| 钐钕分离的化学方法及其在同位素地质年龄中的应用 |
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| 引用本文： | 郭起凤.钐钕分离的化学方法及其在同位素地质年龄中的应用[J].铀矿地质,1990,6(1):54-58. |
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| 作者姓名： | 郭起凤 |
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| 摘 要： | 本文主要介绍了分离Sm-Nd的3种化学方法,其中有适合分离高含量Sm,Nd的了酮-疏氰酸铵纸色层法;适合分离一般含量Sm,Nd的P_(204)柱色层法;适合低含量Sm,Nd的加压离子交换法。同时介绍应用Sm-Nd法得出的我国第一条Sm-Nd等时线,测出了冀东早太古代岩石Sm-Nd同位素地质年龄。
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| 关 键 词： | 化学法分离sm Nd sm-Nd等时线 sm-Nd同位素地质年龄 |
CHEMICAL METHODS FOR Sm-Nd SEPARATION AND ITS APPLICATION IN ISOTOPIC GEOLOGICAL DATING |
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| Guo Qifeng.CHEMICAL METHODS FOR Sm-Nd SEPARATION AND ITS APPLICATION IN ISOTOPIC GEOLOGICAL DATING[J].Uranium Geology,1990,6(1):54-58. |
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| Authors: | Guo Qifeng |
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| Abstract: | This paper mainly describes three chemical methods for Sm-Nd separation: low chromatography of butamone-ammonium thiocyanate for high concentration Sm and Nd separation, P_(240) column chromatography for medium concentration Sm-Nd separation, and pressure ion exchange for low concentration Sm-Nd. The first Sm-Nd synchrone obtained in China with Sm-Nd methods is introduced and Sm-Nd isotopic geological dating in Early Archaean rocks in eastern Hebei has been determined. |
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| Keywords: | Chemical method for Sm-Nd separation Sm-Nd synchrone Sm-Nd isotopic geological dating |
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