| 粤北始兴地区石英脉型钨矿成矿时代的确定及其地质意义 |
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| 引用本文： | 付建明,李华芹,屈文俊,马丽艳,杨晓君,魏君奇,刘国庆.粤北始兴地区石英脉型钨矿成矿时代的确定及其地质意义[J].大地构造与成矿学,2008,32(1):57-62. |
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| 作者姓名： | 付建明 李华芹 屈文俊 马丽艳 杨晓君 魏君奇 刘国庆 |
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| 作者单位： | 1. 宜昌地质矿产研究所,湖北,宜昌,443003
2. 国家地质实验测试中心,北京,100037 |
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| 基金项目： | 中国地质调查局科研项目 |
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| 摘 要： | 粤北始兴地区钨矿的主体为石英脉型。通过对含矿石英脉中辉钼矿Re-Os同位素测定,获得等时线年龄及模式年龄的加权平均值分别为:师姑山钨铋矿(154.2±2.7)Ma(MSWD=0.29)和(154.0±2.0)Ma(MSWD=0.047);石人嶂钨矿(159.1±2.2)Ma(MSWD=3.9)和(157.6±1.6)Ma(MSWD=0.62)。结果表明它们为南岭地区中生代大规模成岩成矿作用高峰期的产物。这为进一步研究区域成矿规律,指导区域找矿提供了重要同位素年代学依据。
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| 关 键 词： | 石英脉型钨矿床 辉钼矿Re-Os定年 始兴 粤北 |
| 文章编号： | 1001-1552（2008）01-0057-06 |
| 收稿时间： | 2007-05-31 |
| 修稿时间： | 2007-08-04 |
DETERMINATION OF MINERALIZATION EPOCH OF QUARTZ-VEIN TYPE TUNGSTEN DEPOSITS IN SHIXING REGION, NORTHERN GUANGDONG AND ITS GEOLOGICAL SIGNIFICANCE |
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| FU Jianming,LI Huaqin,QU Wenjun,MA Liyan,YANG Xiaojun,WEI Junqi,LIU Guoqing.DETERMINATION OF MINERALIZATION EPOCH OF QUARTZ-VEIN TYPE TUNGSTEN DEPOSITS IN SHIXING REGION, NORTHERN GUANGDONG AND ITS GEOLOGICAL SIGNIFICANCE[J].Geotectonica et Metallogenia,2008,32(1):57-62. |
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| Authors: | FU Jianming LI Huaqin QU Wenjun MA Liyan YANG Xiaojun WEI Junqi LIU Guoqing |
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| Abstract: | The tungsten deposits in the Shixing region,northern Guangdong Province,are composed mainly of quartz-vein type ones.Based on the precise Re-Os dating of the molybdenites from the ore-hosted quartz vein,we obtained the ore-forming ages of 154.2±2.7 Ma(MSWD=0.29)for the Shigushan tungsten-bismuth deposit and 159.1±2.2Ma(MSWD=3.9)for the Shirenzhang tungsten deposit.It suggested that the deposits were the products of the peak time of Mesozoic large-scale mineralization in the Nanling region,South China.Our new data provide an important isotope chronological evidence for further study of the regional mineralization regularities and the guidance of regional prospecting. |
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| Keywords: | quartz-vein type tungsten deposit molybdenite Re-Os dating Shixing northern Guangdong Province |
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