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Pt-Os同位素系统定年方法研究

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杜安道, 杨刚, 屈文俊, 陈江峰, 杨胜洪. 2005: Pt-Os同位素系统定年方法研究, 质谱学报, 26(z1): 57-58. doi: 10.3969/j.issn.1004-2997.2005.z1.029
引用本文: 杜安道, 杨刚, 屈文俊, 陈江峰, 杨胜洪. 2005: Pt-Os同位素系统定年方法研究, 质谱学报, 26(z1): 57-58. doi: 10.3969/j.issn.1004-2997.2005.z1.029
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DU An-dao, YANG Gang, QU Wen-jun, CHEN Jiang-feng, YANG Sheng-hong. 2005: Pt-Os Isotope System Dating, Journal of Chinese Mass Spectrometry Society, 26(z1): 57-58. doi: 10.3969/j.issn.1004-2997.2005.z1.029
Citation: DU An-dao, YANG Gang, QU Wen-jun, CHEN Jiang-feng, YANG Sheng-hong. 2005: Pt-Os Isotope System Dating, Journal of Chinese Mass Spectrometry Society, 26(z1): 57-58. doi: 10.3969/j.issn.1004-2997.2005.z1.029
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Pt-Os同位素系统定年方法研究

  • 国家地质实验测试中心,北京,100037

  • 国家地质实验测试中心,北京,100037;中国科学技术大学,安徽,合肥,230026

  • 中国科学技术大学,安徽,合肥,230026

Pt-Os Isotope System Dating

  • 摘要: Six massive ores in the Jinchuan deposit were dated by Re-Os technique. The Os concentrations and isotopic ratios were determined by N-TIMS, while Re and Pt concentrations were determined by ICP-MS. The samples gave an isochron age of (852±25) Ma with an initial 187Os/188Os ratio of 0.255 ± 0.014. A 7-point Pt-Os isochrone gives an age of (870±38) Ma with an initial 186Os/188Os ratio of 0.119 84±0.000 27.
    Abstract: Six massive ores in the Jinchuan deposit were dated by Re-Os technique. The Os concentrations and isotopic ratios were determined by N-TIMS, while Re and Pt concentrations were determined by ICP-MS. The samples gave an isochron age of (852±25) Ma with an initial 187Os/188Os ratio of 0.255 ± 0.014. A 7-point Pt-Os isochrone gives an age of (870±38) Ma with an initial 186Os/188Os ratio of 0.119 84±0.000 27.
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  • 刊出日期:  2005-12-30

Pt-Os同位素系统定年方法研究

  • 国家地质实验测试中心,北京,100037
  • 国家地质实验测试中心,北京,100037;中国科学技术大学,安徽,合肥,230026
  • 中国科学技术大学,安徽,合肥,230026

摘要: Six massive ores in the Jinchuan deposit were dated by Re-Os technique. The Os concentrations and isotopic ratios were determined by N-TIMS, while Re and Pt concentrations were determined by ICP-MS. The samples gave an isochron age of (852±25) Ma with an initial 187Os/188Os ratio of 0.255 ± 0.014. A 7-point Pt-Os isochrone gives an age of (870±38) Ma with an initial 186Os/188Os ratio of 0.119 84±0.000 27.

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