Electrical imaging of the groundwater aquifer at Banting, Selangor, Malaysia

Umar Hamzah, Rahman Yaacup, Abdul Rahim Samsudin, Mohd Shahid Ayub

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

A geophysical study was carried out in the Banting area of Malaysia to delineate groundwater aquifer and marine clay layer of the alluvial Quaternary deposits of Beruas and Gula Formations. The Beruas Formation is formed by peat and clayey materials as well as silt and sands, whereas the Gula Formation consists of clay, silt, sand and gravels. Both Formations were deposited on top of the Carboniferous shale of the Kenny Hill Formation. A 2-D geoelectrical resistivity technique was used. Resistivity measurement was carried out using an ABEM SAS 4000 Terrameter. The 2-D resistivity data of subsurface material for each survey line was calculated through inverse modelling and then compared with borehole data. The resistivity images of all the subsurface material below the survey lines show similar pattern of continuous structure of layering or layers with some lenses with resistivity ranging from 0.1 to 50 Ωm. The upper layer shows resistivity values ranging from 0.1 to 10 Ωm, representing a clay horizon with a thickness up to 45 m. The second layer with depth varies from 45 to 70 m below surface and has resistivity values ranging from 10 to 30 Ωm. Borehole data indicate coarse sand with some gravels for this layer, which is also the groundwater aquifer in the study area. The lowermost layer at a depth of 70 m below ground level shows resistivity values ranging from 30-50 Ωm and can be correlated with metasedimentary rocks consisting of shale and metaquartzite.

Original languageEnglish
Pages (from-to)1156-1162
Number of pages7
JournalEnvironmental Geology
Volume49
Issue number8
DOIs
Publication statusPublished - Apr 2006

Fingerprint

Aquifers
Malaysia
aquifers
Groundwater
electrical resistivity
Clay
groundwater
Sand
shale
Silt
clay
image analysis
aquifer
sand
Gravel
Shale
Boreholes
Imaging techniques
gravel
silt

Keywords

  • Borehole
  • Electrical imaging
  • Groundwater aquifer
  • Gula Formation
  • Malaysia Beruas Formation
  • Resistivity

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology

Cite this

Electrical imaging of the groundwater aquifer at Banting, Selangor, Malaysia. / Hamzah, Umar; Yaacup, Rahman; Samsudin, Abdul Rahim; Ayub, Mohd Shahid.

In: Environmental Geology, Vol. 49, No. 8, 04.2006, p. 1156-1162.

Research output: Contribution to journalArticle

Hamzah, Umar ; Yaacup, Rahman ; Samsudin, Abdul Rahim ; Ayub, Mohd Shahid. / Electrical imaging of the groundwater aquifer at Banting, Selangor, Malaysia. In: Environmental Geology. 2006 ; Vol. 49, No. 8. pp. 1156-1162.
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