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Typical aquifer cross-section

Hydrogeology (hydro- meanin watter, an -geology meanin the study o the Yird) is the aurie o geology that deals wi the distribution and movement o grundwatter in the soil an rocks o the Yird's crust (commonly in aquifers). The term geohydrology is eften uised interchyngeably. Some mak the minor distinction atween a hydrologist or ingineer applyin themselves tae geology (geohydrology), an a geologist applyin themselves tae hydrology (hydrogeology).