Geophysical Investigations to Study the Groundwater Controlling Factor in Deka Bora-Tulu Rei Sector,Mojo, Main Ethiopian Rift
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Date
2005-06
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Addis Ababa Universty
Abstract
This work presents the results of combined electrical resistivity and gravity surveys
carried out over two rural communities of Deka Bora and Tulu Rie, two largely
populated rural communities on the Mojo-shenkora road, with the objective of
locating preferred borehole sites for the extraction of groundwater for livestock and
domestic use.
The areas found in the western margin of Main Ethiopian Rift are rich in agricultural
products but are in severe shortage of drinking water for most part of the year.
Several attempts by various governmental and non governmental agencies to extract
water from the subsurface have failed. Within these locations and in areas close by
even and deep wells have failed to tap groundwater and the search for groundwater
has almost been abandoned in resent times. It was the first objective of the work to
minimize the risk of sinking dry wells by assessing groundwater.
It was found from the work that the major groundwater controlling factors are
structural and a detailed study of these structures and accurate location of the
preferred borehole site are essential for groundwater search and drilling work to
succeed. The work has also located some important potential areas for drilling and
extraction of groundwater in sufficient amounts
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Deka Bora-Tulu Rei