aquifer

(redirected from Unconfined groundwater)
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aquifer

a reservoir of ground water found in underground rock, sand and gravel layers.
References in periodicals archive ?
It can be seen that confined groundwater makes up 10% of the total inflow, the proportion of unconfined groundwater in different open-cast mine fields accounts for 6-34%, and precipitation water makes up 66-84% in the depleted area.
Quaternary deposits comprise a thin layer of peat, sand and till and unconsolidated glaciophysical sediments that constitute porous aquifers with mainly unconfined groundwater [9], influenced directly by meteorological conditions.