One of the substantial of geophysics is to investigate the subsurface condition of the earth
(groundwater) using appropriate geophysical techniques. In this research the correlation of self
potential (SP) and ground magnetic methods was used to investigate fluid seepage in
Archaeological site, Sungai Batu, Lembah Bujang, Kedah, Malaysia. Self-potential method was
used to determine flow of water, and Ground magnetic method was used to find object that can
influence the result of self potential measurement and the aquifer depth, the lines were spread 0m
≤ x ≤ 9m, 0m ≤ y ≤ 30m with a trace intervals of 1.5m and 0.75m per electrode spacing
respectively. The result display by Self Potential signals gives a clear understand that water flow
from higher value (central) towards the lower value which is mostly at the southwest part than
other areas and distinct level of feasible flow at different part ranges from -30mV to
+35mV,which are very related to seepage flow patterns, negative SP anomalies were related with
subsurface seepage flow paths (recharge zone) and positive SP anomalies were related with areas
of seepage outflow (discharge zone); and Ground Magnetic signals shows good details of the
buried materials with high magnetic values which was interpreted as baked clay bricks and low
magnetic values indicate groundwater seepage with depth of 5m. Therefore, the two results have
correlation significant at 0.8 which show good correlation in groundwater investigation in this
study, which validates the results.
Primary Language | English |
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Subjects | Metrology, Applied and Industrial Physics |
Journal Section | 3 |
Authors | |
Publication Date | May 17, 2018 |
Submission Date | January 17, 2018 |
Published in Issue | Year 2018 |
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