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Saturation states of carbonate minerals in a freshwater-seawater mixing zone of small tropical island’s aquifer


Citation

Aris, Ahmad Zaharin and Praveena, Sarva Mangala and Abdullah, Mohd Harun (2010) Saturation states of carbonate minerals in a freshwater-seawater mixing zone of small tropical island’s aquifer. Chinese Journal of Geochemistry, 29 (3). pp. 278-286. ISSN 1993-0364

Abstract / Synopsis

Groundwater is a crucial resource on the Manukan Island as it is the only source of freshwater available on the island. The aquifer has deteriorated to a high degree, during the last decade. Nine domestic wells were sampled from March 2006 to January 2007 to probe the hydrochemical components that influence the water quality. Geochemical data on dissolved major constituents in groundwater samples from the Manukan Island revealed the main processes responsible for their geochemical evolution. The results using statistical analyses, graphical method and numerical model output (PHREEQC) showed that the groundwater was chemically highly enriched in Na and Cl, indicative of seawater intrusion into the aquifer as also supported from the Na-Cl signature on the Piper diagram. From the PHREEQC simulation model, calcite, dolomite and aragonite solubility showed positive values of the saturation indices (SI), indicating supersaturation which led to mineral precipitation condition of water by these minerals.


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Additional Metadata

Item Type: Article
Subject: Saltwater encroachment - Manukan Island
Subject: Water chemistry
Subject: Carbonate minerals
Divisions: Faculty of Environmental Studies
DOI Number: 10.1007/s11631-010-0457-3
Publisher: Springer Verlag
Keywords: Manukan Island; Seawater intrusion; Hydrochemistry; Saturation index
Depositing User: Khairil Ridzuan Khahirullah
Date Deposited: 28 Jun 2012 18:42
Last Modified: 04 Nov 2015 09:53
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s11631-010-0457-3
URI: http://psasir.upm.edu.my/id/eprint/16622
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