| 隐伏矿地气地球化学勘查方法的影响因素及其作用方式 |
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| 引用本文： | 张祥年,汪明启,徐广明.隐伏矿地气地球化学勘查方法的影响因素及其作用方式[J].地质调查与研究,2007,30(3):178-185. |
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| 作者姓名： | 张祥年 汪明启 徐广明 |
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| 作者单位： | 中国地质大学(北京),北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 在介绍隐伏金属矿床地气勘查方法的基础上,探讨了上覆岩石、地层、土壤、地下水和近地表大气等地质体及采样方法对揭示隐伏金属矿床的地球化学异常特征的影响,认为地气异常是多成因的,主要来自隐伏矿床所行成的纳米级物质,同时受到隐伏矿床上覆岩石、地层、土壤、地下水和近地表大气等地质要素影响。其作用方式是幔源气对隐伏矿床上覆岩体与地层造岩及微量元素的迁移,土壤固相组分对气体中矿致异常纳米物质吸附与固定及土壤反应脱有机气体,土壤对大气或污染大气对土壤的物质扩散,而地气采集装置和方法对元素含量改变也有影响。
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| 关 键 词： | 隐伏金属矿床 地气地球化学方法 地气异常 覆盖区 |
| 文章编号： | 1672-4135（2007）03-0178-08 |
| 修稿时间： | 2007-06-04 |
Distortion Reason of Geogas to Indicate Concealed Deposits and Its Reacting Mechanism |
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| ZHANG Xiang-nian,WANG Ming-qi,XU Guang-ming.Distortion Reason of Geogas to Indicate Concealed Deposits and Its Reacting Mechanism[J].Geological Survey and Research,2007,30(3):178-185. |
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| Authors: | ZHANG Xiang-nian WANG Ming-qi XU Guang-ming |
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| Institution: | China University of Geosciences(Beijing |
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| Abstract: | based on summary of the basic theory of geogas to indicate the concealed deposite,this article discusses the effect of rocks,stratum, soil,groundwater and atmosphere above the concealed deposit to the feature of geogas-elements-abnormity. It suggests that it is the result of several reasons besides nano particles,and it is effected by rocks ,stratum,soil,groundwater and atmosphere above the concealed deposit. |
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| Keywords: | Abnormity of geogas concealed deposit concealed tetonic geogas survey |
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