| 王小冬.华南花岗岩型铀矿γ测井解译方法
的应用研究[J].地质与勘探,2020,56(4):759-765 |
| 华南花岗岩型铀矿γ测井解译方法
的应用研究 |
| Methodology on γ logging interpretation of granite-type uranium ore in South China |
| 投稿时间：2019-11-04 修订日期：2020-02-14 |
| DOI：10.12134/j.dzykt.2020.04.008 |
| 中文关键词: γ测井 花岗岩型铀矿 反褶积分层解译法 平均含量法 特征参数α |
| 英文关键词: γ logging, granite-type uranium deposit, deconvolution integral layer interpretation, average content method, characteristic parameter alpha |
| 基金项目:中国核工业地质局“广东省诸广山南部地区铀矿勘查”（编号：201639）和“广东省下庄及邻
区铀矿资源评价与勘查”（编号：201640）项目联合资助 |
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| 中文摘要: |
| 本文以我国华南典型花岗岩型铀矿床-棉花坑（302）铀矿床的γ测井资料为对象开展γ测井解译方法的研究。成果表明：特征参数α是三点式反褶积分层解释法合理解译铀矿层厚度及其含量的关键因素；当铀矿层厚度较大、铀品位较高时，三点式反褶积分层解释法和平均含量法对矿体厚度及其铀含量解释结果接近；三点式反褶积分层解译法解译矿段厚度具有截距误差，解译铀含量可能出现零值或负值；三点式反褶积分层解译法在矿体（矿段）薄、铀含量低、矿体厚度变化大、铀含量变化大的情况下解译华南花岗岩型铀矿需考虑邻近岩矿石产生的γ射线影响。 |
| 英文摘要: |
| Taking the Mianhuakeng (302) uranium deposit, a typical granite type uranium deposit in South China, as an example, this paper addresses the methodology on interpretation of γ logging data. The research results by the three-point deconvolution method show that the characteristic parameter alpha is the key factor for the interpretation of the thickness and content of the uranium deposit in the three-point deconvolution method. This method is close to the average content method in the interpretation of the thickness and content of the ore body of the uranium deposit with large thickness and high grade. There are intercept errors in the interpretation of ore section thickness, and zero or negative values may appear in the interpretation of uranium content in the three-point deconvolution method. In the case that the ore body (section) is thin, the uranium content is low, the thickness of the ore body varies greatly and the uranium content varies greatly, the interpretation of by the three-point deconvolution method on the granite-type uranium ore in South China needs to take into account the gamma-ray effect of adjacent rock and ore. |
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