Title

Describe and Statistical Evaluation of Hydrochemical Data of Karst Phenomena in Jordan: Al-Dhaher Cave Karst Spring

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Publication Date

May 2014

Abstract

Karstification in Al-Kura District, northwestern of Jordan, is distribution in the Tertiary rocks at chalky and marley-limestone unit and it forms a local shallow unconfined aquifer. This research is constructed to describe and study the hydrogeochemical of karst features and their effects on the hydrochemistry of the Al- Dhaher Cave. Studied samples were collected from the water of wells and springs in the study area. All types of water have a composition in milligram units for cations (Ca2+>Mg2+>(Na++K+)), and anions (HCO ->Cl->NO ->SO 2-). Calcium and bicarbonate accounts approximately 80% of the total ions. The concentrations of 34 2+ 2+ - 2+ 2+ Ca and Mg are strongly correlated with HCO3 . The rCa /rMg ratio for Al-Dhaher Spring is about 1.54, 2+ which suggests that water moves in chalky and marly limestone. Our data revealed that the main ions Ca , 2+ - Mg , and HCO3 have very strong correlation to spring discharge. The water is undersaturated with respect to calcite and dolomite, and the correlation of SIc and SId to discharge is very strong (r=0.97 and 0.96). Depending on comparing the coefficients variations, the type of Al-Dhaher Spring could be classified as conduit spring. The results of water analyses studies show that the aquifer system is prone to karstification and they show the impact of karstification on the chemical composition of spring waters.

Keywords

Karst, Water Chemistry, Carbonate, Al-Dhaher, Jordan

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RDA

Subject: topical

Karst; Water Chemistry; Carbonate; Al-Dhaher; Jordan

Type

Article

Genre

serial

Identifier

SFS0072345_00001

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