用反斜率法研究Adamawa-Cameroon含水层的水力特性

IF 1.6 Q3 WATER RESOURCES Water Practice and Technology Pub Date : 2023-03-09 DOI:10.2166/wpt.2023.033
J. Asfahani, Z. Aretouyap, N. George
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引用次数: 2

摘要

在喀麦隆阿达马瓦地区进行了50次垂直电测深。利用逆斜率法(ISM)和曲线拟合法进行解释。其目的是利用ISM的适用性和适宜性来破译泛非含水层地下水和水文地球物理目的的垂直电测深数据。ISM可用于解释任何电极阵列采集的VES数据。ISM地电解释得到的结果与用于约束解释的现有岩性测井相吻合。该方法获得的电阻率值范围为20 ~ 900 Ω m,平均值为241 Ω m,标准差为228 Ω m。含水层厚度范围为2 ~ 90 m,平均值为33 m,标准差为21 m。利用ISM和插值技术的综合方案,对中非Adamawa地区泛非含水层的电阻率、厚度和深度进行了测定和表征。因此,在全世界类似的泛非背景下,可以推荐ISM来解释地壳运动测量。
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Hydraulic characterization of the Adamawa-Cameroon aquifer using inverse slope method
Fifty vertical electrical soundings were carried out in the Adamawa region of Cameroon. The interpretation was done using inverse slope method (ISM) and curve matching methods. The aim was to employ the applicability and suitability of the ISM in deciphering the vertical electrical sounding (VES) data for groundwater and hydrogeophysical purposes in the Pan-African aquifers. The ISM can be used to interpret VES data collected with any electrodes array. The results obtained by the ISM geo-electrical interpretation correlate/agree well with the available lithological logs used in constraining the interpretation. The resistivity values obtained through this method are in the range of 20–900 Ω m with a mean of 241 Ω m and a standard deviation of 228 Ω m. The aquifer thickness is in the range of 2–90 m, with an average of 33 m and a standard deviation of 21 m. Resistivity, thickness and depth of the Pan-African aquifer in the Adamawa region, Central Africa have been determined and characterized using both the ISM and an integrated protocol of interpolation technique. The ISM can therefore be recommended for the interpretation of VES measurements in the similar Pan-African context worldwide.
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来源期刊
CiteScore
2.30
自引率
6.20%
发文量
136
审稿时长
14 weeks
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