A combination of electrical resistivity, seismic refraction, and gravity measurements for groundwater exploration in Sudan
A combination of electrical resistivity, seismic refraction, and gravity measurements for groundwater exploration in Sudan
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DOI：
10.1190/1.1441269
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发表时间：
1981-09
期刊：
影响因子：
3.3
通讯作者：
R. A. Overmeeren
中科院分区：
文献类型：
--
作者：
R. A. Overmeeren
In the savannah belt of central Sudan, near the town of Kosti, a regional geophysical survey has been carried out forming part of a groundwater project. Because of the presence of detectable and significant contrasts in physical properties of the subsoil, integrated use could be made of electrical resistivity, seismic refraction, and gravity methods. In the interpretation of multilayer electrical sounding curves, additional subsurface information such as lithological well descriptions and geophysical well logs is normally a necessity for solving the problems of equivalence. Along a profile in the eastern part of the area studied, where additional subsurface information was scarce, 16 vertical electrical soundings have been made. A preliminary simple mathematical interpretation suggested possibilities for the presence of fresh groundwater in the eastern part of the profile. In order to solve the equivalence problem, seismic refraction work was carried out at some selected places; that yielded additional in...
