Geophysical techniques in the study of hydrocarbon-contaminated soil

Umar Hamzah, Mohd Azmi Ismail, Abdul Rahim Samsudin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Geophysical surveys in particular ground penetrating radar (GPR), electrical resistivity tomography (ERT) and vertical resistivity probe (VRP) were used in mapping subsurface geological structures and groundwater contaminants at Sungai Kandis, Mang to identify the approximate boundaries of contaminant plumes and to provide stratigraphic information at this site. The study area was formerly an illegal dumping site of hydrocarbon and toxic waste. A good correlation exists between GPR signatures, ERT layers, vertical resistivity probe and the contaminated soil. The presence of contaminant plumes as well as the water table are also observed in the GPR and ERT sections at depths approximately of 0.5 to 1m. In this study, a total of 16 GPR traverses and 10 ERT lines with lengths from 30 to 100 m were established. VRP measurements were conducted in 14 shallow boreholes with a maximum depth of about 1m. The VRP results show high apparent resistivity values ranging from 200 to 10000 Ωm associated with oil contaminated layer. The presence of this layer was also detected in the 2D resistivity sections as a thin band of high resistivity values ranging from 60 to 200 Ωm. In the GPR section, the oil contaminated layer exhibits discontinuous, subparallel and chaotic high amplitude reflection patterns.

Original languageEnglish
Pages (from-to)133-138
Number of pages6
JournalBulletin of the Geological Society of Malaysia
Issue number54
Publication statusPublished - Nov 2008

Fingerprint

electrical resistivity
hydrocarbon
ground penetrating radar
tomography
probe
pollutant
contaminated soil
plume
oil
geophysical survey
geological structure
water table
borehole
groundwater

Keywords

  • Contaminated soil
  • Electrical resistivity tomography
  • Ground penetrating radar
  • Vertical resistivity probe

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Geophysical techniques in the study of hydrocarbon-contaminated soil. / Hamzah, Umar; Ismail, Mohd Azmi; Samsudin, Abdul Rahim.

In: Bulletin of the Geological Society of Malaysia, No. 54, 11.2008, p. 133-138.

Research output: Contribution to journalArticle

Hamzah, Umar ; Ismail, Mohd Azmi ; Samsudin, Abdul Rahim. / Geophysical techniques in the study of hydrocarbon-contaminated soil. In: Bulletin of the Geological Society of Malaysia. 2008 ; No. 54. pp. 133-138.
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