| 海绿石 K-Ar、40Ar/39Ar 年代学研究 |
| |
| 关键词:glauconite expandable layer K-Ar method 40Ar/39Ar method corrected formula |
| 基金项目: |
|
| 摘要点击次数: 4288 |
| 全文下载次数: 4832 |
| 摘要: |
| The corrections for the conventional K-Ar and 40Ar/39Ar dating of the glauconite |
| Glauconite is a kind of K-rich authigenic phyllo silica minerals.Its conventional K-Ar and 40Ar/39Ar data are usually untruthful.These discrepancies are attribute to ,in this paper,the expandable layers in the glauconite,which have no ability of retaining Ar.A method is describled for making quantitative corrections thrugh measuring the expandable layer's proportion and the lost rate of 39Ar.The corrected dating formulas which have been verified reliable are also deduced. |
| LI Ming-rong,WANG Song-shan,QIU Ji.1994.The corrections for the conventional K-Ar and 40Ar/39Ar dating of the glauconite[J].Acta Geoscientica Sinica,15(1,2):218-225. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
|