Characterization of rare earth elements and trace elements in the rock-forming minerals of granite by INAA

HAN Song DONG Jinquan YU Fusheng JIA Xiuqing

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Characterization of rare earth elements and trace elements in the rock-forming minerals of granite by INAA

更新时间：2021-03-12

- Characterization of rare earth elements and trace elements in the rock-forming minerals of granite by INAA
- NUCLEAR TECHNIQUES Issue 6, (2005)
- 作者机构：
  
  1. 中国科学院高能物理研究所
  2. 中国科学院高能物理研究所,北京,100049
- 作者简介：
- 基金信息：
  
  中国科学院重要方向性项目-先进核分析技术在环境科学中的应用研究(KJCX-NO1)
- DOI：
  CLC： P588.121
- Published：01 June 2005
- 稿件说明：
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[1]韩松,董金泉,于福生,贾秀琴.中子活化分析花岗岩中造岩矿物的稀土和微量元素特征[J].核技术,2005(06):445-448.

HAN Song DONG Jinquan YU Fusheng JIA Xiuqing. Characterization of rare earth elements and trace elements in the rock-forming minerals of granite by INAA[J]. Nuclear techniques, 2005, (6): 445-448.
[1]韩松,董金泉,于福生,贾秀琴.中子活化分析花岗岩中造岩矿物的稀土和微量元素特征[J].核技术,2005(06):445-448. DOI：

HAN Song DONG Jinquan YU Fusheng JIA Xiuqing. Characterization of rare earth elements and trace elements in the rock-forming minerals of granite by INAA[J]. Nuclear techniques, 2005, (6): 445-448. DOI：

摘要

中子活化分析的主要特点是用量少而精度高

是研究颗粒细小、极难挑选的矿物地球化学特征非常理想的方法。采用该方法测定了江西某地花岗岩中的主要矿物钾长石、斜长石、石英、黑云母以及副矿物锆石、磷灰石等的稀土和微量元素。结果表明

从锆石、磷灰石、黑云母到斜长石、钾长石、石英的8∑REE的含量和微量元素的含量依次降低

这正是花岗岩结晶过程的反映:即先结晶出的矿物微量元素含量高。全岩的Eu异常主要受到黑云母（可能还有钾长石和斜长石）的影响。

Abstract

INAA analysis is considered as an effective method to study the geochemical features of some tiny minerals which are very difficult to be selected from rock samples. Both rare earth elements and trace elements in the rock-forming minerals of the granite from Jiangxi Province

including potash feldspar

plagioclase

quartz

biotite

accessory minerals

zircon and apatite

were analyzed and studied by INAA.Measured data show that the total 8 REE contents of minerals gradually decrease from zircon

apatite

biotite

plagioclase

potash feldspar to quartz in proper order

indicating a crystallization process of the granite. The Eu abnormal of whole rock would be affected by biotite

potash feldspar and plagioclase.

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