳离子混合捕收剂的溶液化学及长石与石英的浮选分离[J].国外金属矿选矿，1994，31（10）：36-45.]

[8] Wang Fenghua，Zhang Chenhui，Chen Xiaojin，et al. Rapid separating method of K-feldspar，plagioclase feldspar and quartz single mineral [J]. Mineral Resources and Geology，2000，14（4）：247-250.[王凤花，张陈辉，陈小金，等.钾长石、斜长石及石英单矿物的快速分离方法[J].矿产与地质，2000，14（4）：247-250.]

[9] Aitkin M J. An Introduction to Optical Dating [M]. Oxford University Press，1998:67.

[10] Wang Weida. China TL and ESL Dating Research [M].Beijing: China Measures Press，1997:219-252.[王维达.中国热释光与电子自旋共振测定年代研究[M].北京:中国计量出版社，1997:219-252.]

[11] Liu Yachuan，Gong Huangao，Zhang Keren. Adsorption mechanism of dodecyl amine-hydrochloride on feldspar and quartz and effect of pH [J]. China Mining Magazine，1992，（2）:89-92.[刘亚川，龚焕高，张克仁.十二胺盐酸盐在长石石英表面的吸附机理及pH值[J].中国矿业，1992，（2）:89-92.]

[12] Department of Geology of Nanjing University. Crystallography and mineralogy [M].Beijing: Geological Publishing House，1978.[南京大学地质系.结晶学与矿物学[M].北京：地质出版社，1978.]

[13] Qiu Jiaxiang. Magmatic Rocks Petrology [M]. Beijing: Geological Publishing House，1985.[邱家骧.岩浆岩岩石学[M].北京:地质出版社，1985.]

[1]	杨宏宇, 赵晖, 王兴繁, 耿建伟. 光释光测年中石英颗粒全球标准曲线法(gSGC)与单片再生法(SAR)等效剂量(D _e)的比对[J]. 地球科学进展, 2017, 32(10): 1111-1118.

阅读次数

全文

摘要