Pencirian Sifat Akuifer dalam Batuan Granit di Selangor

Translated title of the contribution: Characterization of aquifer properties in granite in Selangor

Hamizah Mohamad, Norsyafina Roslan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In Selangor, groundwater is used as an alternative water source in manufacturing industry and also for quarry activity. These abstraction wells are located in either fractured metasediment or granitic rock aquifer. It is important to understand the characteristic of fractured rock aquifer especially in granite due to its increasing demands. Therefore, this study aimed on characterizing the aquifer behavior in fractured granite in Selangor. The study methods used include detailed mapping at IJM Quarry at Sungai Buloh and analysis of well logs, pumping test analysis and well water chemistry for wells in granite in Selangor. The results showed that the aquifer type is confined to semi-confined aquifer. Well log indicates the presence of residual soil layers comprises of sandy clay to hard clay with thickness up to 50 m. The bottom layer is underlained by fractured granite which acts as water bearing layer. The fractures are observed at 18.27 to 144.9 m depth. Lineament analysis in study area shows a positive correlation with discontinuity analysis in the field in the direction of northeast-southwest and northwest-southeast, which is in line with Kuala Lumpur and Bukit Tinggi fault zone. Transmissivity values range from 2.6 to 36.1 m2/day while hydraulic conductivity values from 0.06 to 4.6 m/day. Well discharge rate is <10 m3/h. Total dissolved solids values are low (<372 mg/L). The fractures in granite have increased its capability as an aquifer. Chemistry analysis showed that there are possibility of few localized being polluted.

Original languageMalay
Pages (from-to)2331-2338
Number of pages8
JournalSains Malaysiana
Volume46
Issue number12
DOIs
Publication statusPublished - 1 Dec 2017

Fingerprint

granite
aquifer
well
quarry
study method
sandy clay
residual soil
confined aquifer
transmissivity
metasediment
well water
lineament
water chemistry
rock
hydraulic conductivity
fault zone
pumping
discontinuity
manufacturing
analysis

ASJC Scopus subject areas

  • General

Cite this

Pencirian Sifat Akuifer dalam Batuan Granit di Selangor. / Mohamad, Hamizah; Roslan, Norsyafina.

In: Sains Malaysiana, Vol. 46, No. 12, 01.12.2017, p. 2331-2338.

Research output: Contribution to journalArticle

Mohamad, Hamizah ; Roslan, Norsyafina. / Pencirian Sifat Akuifer dalam Batuan Granit di Selangor. In: Sains Malaysiana. 2017 ; Vol. 46, No. 12. pp. 2331-2338.
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