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| 张家口水泉沟碱性杂岩体单颗粒锆石^207Pb／^206Pb年龄分析 | |
| 引用本文： | 梁华英 莫测辉. 张家口水泉沟碱性杂岩体单颗粒锆石^207Pb／^206Pb年龄分析[J]. 地球化学, 1998, 27(1): 59-65 |
| 作者姓名： | 梁华英 莫测辉 |
| 作者单位： | 中国科学院广州地球化学研究所!广州，510640 |
| 摘 要： | 用单颗粒锆石铅蒸发－沉积法分析张家口地区赋金水泉沟碱性杂岩体形成时代，保持封闭体系３颗锆石的＾２０７Ｐｂ／＾２０６Ｐｂ值表面年龄在１６０７－１６６７Ｍａ之间，与锆石Ｕ－Ｐｂ法上交点年龄（１７１８±６５）Ｍａ基本一致，水泉沟碱性杂岩体是１６－１７亿前形成的。 |
| 关 键 词： | 碱性岩 锆石年龄 杂岩体 单颗粒 铷207 铷206 |
SINGLE ZIRCON Pb-EVAPORATION ~(207)Pb/~(206)Pb AGE OF THE GOLD-BEARING SHUIQUANGOU ALKALINE ROCK IN ZHANGJIAKOU AREA, HEBEI PROVINCE, CHINA |
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| Liang Huaying, Mo Cehui, Wang Xiuzhang. SINGLE ZIRCON Pb-EVAPORATION ~(207)Pb/~(206)Pb AGE OF THE GOLD-BEARING SHUIQUANGOU ALKALINE ROCK IN ZHANGJIAKOU AREA, HEBEI PROVINCE, CHINA[J]. Geochimica, 1998, 27(1): 59-65 | |
| Authors: | Liang Huaying Mo Cehui Wang Xiuzhang |
| Abstract: | The forming age of the gold-bearing Shuiquangou alkaline rock was determinedwith the help of single grain zircon Pb-evaporation method. The apparent age(1607-1667Ma) of crystal zircon grain domains, where almost enclosed system exists, isconsist with that (1718Ma) obtained by the U-Pb conventional method. This suggeststhat the gold-bearing Shuiquangou alkaline rock was formed 1600-1700Ma ago. |
| Keywords: | alkaline rock zircon age Zhangjiakou |
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