| 城镇及其周边土壤重金属元素异常成因机理 |
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| 引用本文： | 马生明,朱立新,王之峰.城镇及其周边土壤重金属元素异常成因机理[J].物探化探计算技术,2007(Z1). |
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| 作者姓名： | 马生明 朱立新 王之峰 |
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| 作者单位： | 中国地质科学院地球物理地球化学勘查研究所 中国地质科学院 中国地质科学院地球物理地球化学勘查研究所 河北廊坊 中国地质科学院应用地球化学开放实验室 河北廊坊 |
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| 基金项目： | 科技部科技基础性工作和社会公益研究专项(2003DIB3J071)，地质调查项目(200220130004)资助 |
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| 摘 要： | 普遍出现在城镇及其周边地区土壤中的重金属元素异常受到广泛关注,但是目前对此类异常的生态危害还没有明确的结论,原因之一是对异常的成因机理缺乏深入研究和客观认识。这里研究结果发现,城镇周边地区的土壤重金属元素异常,与燃煤(或金属矿石选冶)过程中释放出的“微球粒“物质和黄铁矿、磁铁矿等重矿物具有成因联系,因此为确认此类异常的成因机理提供了证据,对异常的生态效应评价以及预警预测研究具有直接意义。
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| 关 键 词： | 城镇周边 重金属元素异常 成因机理 |
FORMING MECHENISM OF HEAVY METAL ANOMALIES AT TOWN AREAS AND THEIR SURROUNDINGS |
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| MA Sheng-ming,ZHU Li-xin,WANG Zhi-feng.FORMING MECHENISM OF HEAVY METAL ANOMALIES AT TOWN AREAS AND THEIR SURROUNDINGS[J].Computing Techniques For Geophysical and Geochemical Exploration,2007(Z1). |
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| Authors: | MA Sheng-ming ZHU Li-xin WANG Zhi-feng |
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| Institution: | MA Sheng-ming1,2,ZHU Li-xin3,WANG Zhi-feng1,2 |
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| Abstract: | More and more attention has been paid to heavy metal anomalies in soil in town areas and their surroundings. However, no clear conclusion has been drawn on the ecological effects induced by these anomalies at present for lacking of exact understanding of thier forming mechanism. The results of our study showed that there existed a causal relationship between heavy metal anomalies and pyrite, magnetic heavy minerals and "micro-particles" emitted in the process of coal combustion or ore dressing and smelting, so proving an undoubted evidence to confirm the forming mechanism of this type of heavy metal anomalies. And it is significant for evaluation and prediction of eco-geochemical effects of the heavy metal anomalies. |
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| Keywords: | town areas and their surroundings heavy metal anomalies forming mechanism |
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