| Autor: |
Oluwatoyin, Ologe, Olatunji, Ola-Buraimo A. |
| Předmět: |
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| Zdroj: |
Jordan Journal of Earth & Environmental Sciences; Mar2022, Vol. 13 Issue 1, p60-63, 4p |
| Abstrakt: |
Birnin Kebbi metropolis is located in northwestern Nigeria, characterized by extensive Gwandu Formation of the Sokoto Basin. There are few or no published records of subsurface information. The study is geared towards characterizing different aquifers that inhabit groundwater in the area. The geophysical method employed is Schlumberger soundings at 51 points with half-current electrode separation (AB/2) varying from 1m to 100m. The interpreted resistivity data reveals four lithologic units across the study area: the topsoil, fine-medium sandstone, coarse sandstone and the bedrock. The fine-medium sandstone and coarse sandstone layers serve as the major aquifer units within the area of study. The fine-medium sandstone layer is the best aquifer because of its textural and associated structural features. The aquifer unit has an average resistivity value of 220Ω-m and thickness ranges from <5m to 15 m. In this study, the aquifer layers tend to decrease in thickness westward, thereby making the coarse sandstone layer as alternative aquifer unit within the area. The resistivity data has provided information on the hydrogeologic framework and subsurface geological characteristics of major aquifer units in the study area. This will assist borehole abstraction in the area with a view towards drilling productive boreholes. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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