|
|||||
|
|
| 同一岩石试样的Lu-Hf和Sm-Nd快速分离及国家岩石标准物质的Hf-Nd同位素比值精确测定 | |
| 引用本文： | 李献华,刘颖,杨岳衡,陈福坤,涂湘林,祁昌实.同一岩石试样的Lu-Hf和Sm-Nd快速分离及国家岩石标准物质的Hf-Nd同位素比值精确测定[J].岩石学报,2007,23(2):221-226. |
| 作者姓名： | 李献华 刘颖 杨岳衡 陈福坤 涂湘林 祁昌实 |
| 作者单位： | 1. 中国科学院广州地球化学研究所同位素年代学和地球化学重点实验室,广州,510640;中国科学院地质与地球物理研究所岩石圈国家重点实验室,北京,100029 2. 中国科学院广州地球化学研究所同位素年代学和地球化学重点实验室,广州,510640 3. 中国科学院地质与地球物理研究所岩石圈国家重点实验室,北京,100029;中国科学院研究生院,北京,100039 4. 中国科学院地质与地球物理研究所岩石圈国家重点实验室,北京,100029 5. 中国科学院广州地球化学研究所同位素年代学和地球化学重点实验室,广州,510640;中国科学院研究生院,北京,100039 |
| 基金项目： | 国家自然科学基金;中国科学院基金 |
| 摘 要： | 本文报道基于Li_2B_4O_7熔融样品、采用AG50W-X8和HDEHP组合或RE和HDEHP组合色谱交换柱,对同一岩石试样快速分离Sm-Nd-Lu-Hf的方法。用这两种方法对国际岩石标准BHVO-2、GSP-2和JB-1进行了Lu-Hf、Sm-Nd分离和~(143) Nd/~(144)Nd、~(176)Hf/~(177)Hf测定,并测定了BHVO-2、JB-1和JB-3的Lu/Hf和Sm/Nd比值,获得的结果在误差范围内与这些样品的参考值一致。同时,我们对国家岩石标准物质GBW07109、GBW07110和GBW07113进行了多次平行分析,首次获得了这些岩石标准的Nd-Hf同位素结果。 |
| 关 键 词： | Lu-Hf-Sm-Nd化学分离 Nd-Hf同位素比值 岩石标样 |
| 文章编号： | 1000-0569/2007/023（02）-0221-26 |
| 修稿时间： | 2006-08-15 |
Rapid separation of Lu-Hf and Sm-Nd from a single rock dissolution and precise measurement of Hf-Nd isotopic ratios for national rock standards |
|
| LI XianHu,LIU Ying,YANG Yue Heng,CHEN Fu Kun,TU Xiang Lin,QI Chang Shi.Rapid separation of Lu-Hf and Sm-Nd from a single rock dissolution and precise measurement of Hf-Nd isotopic ratios for national rock standards[J].Acta Petrologica Sinica,2007,23(2):221-226. | |
| Authors: | LI XianHu LIU Ying YANG Yue Heng CHEN Fu Kun TU Xiang Lin QI Chang Shi |
| Institution: | 1.CAS Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640;2. State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029;3.Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
| Abstract: | We present in this study an improved chemical separation method for Lu-Hf and Sm-Nd from a single rock dissolution. Rock samples were digested using Li_2B_4O_7 fusion in order to complete decomposition of refractory accessory minerals.Separation of Sm- Nd-Lu-Hf was carried out using a combination of either Dowex AG50W-X8 and HDEHP chromatographic columns or Eichrom RE and HDEHP columns.Analytical reproducibilities of Nd and Hf isotopic ratios were demonstrated for USGS rock standards BHVO-2 and GSP-2 and GSJ rock standard JB-1 and reproducibilities of Lu/Hf and Sm/Nd were demonstrated for BHVO-2,JB-1 and JB-3.Our results show overall good agreement with the recommended values.In addition,we conducted duplicated analyses on national rock standards GBW07109,GBW07110 and GBW07113,and reported for the first time their Nd and Hf isotopic ratios. |
| Keywords: | Chemical separation of Lu-Hf-Sm-Nd Nd-Hf isotopic ratio Rock standards |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《岩石学报》浏览原始摘要信息 | |
| 点击此处可从《岩石学报》下载免费的PDF全文 | |