Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques

Electrical resistivity method is the most popular method among geophysical techniques in groundwater exploration mainly in evaluating hydrogeological properties of the subsurface. However, electrical resistivity method can only identify the subsurface resistance specifically the subsurface structure...

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Main Author:	Yusof, Nor Farhani
Format:	Thesis
Language:	English
Published:	2018
Subjects:	Groundwater Hydrology
Online Access:	http://psasir.upm.edu.my/id/eprint/76090/1/FK%202018%20163%20IR.pdf
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spelling	my-upm-ir.760902019-12-02T01:40:12Z Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques 2018-06 Yusof, Nor Farhani Electrical resistivity method is the most popular method among geophysical techniques in groundwater exploration mainly in evaluating hydrogeological properties of the subsurface. However, electrical resistivity method can only identify the subsurface resistance specifically the subsurface structure, not the groundwater potential zone. Other than that, different hydrogeological formations have different groundwater yield potential. Thus, by using integrated geophysical technique can give a better interpretation. The main objective is to determine the potential groundwater zone in different types of soil and rock categories. A study on 2D geo-electrical was conducted at Taiping, Perak, Serdang and Jenderam Hilir, Selangor. The technique of geophysics analysis was carried out by using two geo-electrical method of electrical resistivity and induced polarization method for better interpretations in the same area. Field works have been carried out using Terrameter SAS 4000, Electric Selector ES1064 and LUND cable with electrode. Horizontal resistivity lines were proposed with length of 400m each by using Wenner-Schlumberger configuration. Electrical current was injected into the ground and two potential electrodes are measured resulting in voltage difference for electrical resistivity and transient decay for induced polarization. The images of 2D profile have been produced using Res2Dinv software through inversion method which provided detailed information of both the laterally and vertically geological structures based on their part. The Cluster Analysis of Hierarchical Agglomerative Clustering Analysis has been used to differentiate different types of soil and rock characteristic. The data from the electrical resistivity result in form of numerical value have been used in XLSTAT-Pro software by using Ward Method. The characteristic of alluvium can be classified to clay, silt, fine and medium sand, coarse sand, sand and gravel, and gravel. Otherwise, rock characteristics can be differentiated based on the stages of rock weathered. Induced polarization method resulted in the value of chargeability that has potential to determine the freshwater of the subsurface. Thus, the integration of geophysical technique and statistical analysis can identify the high potential of aquifer zone in different categories of formation. Through this study, it can save you time and cost, where groundwater potential can be determined without running the drilling process. Groundwater Hydrology 2018-06 Thesis http://psasir.upm.edu.my/id/eprint/76090/ http://psasir.upm.edu.my/id/eprint/76090/1/FK%202018%20163%20IR.pdf text en public masters Universiti Putra Malaysia Groundwater Hydrology
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Groundwater Hydrology
spellingShingle	Groundwater Hydrology Yusof, Nor Farhani Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques
description	Electrical resistivity method is the most popular method among geophysical techniques in groundwater exploration mainly in evaluating hydrogeological properties of the subsurface. However, electrical resistivity method can only identify the subsurface resistance specifically the subsurface structure, not the groundwater potential zone. Other than that, different hydrogeological formations have different groundwater yield potential. Thus, by using integrated geophysical technique can give a better interpretation. The main objective is to determine the potential groundwater zone in different types of soil and rock categories. A study on 2D geo-electrical was conducted at Taiping, Perak, Serdang and Jenderam Hilir, Selangor. The technique of geophysics analysis was carried out by using two geo-electrical method of electrical resistivity and induced polarization method for better interpretations in the same area. Field works have been carried out using Terrameter SAS 4000, Electric Selector ES1064 and LUND cable with electrode. Horizontal resistivity lines were proposed with length of 400m each by using Wenner-Schlumberger configuration. Electrical current was injected into the ground and two potential electrodes are measured resulting in voltage difference for electrical resistivity and transient decay for induced polarization. The images of 2D profile have been produced using Res2Dinv software through inversion method which provided detailed information of both the laterally and vertically geological structures based on their part. The Cluster Analysis of Hierarchical Agglomerative Clustering Analysis has been used to differentiate different types of soil and rock characteristic. The data from the electrical resistivity result in form of numerical value have been used in XLSTAT-Pro software by using Ward Method. The characteristic of alluvium can be classified to clay, silt, fine and medium sand, coarse sand, sand and gravel, and gravel. Otherwise, rock characteristics can be differentiated based on the stages of rock weathered. Induced polarization method resulted in the value of chargeability that has potential to determine the freshwater of the subsurface. Thus, the integration of geophysical technique and statistical analysis can identify the high potential of aquifer zone in different categories of formation. Through this study, it can save you time and cost, where groundwater potential can be determined without running the drilling process.
format	Thesis
qualification_level	Master's degree
author	Yusof, Nor Farhani
author_facet	Yusof, Nor Farhani
author_sort	Yusof, Nor Farhani
title	Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques
title_short	Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques
title_full	Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques
title_fullStr	Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques
title_full_unstemmed	Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques
title_sort	evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques
granting_institution	Universiti Putra Malaysia
publishDate	2018
url	http://psasir.upm.edu.my/id/eprint/76090/1/FK%202018%20163%20IR.pdf
_version_	1747813116913123328

Evaluation of geological formation for potential groundwater aquifer by integrated geophysical techniques

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