Editing Hydrogeology of Sudan

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Latest revision Your text
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{| class = "wikitable"
 
{| class = "wikitable"
 
|Named Aquifers||Aquifer Productivity||General Description||Water quantity issues||Water quality issues||Recharge
 
|Named Aquifers||Aquifer Productivity||General Description||Water quantity issues||Water quality issues||Recharge
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||Low to High Productivity
 
||Undifferentiated unconsolidated sediments include alluvium, aeolian sands, and coastal sediments. Aquifer properties are variable, depending largely on their lithology and thickness, as well as recharge and connectivity with surface waters. Relatively thick, coarse grained sediments can form highly productive local aquifers. These aquifers are typically unconfined.
 
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|Gezira, Atshan and Gash formations
 
|Gezira, Atshan and Gash formations
 
||Low to High Productivity
 
||Low to High Productivity
||These unconsolidated sediments consist of alluvial sands, silts, gravels and clays of Quaternary to Late Tertiary age. Aquifer properties are variable, depending largely on lithology, but where the alluvium is dominated by coarser grained deposits, can be high. The aquifers are typically unconfined. Water table depth ranges from 15 m to 40 m. Boreholes range between 30 m and 150 m deep.  
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||These unconsolidated sedimentary deposits consist of unconsolidated alluvial sands, silts, gravels and clays of Quaternary to Late Tertiary age, including the Gezira, Atshan and Gash formations. Aquifer properties are variable, depending largely on lithology, but where the alluvium is dominated by coarser grained deposits, can be high. The aquifers are typically unconfined. Water table depth ranges from 15 m to 40 m. Boreholes range between 30 m and 150 m deep.  
  
 
The Gash aquifer is generally around 60 m thick. Transmissivity values of 1000 m²/day have been reported (UN 1988).  
 
The Gash aquifer is generally around 60 m thick. Transmissivity values of 1000 m²/day have been reported (UN 1988).  

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