| 中国南方地区碲地球化学特征 |
| |
| 引用本文： | 程志中 谢学锦 潘含江 杨 榕. 中国南方地区碲地球化学特征[J]. 中国地质, 2012, 39(2): 295-301 |
| |
| 作者姓名： | 程志中 谢学锦 潘含江 杨 榕 |
| |
| 作者单位： | 1. 中国地质科学院地球物理地球化学勘查研究所,廊坊,065000
2. 中国地质科学院地球物理地球化学勘查研究所,廊坊065000;中国地质大学(北京),北京100083 |
| |
| 基金项目： | 国土资源部“百人计划”第六批资助项目“中国南方地区稀有分散元素及贵金属元素地球化学特征与成矿预测”资助 |
| |
| 摘 要： | 改进碲的分析测试方法,将碲的分析检出限降到0.005μg.g-1,从而能准确地测试土壤、水系沉积物和岩石等介质中微量Te。笔者从全国区域化探扫面副样库中,按每1∶50 000图幅1个组合样的密度,组合成5 244件样品,分析其中Te等元素的含量,绘制了中国南方地区Te地球化学图。从区域地球化学异常结合区域地质背景分析,中国南方地区的滇东和桂西地区发育的规模巨大的Te地球化学异常与该地区大面积出露的灰岩区土壤次生富集密切相关,灰岩上方土壤中Te的含量高于其他岩石上访土壤;郴州、韶关、香格里拉、大冶、铜陵等Te异常与该地区发育的铜多金属矿有关。
|
| 关 键 词： | 碲 地球化学异常 碲丰度 |
Geological characteristics of Te anomalies in South China |
| |
| CHENG Zhi-zhong,XIE Xue-jing,PAN Han-jiang,YANG Rong. Geological characteristics of Te anomalies in South China[J]. Geology in China, 2012, 39(2): 295-301 |
| |
| Authors: | CHENG Zhi-zhong XIE Xue-jing PAN Han-jiang YANG Rong |
| |
| Affiliation: | 1,2 (1.Institute of Geophysical and Geochemical Exploration,Langfang 065000,Hebei,China;2.China University of Geosciences,Beijing 100083,China) |
| |
| Abstract: | To improve the analytical methods of Te by ICPMS,the authors made the detection limit of Te down to 0.005μg.g-1.For the South China regional geochemical mapping program,about 100 RGNR samples from each 1 ∶50 000 map sheet were combined into a single sample.The resulting 5 244 composite samples were subsequently determined by ICPMS.3 giant and 2 regional Te geochemical anomalies were delineated in South China.Te anomalies in east Yunnan and west Guangxi are related to the distribution of limestone.Te anomalies in Chenzhou of Hunan Province,Shaoguan of Guangdong Province,Xianggelila of Yunnan Province,Daye of Hubei Province and Tongling of Anhui Province are related to copper polymetallic deposits. |
| |
| Keywords: | tellurium geochemical anomaly abundance |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《中国地质》浏览原始摘要信息 |
|
点击此处可从《中国地质》下载免费的PDF全文 |
|
