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Sub-Surface Investigation Using Vertical Electrical Sounding: Chennai Metropolitan Area

J. Saravanan1 , Kishan Singh Rawat 1 * and Sudhir Kumar Singh 2

1 Centre for Remote Sensing and Geo-Informatics, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Chennai, 600119 Tamil Nadu India

2 K. Banerjee Centre of Atmospheric and Ocean Studies, IIDS, University of Allahabad, Allahabad, 21102 Uttar Pradesh India

DOI: http://dx.doi.org/10.12944/CWE.13.3.06

The data or information on the sub-stratum, nature of aquifers, their spatial disposition, their hydrogeological characteristics and other information, are limited particularly in urban context. The study was performed in the Chennai metropolitan area. The objective of the study was to get the sub-surface information of the study area. The vertical electrical sounding was performed at ninety locations to identify the sub surface lithology. The Archaeans consisting of Charnockites, gneisses and dolerite occupy the southern part of the Metropolitan area. The lower portion of gondwanas belonging to the Talchir beds consist of light brown and green colored Shales occurring below the alluvium in the area between Nandanam on the east to Nandambakkam on the west. These Shales are overlying the older crystalline rocks. The lower portion of gondwanas belonging to the Talchir beds consist of light brown and green coloured Shales occurring below the alluvium in the area between Nandanam on the east to Nandambakkam on the west The Tertiary bed comprising friable white and reddish brown Sandstone occurs on the western side near Chembarambakkam and on the northwestern side between Thirunindravur and Villiwakkam. The thickness of the alluvium ranges between 5m on the southern side to a little more than 20m on the east central part of the Metropolitan area.

Alluvium; Aquifer; Archeans; Chennai; Gondwana

Copy the following to cite this article:

Saravanan J, Rawat K. S, Singh S. K. Sub-Surface Investigation Using Vertical Electrical Sounding: Chennai Metropolitan Area. Curr World Environ 2018;13(3). DOI:http://dx.doi.org/10.12944/CWE.13.3.06

Copy the following to cite this URL:

Saravanan J, Rawat K. S, Singh S. K. Sub-Surface Investigation Using Vertical Electrical Sounding: Chennai Metropolitan Area. Curr World Environ 2018;13(3). Available from: https://bit.ly/2RrC8bc

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