Hummel(改良斯伦贝谢)垂直电测深阵列在地下水勘探中的效果:以尼日利亚西南部伊巴丹市部分地区为例

IF 1 Q3 GEOCHEMISTRY & GEOPHYSICS
M. Oladunjoye, S. Jekayinfa
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引用次数: 22

摘要

该研究比较了使用常规斯伦贝谢阵列和改进的斯伦贝谢阵列获得的垂直电测深数据的解释结果,以评估改进的斯伦贝谢垂直电测深阵列作为常规斯伦贝谢阵列在地下水勘探过程中空间受限的替代方案的有效性。在尼日利亚西南部伊巴丹市的不同岩石单元中,共占据了37个测深位置,收集了100个测深数据,包括传统的斯伦贝谢和改进的斯伦贝谢阵列,电极间距从1到75米不等。采用曲线拟合和计算机迭代法对现场资料进行定性解释。通过对地下单元的统计分析和现场数据统计图的相关系数“”,揭示了不同阵列之间的关系。不同阵列的原始数据图具有显著的相似性,而对不同岩性单元的不同阵列地电参数的统计分析表明,不同的野外方法之间存在很强的相关性。相关系数在0.7 ~ 0.99之间,表明本研究中采用的不同野外方法之间存在很好的相似性。因此,改进的斯伦贝谢阵列可以说是传统斯伦贝谢阵列在地下水勘探中的一个很好的替代方案,特别是在空间限制是主要挑战的城市环境中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Efficacy of Hummel (Modified Schlumberger) Arrays of Vertical Electrical Sounding in Groundwater Exploration: Case Study of Parts of Ibadan Metropolis, Southwestern Nigeria
This research compared the interpretation results of the Vertical Electrical Sounding data acquired using the conventional Schlumberger and modified Schlumberger arrays with a view to assessing the effectiveness of the modified Schlumberger arrays of vertical electrical sounding as an alternative to the conventional Schlumberger array at sites with space constraint during groundwater exploration. A total of thirty-seven (37) sounding locations were occupied and one hundred (100) sounding data for both conventional Schlumberger and modified Schlumberger arrays were collected across different rock units within Ibadan metropolis, south-western Nigeria, with electrode spacing () ranging from 1 to 75 m. The field data were interpreted qualitatively by curve matching and computer iterative methods. Also, statistical analysis of subsurface units and the coefficient of correlation “” of the statistical plots of the field data shows the relationship between the different arrays. The raw data plot of the different arrays shows significant similarities while statistical analysis of the geo-electric parameters obtained from the different arrays across varied lithologic units show that strong relationships exist between the different field methods. The coefficient of correlation with values ranging from 0.7 to 0.99 implies that a good similarity exists between the different field methods employed in this study. Hence, modified Schlumberger arrays can be said to be a good alternative to the conventional Schlumberger array for groundwater exploration especially in urban settings where space constraint is a major challenge.
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来源期刊
International Journal of Geophysics
International Journal of Geophysics GEOCHEMISTRY & GEOPHYSICS-
CiteScore
1.50
自引率
0.00%
发文量
12
审稿时长
21 weeks
期刊介绍: International Journal of Geophysics is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles in all areas of theoretical, observational, applied, and computational geophysics.
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