NDLI: Groundwater Chemistry in an Area Covered by Lava Flows, Aqool Area, Eastern Al Madinah Al Munawarah City, Saudi Arabia

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Groundwater Chemistry in an Area Covered by Lava Flows, Aqool Area, Eastern Al Madinah Al Munawarah City, Saudi Arabia

Content Provider	Semantic Scholar
Author	Maghraby, Magdy El
Copyright Year	2014
Abstract	The groundwater of Al Aqool area, 30 km to the east of Al Madina Al Munawarah City, Saudi Arabia is present in alluvium deposits underlying vesicular lava flows. Groundwater occurs under confined, semi-confined and confined conditions in recent alluvial deposits. The groundwater is the main source of water for drinking and agricultural uses in the area of study. The twenty seven collected groundwater samples were chemically analyzed for major ions in order to assess the groundwater quality and to understand the different geochemical processes affecting the quality. The salinity of the groundwater samples of the area of study were ranged between 487– 997 mg/l indicating medium salinity. According to the chemical analysis and the constructed diagrams (Piper, Durov, Schoeller) the prevalent chemical facies is Na-Cl water type. The geochemical change of groundwater in the study area was observed where the water types were changed from Ca-HCO3 of rain water into Na-Cl of groundwater samples. The calculated ionic ratios ((Na+K-Cl)/(Na+K-Cl+Ca), Na/(Na+Cl), Mg/(Ca+Mg), and Ca/(Ca+SO4)) indicate possible plagioclase weathering, ion exchange, limestone-dolomite weathering and gypsum dissolution; respectively. From chloride mass-balance equation the study area has a recharge (2.54 mm/y) of 4.97 % of precipitation. Major elements analyses and calculated hydrochemical parameters (SAR, RSC, MH) of the groundwater samples from the area of study revealed its suitability for both drinking and irrigation purposes.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://euacademic.org/uploadarticle/312.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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