| Ultra-violet laser probe measurement of ^40Ar／^39Ar age profile in phlogopite |
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| 引用本文： | HEHuaiyu WANGFei SANGHaiqing WANGYinglan BovenAriel ZHURixiang. Ultra-violet laser probe measurement of ^40Ar／^39Ar age profile in phlogopite[J]. 科学通报(英文版), 2004, 49(18): 1949-1952. DOI: 10.1007/BF03184287 |
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| 作者姓名： | HEHuaiyu WANGFei SANGHaiqing WANGYinglan BovenAriel ZHURixiang |
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| 作者单位： | [1]nstituteofGeologyandGeophysics,ChineseAcademyofSciences,Beijing100029,China [2]LaboratoryofGeochronology,VrijeUniversiteitBrussel,Pleinlaan2,1050Brussels,Belgium |
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| 摘 要： | Ultra-Violet Laser Ablation Microprobe (UVLAMP) extraction technique enables the direct investigation of Ar-Ar age prorde in crystals, and yields more information on rates and durations of geological process than conventional single time snapshots. Phlogopite flakes from lamprophyre at Pishan dyke in western Kunlun were dated by using an UV laser (λ= 213 nm) microprobe with spot analyses. The results show good agreement with those from the conventional ^40Ar/^39Ar step heating experiments. This indicates that the Ar isotopes are distributed homogenously in the phlogopite and the UVLAMP can be a powerful tool in the study of thermal history.
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| 关 键 词： | 激光探针 测量 ^40Ar／^39Ar 金云母 煌斑岩 |
| 收稿时间： | 2004-04-26 |
| 修稿时间： | 2004-06-21 |
Ultra-violet laser probe measurement of40Ar/39Ar age profile in phlogopite |
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| He,Huaiyu,Wang,Fei,Sang,Haiqing,Wang,Yinglan,Boven,Ariel,Zhu,Rixiang. Ultra-violet laser probe measurement of40Ar/39Ar age profile in phlogopite[J]. Chinese science bulletin, 2004, 49(18): 1949-1952. DOI: 10.1007/BF03184287 |
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| Authors: | He Huaiyu Wang Fei Sang Haiqing Wang Yinglan Boven Ariel Zhu Rixiang |
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| Affiliation: | e-mail: huaiyuhe@ mail.igcas.ac.cn |
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| Abstract: | Ultra-Violet Laser Ablation Microprobe (UV-LAMP) extraction technique enables the direct investigation of Ar-Ar age profile in crystals, and yields more information on rates and durations of geological process than conven-tional single time snapshots. Phlogopite flakes from lampro-phyre at Pishan dyke in western Kunlun were dated by using an UV laser (l = 213 nm) microprobe with spot analyses. The results show good agreement with those from the conven-tional 40Ar/39Ar step heating experiments. This indicates that the Ar isotopes are distributed homogenously in the phlogopite and the UVLAMP can be a powerful tool in the study of thermal history. |
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| Keywords: | laser probe lamprophyre phlogopite 40Ar/39Ar. |
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