| 砂岩型铀矿勘查中航放、航磁信息开发研究 |
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| 引用本文： | 常树帅.砂岩型铀矿勘查中航放、航磁信息开发研究[J].铀矿地质,2006,22(5):300-304,310. |
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| 作者姓名： | 常树帅 |
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| 作者单位： | 核工业航测遥感中心,河北,石家庄,050002 |
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| 基金项目： | 成文中,得到核工业航测遥感中心韩长青总工程师的热情指导,在此深表谢意! |
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| 摘 要： | 本文以伊犁盆地南缘5个砂岩型铀矿床为研究对象，通过对已知铀矿床航放、航磁特征的研究，强调航放下测铀宽道Udw、上测铀窄道Uu、上测铀宽道Uuw和下测铀窄道Ud4种参数异常是砂岩型铀矿的直接指示标志；对航放信息相关性分析进行了探讨，认为航放相关性分析不适合层间氧化带砂岩型铀矿的预测，相关性分析圈定的Th、K元素负相关区带为古河道砂岩型铀矿床产出的有利部位；对弱磁异常进行了研究提取，首次提出用弱磁分布范围来圈定盖层氧化区（带）的观点；建立航放、航磁计算机预测模型，对整个盆地进行了砂岩型铀矿成矿预测，圈定远景区14片，便于进一步开展地面物探工作，继续扩大伊犁盆地的找矿成果。认为航放、航磁在可地浸砂岩型铀矿勘查中仍能发挥重要作用。
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| 关 键 词： | 下测铀宽道Udw 上测铀窄道Uu 上测铀宽道Uuw 下测铀窄道Ud 相关性分析 弱磁 计算机预测模型 |
| 文章编号： | 1000-0658（2006）05-0300-06 |
| 收稿时间： | 2005-01-06 |
| 修稿时间： | 2005-01-062006-06-29 |
Development of aeroradiometric and aeromagnetic information for the exploration of sandstone type uranium deposit |
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| CHANG Shu-shuai.Development of aeroradiometric and aeromagnetic information for the exploration of sandstone type uranium deposit[J].Uranium Geology,2006,22(5):300-304,310. |
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| Authors: | CHANG Shu-shuai |
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| Institution: | Airborne Survey and Remote Sensing Center of Nuclear Industry, Shijiazhuang, Hebei 050002, China |
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| Abstract: | Through the study of aeroradiometric and aeromagnetic characteristics of five known sandstone type uranium deposits in the southern margin of Yili basin,it is emphasized that anomalies of four parameters such as uranium wide channel in downward window(Udw),uranium narrow channel in upward window(Uu),uranium wide channel in upward window(Uuw) and uranium narrow channel in downward window(Ud)are direct indicators for sandstone type uranium deposit.According to the discussed correlation between aeroradiometric information,the author points out that aeroradiometric correlation analysis is not a suitable method for the prognosis of interlayer oxidation zone type uranium deposit,but the negative correlation areas of K and Th delineated by correlation analysis is the favorable occurrence location for paleochannel sandstone type uranium deposit.After extracting weak magnetic anomalies,it was put forward for the first time that covered oxidation zone can be delineated by the distribution range of weak magnetic anomalies.Aeroradiometric and aeromagnetic computer prognosis models was established for sandstone type uranium deposit.Metallogenetic prognosis was carried out in the whole Basin.With this model,14 pieces of prospective areas were delineated,so as to further advance ground geophysical survey,and expand prospecting achievements in the Yili basin.In a word,aeroradiometric and aeromagnetic information still play an important role in prospecting in-situ leachable sandstone type uranium deposit. |
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| Keywords: | uranium wide channel in downward window(Udw) uranium narrow channel in upward window(Uu) uranium wide channel in upward window(Uuw) uranium narrow channel in downward window(Ud) correlation analysis weak magnetic computer prognosis model |
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